Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
×
Music Media

New Audio Disc Formats and Copyrights 321

JollyGoodChase writes "CNN has an article on Super Audio CD digital watermarking and the lack of digital outputs on any SACD or DVD-Audio players. Covers dealer responses, tech issues, and consumer options in a good summation of this technology."
This discussion has been archived. No new comments can be posted.

New Audio Disc Formats and Copyrights

Comments Filter:
  • by woogieoogieboogie ( 598162 ) on Saturday November 09, 2002 @12:09PM (#4632205)
    Who can tell the audio difference between SACD and CD. It might be higher quality, but can people actually hear the difference.
    • From everything I've read, you only hear a difference in the more expensive players (ones that cost more than $1000). Sony has a lot of cheap SACD/DVD players now, but they don't show off what the format is capable of. Makes me kind of wonder if the whole SACD format is worthwhile because if it was significantly better, then any cheap player should be better than the msot expensive CD player.
    • It sounds markedly better, IMO. The problem is that my buddy (where I auditioned the DVD-A) had to buy DVDs he didn't even like just to be able to hear the format. If the record companies produce their entire catalog on both formats and the price really reflected the cost, then we might have something.
      DVD-A *should* always come with a standard CD layer (usually in Dolby Digital or DTS) and I believe if we were allowed to rip that under fair use, the format would take off.
      • DVD-A *should* always come with a standard CD layer (usually in Dolby Digital or DTS)

        not quite sure what you mean here. if it was a cd layer (like hybrid sacd's have) then it would be plain redbook stereo and would play in any cd player (thats the idea behind sony's hybrid discs', except that that afaik, only a few of the sacd's out there actually are hybrid's. most just have the sacd layer and no cd layer).

        or do you mean that the dvda disc should have a dvda layer and a dvdv layer, the latter having a dolby digital (for ubiquity) or dts (for bandwidth) track with the same music on?

        or do you mean a cd layer with a DTS track encoded on it (like current dts disc's (note, not "dts cd's" as they are not redbook standard, and neither do they label themselves as such)).

        I think dvda's should go for the middle option I specified (and indeed, they might for all I know) as thats how they can get ppl to buy their media without needing the new hardware right now

        I like sacd in concept more than dvda I have to admit. the format mandates a stereo track in addition to any multichannel track, however, I do think that a cd layer should also be part of the standard so that ppl can buy an sacd without a player, safe in the knowledge that if/when they get an sacd player things will get better.

        dave

        PS. I also think that cd's album's should come with a free dvd video disc of the artists music vid's. otherwise they'll only go to waste
    • SACD = AMAZING!!! (Score:5, Informative)

      by tweakt ( 325224 ) on Saturday November 09, 2002 @12:22PM (#4632287) Homepage
      I bought a new Sony DVD player and for basically no extra cost it happens to play SACD as well. Dude, I was skeptical, but even on my humble system, I was POSITIVELY FLOORED.

      It came with a sampler disc. Had some great blues and jazz tracks as well as some Roger Waters (Pink Floyd). It's so lifelike, realistic, almost gives me goosebumps. But if you are the type that can't tell the difference between 128k MP3 and the CD, then don't even bother.

      My point is: (A) The difference is very clear. The high end is so full, cymbals sound like they are right in the room with you. (B) You don't need to have an audiophile level system to hear it (just halfway decent speakers). Of course every bit helps. For reference I have a set of KLH speakers, good but not very expensive.

      • by boa13 ( 548222 )
        Well, doh, it's a sampler disc. You would fully expect it to sound just great! I'm sure they've had a Team of Super Sound Engineers to fill the high-end.

        Don't get so hyped on a single record. I'm willing to believe SACD sounds better than a CD, but I'm also certain that having a good sound engineer makes much more difference.

        Looking at my CD collection, the symphonic version of the Princess Mononoke soundtrack sounds like shit and forces me to boost the volume to dangerous levels to enjoy it somewhat, while the symphonic version of the Castle in the Sky is simply the best-sounding CD I have ever heard. Same author, same technology, abysmal difference in quality.
    • by Anonymous Coward on Saturday November 09, 2002 @12:23PM (#4632290)
      I can hear the difference, but you aren't going to hear it on a boombox or a set of computer speakers. To me, everything that I didn't like about the sound of CD's is gone with the SACD and all that's left is the music. I find I can get into the music more because there is nothing even slightly annoying about the sound quality to distract my attention.

      The watermarking on a SACD disc is done by varying the physical 'pit' sizes, rather than embed some digital code in the data stream. There is a pattern of varying pit sizes in which the watermark is embedded. A SACD player can discern these slightly different sizes and won't play a SACD unless it has the right watermark. The good thing about doing it this way is the audio content is entirely unaffected by the watermark - it doesn't distort the sound in any way. It does make it much more difficult to copy the SACD layer, though. But most SACD discs are hybrid, meaning there is also a regular CD layer which can be read and copied as usual. Only the higher quality SACD layer is copy protected. For me I am willing to accept the copy protection to get the better sound quality.
      • by mccalli ( 323026 ) on Saturday November 09, 2002 @03:48PM (#4633208) Homepage
        ...most SACD discs are hybrid, meaning there is also a regular CD layer which can be read and copied as usual. Only the higher quality SACD layer is copy protected.

        Now isn't this the perfect way to go about copy-protecting music? You see, if I want to encode to MP3 (and I do, I'm an iPod owner) then, as I read your statement, I'd be able to do it. I wouldn't get the best available quality, but so what? I'm compressing it to a lossy format anyway which is only going to get played over a set of headphones.

        Is this the compromise we've been looking for? Non-protected mid-range quality which allows us to rip and encode as we choose, followed by a layer of higher-quality music which can't be ripped? I'd be satisfied with that.

        Cheers,
        Ian

    • Then clearly this format isn't targeted at you, so don't bother. Since SACD's play on regular cd players, I imagine it would be pretty easy to rip them from the stereo 44k 16bit layer and compress it until it sounds like it was recorded on a microcassette.

      The target audience here, for now anyway, is clearly audiophiles and people who want to use their 5-speaker home theater setup for music as well. Unfortunately, they're going to alienate both of these audiences by refusing to add digital output.

      Me, I'll stick with vinyl. It's cheap enough that I don't mind paying for the product, sounds better than cd, and has a tactility that can't be argued with.

      Scott
      • by Anonymous Coward
        Vinyl sounds like crap compared to CD. Its a scientifically proven fact, and any "audiophile" that tells you that vinyl sounds warmer than CD or any other BS is blowing smoke up your ass.
        • No, vinyl does, in fact, have a warmer sound than CD. That doesn't mean that vinyl is truer to the original recording - it's not. The warmth of vinyl is an artifact of the medium. It's sound not found in the original recording, generated by a variety of environmental factors, like poor vibration isolation in your turntable, varying vinyl quality, even dust in the grooves. Many people happen to like that vinyl sound, regardless of it's relationship to audio fidelity.
      • The target audience here, for now anyway, is clearly audiophiles and people who want to use their 5-speaker home theater setup for music as well

        Audiophiles do not listen to music in home theater mode.

      • Since SACD's play on regular cd players

        they *should* play on normal cd players as the standard mentions putting a cd layer in, alas it only has it as an option, not as required. hell, most of the sony discs only have an sacd layer and therefore a cd player won't even know you've put a disc in.

        dave
    • If you're listening on any kind of home theater equipment, the difference between CD and SACD or DVD-A is very easy to hear, particularly if you've got a full six channels. If you're listening on crappy headphones or computer speakers, it's less apparent.

      You can get CDs to output in 5.1 - sort of - with Pro Logic II, but the difference between that and a true multichannel format is still night and day.

      A lot of SACDs are stereo only, but even those are audibly better than CD.

      I believe the ultimate goal of these "copy protected" formats will be to send an encrypted signal over ieee1394 - we're starting to see 1394 ports on high-dollar amps, anyway. Neither SACD nor DVD-A will output to a digital connector, although most *do* have those connectors for use with CDs. From what I've read, the equipment manufacturers are claiming that current digital outputs can't meet the badnwidth needs of the multichannel formats, hence the analog 5.1 (six cables) and presumably firewire connectors. This is a stupid thing, but I really want to see a multichannel format move forward, so I'm willing to accept it.
    • The only real difference is more channels of sound. Actual sound quality is no different to a pair of human ears. The only thing that might make them sound any better is the fact that they are going to do a much better job mastering the early releases. If they took as much care when mastering cds, they'd sound just as good.
      • by Anonymous Coward
        You, my friend, are grossly misinformed. Please don't spout off BS when you have no clue what you're talking about. All "regular" CDs (including those recorded at 24bit/96kHz or better) encode a waveform using 16bit/44.1kHz PCM (Pulse Code Modulation), commonly referred to as the "redbook" standard. SACDs, on the other hand, use DSD (Direct Stream Digital) high resolution coding. This samples the music at 64 times the rate of CD, or 2.8MHz. The signal is recorded as a single bit variation from the previous sample and the waveform reconstructed using a simple sigma-delta process. The dynamic range for SACD is 120dB with a bandwidth of 100kHz though these will be limited by implementation and electronics.
    • Sure, Beta was better quality, but VHS was more convient....and these new formats are just like Beta, better quality but less convient for the consumer, and thus doomed to failure.

      ttyl
      Farrell
  • by no reason to be here ( 218628 ) on Saturday November 09, 2002 @12:09PM (#4632216) Homepage
    that just like DVD-region encoding and similar BS that this will begin to disappear in a few years, if the standard is to survive.

    also, did anyone else notice IBM as one of the companies ultimately behind DVD-audio? Do you think big blue will give linux hackers information on the copy-protection scheme used in DVD-audio as part of their commitement to opensource/free software?
    • by garcia ( 6573 ) on Saturday November 09, 2002 @12:16PM (#4632261)
      no, this is a lack of digital outputs. I am less worried about the damn security, I am worried that I will not be able to use these players w/the other devices I already have...

      Now, do these morons really think that people care about "superior audio quality" when they really only want to rip/download MP3s?

      The only time I am interested in SUPERIOR audio quality is when I am going to be listening to a live show (SBD), and when I am doing that, it is either already on CD, SHN, etc, or on tape (Nakamichi).

      MP3s are for people that want to download music to enjoy, not to worry about sound quality. Only people who are SERIOUS about sound quality would buy these players, and I am already sure they haven't used MP3s too much.
    • Why DVDs suck (Score:2, Insightful)

      by tiltowait ( 306189 )
      With DVDs first came out, the general consumer opinion was "great - now I'll have the same flexibility with viewing that CDs offered over cassette tapes." Well guess again, buster. With most DVDs you're now forced to watch 2+ minutes of INTERPOL and FBI warnings before getting to a chapter index on a standard player (some of it is usability flashy annoyances, but you can't skip any of it).

      These 2+ minute warnings do nothing to prevent piracy and only serve to annoy people - they're rather like the recently-dumped "are you carrying any bombs" questions at airport check-ins. Technological advances and misguided DRM measures just don't mix. It doesn't help that the entertainment industry is just paranoid of any new technology:

      "I say to you that the VCR is to the American film producer and the American public as the Boston strangler is to the woman home alone."
      - Jack Valenti in 1982, trying to get congress to outlaw the VHR.
      • Re:Why DVDs suck (Score:4, Informative)

        by Cinematique ( 167333 ) on Saturday November 09, 2002 @01:56PM (#4632710)
        +4 Insightful?!

        *Some* DVDs have somewhat lengthy FBI warnings, but the idea that you're forced to "watch 2+ minutes" of them is a gross overstatement. 30 seconds, at the most. If you can prove me wrong, I'll give you $20. Obviously, those who modded this post up felt that it was either clever sarcasm, or are simply blind and ignorant.

        Yes, you are prevented from skipping the warning on most DVDs, but again, they aren't 120 seconds long. Some major studio DVDs don't even have FBI warnings at all! It depends on the distributor, motion picture, and movie studio.
        • Re:Why DVDs suck (Score:3, Interesting)

          by Flamerule ( 467257 )
          +4 Informative?!
          Yes, you are prevented from skipping the warning on most DVDs, but again, they aren't 120 seconds long.
          The point isn't the length of the warning, it's that on a DVD player and DVD that I bought, I am prevented from skipping through parts of the data stream. It is a wretched and disgusting thing to watch my DVD player flash a "not allowed" icon up when I try to do something, because the manufacturer has conspired with the content cartel to remove functionality (or add a "functionality" I don't want!) from the device.

          The same thing happens with my Realmagic Hollywood+ program on my windows partition, but happily when I'm in Linux, MPlayer and Xine will let me do whatever I want. Unfortunately, support for my DVD decoder card isn't quite where it needs to be (you can check out the state of affairs at the DXR3 and Hollywood+ driver project page [sourceforge.net]), so the DVD quality is a little off in Linux.

          Actually, the example of being unable to skip the FBI warning is a good one to show non-techwise people, who might zone out if you tried to explain the entire CSS encryption and region-coding scheme to them. I watched something with my mom recently, and she definitely noticed when I pointed out how we were being forced to watch the warning screen.

    • that just like DVD-region encoding and similar BS that this will begin to disappear in a few years, if the standard is to survive.

      I wouldn't count on region coding to go away. The DVD-Video format has been available for five years and so far no major (and very few minor) DVD content producer has recanted them, except for the asian piracy rings. The game companies keep producing new consoles with too, consoles have been doing it for quite a long time.
  • by akincisor ( 603833 ) on Saturday November 09, 2002 @12:11PM (#4632225)
    Hah!

    The last time their "advanced technology" was foiled by a felt tip pen! I hope they have something better.

    Wait... I hope they dont!
  • so what... (Score:3, Insightful)

    by cygnus ( 17101 ) on Saturday November 09, 2002 @12:11PM (#4632228) Homepage
    there are always pro models of all gear that lack the sorts of 'anti-piracy' features of the commercial ones. once one person rips a source and it hits the Net, what's the difference?
    • ...that's when Palladium takes over.
  • by Chester K ( 145560 ) on Saturday November 09, 2002 @12:14PM (#4632250) Homepage
    Consumers aren't going to run out and buy all new hardware just to support a new format that gives them really no added capabilities over their existing hardware.... CD-Audio is good enough quality sound; this new format doesn't offer enough of an improvement for it to catch on -- and that'd be the case even if the formats weren't fair-use crippled. Once you throw that into the equation, these formats have an even dimmer potential.

    A format doesn't begin mass market acceptance until the fanatic audiophiles buy into it at the beginning, and those are exactly the types of people who will raise the biggest stink about the copy protection, and the lack of digital audio out.
    • by gilroy ( 155262 ) on Saturday November 09, 2002 @12:25PM (#4632297) Homepage Journal
      Blockquoth the poster:

      A format doesn't begin mass market acceptance until the fanatic audiophiles buy into it at the beginning

      No. A format doesn't begin mass market acceptance until the big record labels decide to stop accepting buybacks of the old medium. That's how CDs became "mass market": record stores stopped shelving vinyl because the record companies stopped buying back unsold copies. At that point, every vinyl album that didn't move became undigetible inventory, and it didn't make sense to buy many or even any.
    • by dirk ( 87083 ) <dirk@one.net> on Saturday November 09, 2002 @12:53PM (#4632416) Homepage
      A format doesn't begin mass market acceptance until the fanatic audiophiles buy into it at the beginning, and those are exactly the types of people who will raise the biggest stink about the copy protection, and the lack of digital audio out.

      These are exactly the people who won't care about copy protection, because they don't want a lossy copy on their computer. They want these formats for the superior quality, and if you want superior quality, you don't care as much about maiking a lower quality copy. Audiophiles are the ones who still claim the MP3 is a horrible format even though the average person can't tell the difference between cd audio and MP3. They won't care that they can't make a copy of it, because the copy will invariably be of worse quality, and that is exactly what the audiophile doesn't want.
      • They won't care that they can't make a copy of it, because the copy will invariably be of worse quality, and that is exactly what the audiophile doesn't want.

        They might not want to copy it, but they want to use their fancy [dcsltd.co.uk] high-priced [dodsonaudio.com] DACs [audioreview.com].. which they won't be able to do without digital outputs.

        --sean
      • by fyonn ( 115426 ) <dave@fyonn.net> on Saturday November 09, 2002 @02:15PM (#4632801) Homepage
        These are exactly the people who won't care about copy protection

        these are exactly the kind of people who *will* care about copy protection as it means they can;t reuse their investment in high quality external dac's and means that they have to rely on the bass management capabilities in the player (which are usually fairly basic) and can't use the often much more advanced fine bass control available to the pre/pro.

        audiophiles don't give a stuff about mp3's really, but what they do care about is quality of sound and doing things right. a 6 channel analogue out means that they are not maximising the capabilities of their equipment.

        here's an example. the player might allow you to set a bass crossover of 80hz, yet you main speakers can go down to 45hz, and at better quality than your sub. your pre/pro will allow you a much finer control of the crossover point but thats irrelevant as you can;t use it.

        more importantly I think. one of the coming "big things" is room correction. the biggest influence on sound quality for many people is the room you're listening to the music in. systems by companies such as TacT allow you to measure the frequency characteristics of the room and pre-correct the audio signal for the room before it hits the power amp (and therefore, speaker). this requires a digital copy of the sound to work on and if all you can get from your player is analogue then thats a wasted preamp stage and it means that it's quite likely that a cd could sound far better than an sacd or dvda as the cd signal is being properly processed to sound great in your room, and the sacd/dvda isn't.

        thats why audiophiles care

        dave

        PS. room correction is a pretty small field in consumer electronics now, but I reckon it'll become bigger news in 5-10 years
    • Jack - come read this post. Who the hell do these people think they are whining about fair use and flexibility and choice and all that other liberal crap. Mass acceptance? Hah. Don't make me laugh. We're going to eliminate the standard CD just like we did the LP and combine it with all the legislation that we're buying and they'll have no friggin' choice! Well charge more for these and force the dumb bastards to buy their whole collection over again. Come on baby, Hilary needs a new Mercedes!

      It's war, I say, war damn it! What makes these consumer slimes think that they can have what they want. Consumers exist for the sole purpose of feeding corporate bottom lines an padding my goddamn wallet. If we could do away with dealing with these %$#@ consumers entirely and just collect our money through taxes it would be a better world. Hey-wait a minute ... what are we paying those congressmen for? Get senator Payme Butgoode on the phone - it's time for some new legislation!

    • by mosch ( 204 ) on Saturday November 09, 2002 @01:04PM (#4632455) Homepage
      Well, for people who have a nice DTS 6.1 system, the new formats allow you to use all those speakers you've got sitting around the house. Of course at the moment that's not a particularly compelling reason, because having the church organ behind you and the gospel choir in front of you is only novel for so long.

      I happen to have a DVD-Audio capable DVD player, and to be honest I don't think it's anything special. CDs still have excellent response over the range that's audible to humans, and 96db is a large dynamic range, no matter how you slice it.

      In short, speaking as a DVD-Audio owner, I recommend not using DVD-Audio.

  • Still copyable (Score:4, Insightful)

    by upt1me ( 537466 ) on Saturday November 09, 2002 @12:14PM (#4632253) Homepage
    If there is sound coming out of my speakers there will always be a way to make that sound into a mp3. Don't they understand consumers want mp3s or some other digital format.
  • I don't know why compainies waste millions of dollars trying to copy-protect CD's. It's useless.

    If you can play it, you can record it. You can capture the audio from the source, not nessisarilty with an MP3 ripper, but with a 3rd paty stereo or dolby recorder. It's quite easy for anyone with half a brain.

    Just capture the source as a WAV or orther format and you can burn it however you like.

  • SACD and digital-out (Score:4, Interesting)

    by tweakt ( 325224 ) on Saturday November 09, 2002 @12:17PM (#4632267) Homepage
    At least for SACD, it's not because of purely copy protection reasons.

    SACD output is 2.8Mbit/s. Toslink cannot support this as it's not just the bitrate but its a completely different way of sampling.

    For what it's worth SACD is the one truly innovative format, DVD-Audio just pushes up the sample size/sample rate that AudioCD has, is a completely new way to do things. See here for background [sony.com.sg]

    Anyway....
    There is no(*) receivers that support decoding this into the 120db dynamic range and 100khz frequency range that the format supports. So the solution is to decode to high bandwidth analog outputs and feed each channel in analog format directly to a discrete amplifier.

    (*) actually I just saw one the other day, a pioneer, with IEEE-1384 input for SACD/DVDA type formats, now to find a player with this output.

    • by mhatle ( 54607 ) on Saturday November 09, 2002 @12:33PM (#4632326) Homepage
      You need a Pioneer VSX-49TXi for the reciever (i.Link in) and a Pioneer 47Ai SCAD player to send the signal over i.Link.

      I havn't personally heard this combination, but I've been told the sound is incredible.

      --Mark
    • Some SACD players have digital outs (e.g. Accuphase), but they only work when playing regular CDS and are disabled when SACDs are played. It is similar with DVD-Audio, it is possible to set up the disc so that it will not output the 24/96 datastream on the digital output. Instead you only get the downsampled version of the data. However many smaller record labels aren't so nasty and will let you output full resolution data, so that if you have a high quality DAC that can handle 24/96, then you get great sound, and you could import it to your computer it if you wanted.
      • Think about when some audiophile will try to play the newest SACD in his/hers perfect system: Total silence! I surely hope they complain to the store, "This fscking CD is blank!".
        J.
    • by Anonymous Coward

      There is no(*) receivers that support decoding this into the 120db dynamic range and 100khz frequency range that the format supports... (*) actually I just saw one the other day, a pioneer, with IEEE-1384 input for SACD/DVDA type formats, now to find a player with this output.

      The WSJ had a fascinating piece [wsj.com] [subscribers only] on SACD last year. Some excerpts:

      The Future of Sound: SACD
      By EDWARD JAY EPSTEIN
      April 24, 2001

      Mark Levinson, the archguru of ultra hi-fi musical reproduction, has stopped recording music on conventional CDs. He no longer even listens to them. And, while his name still is burnished on some of the world's most expensive CD players -- the Mark Levinson Reference CD Player, for example -- by a company which bought his brand, and name, years ago, he discourages clients at his own company, Red Rose Music, from buying conventional CD gear. Instead, he records all his music in the new Super Audio CD format (SACD) and recommends to his customers that, if they want digital music, they buy SACD players.

      SACD, which was recently launched in America by Sony and Philips, the same partnership that, a quarter century earlier, developed and patented the CD, is identical to the CD in its dimensions and appearance but has a different and far superior way of encoding and decoding digital sound.

      Mr. Levinson explains that this change is crucial to the future of digital sound. "SACD addresses what has become an international epidemic: PCM." PCM, which stands for Pulse Code Modulation, is the operating system used for all digital sound -- CDs, movies, television, DVDs, computers, etc. -- with the exception of SACDs. Mr. Levinson's concern about PCM goes beyond the quality of the music it reproduces. He believes that PCM induces toxic stress in listeners.

      The Sony executives responsible for marketing this new format do not share Mr. Levinson's view about the toxicity of PCM. But they acknowledged that there were sonic problems with PCM, which had resulted in reports of "listening fatigue," as David Kawakami, who directs the Super Audio project for Sony, put it to me. All agreed that SACD was vastly superior. So why had PCM become the standard for digital sound?

      Mr. Kawakami explained that PCM had come about as an engineering solution to "a bit-management problem." In the early 1980s, Sony stipulated two requisites for developing digital sound. First, the container itself, which was the CD disk, could not be more than 4.75 inches in diameter -- a dimension that would allow CD players to meet the European standard for an audio player on an automobile's dashboard. This meant, given the state-of-the-art technology then, that the CD could not hold more than 650 million bits of data. Second, it had to be capable of playing at least 70 minutes of music -- the length of a typical symphony -- which required more than 2.5 billion bits of digital data.

      To meet these seemingly contradictory requirements, part of the signal had to be eliminated, but without degrading the sound so much that it became unacceptable to the public. Enter PCM. This ingenious electronic fiddle truncated the original bandwidth from 100,000 to 20,000 hertz, since humans cannot normally hear frequencies above 15,000 hertz, and "sampled," or took a digital snapshot, of the remaining information 44,000 times a second. This doctored data was repackaged into 16-bit packets capable of playing back a symphony in 74 minutes or less.

      Of course, the acoustical engineers who invented PCM knew that the condensed 16-word product would be inferior to the original: For one thing, filters, on both the encoding and decoding ends, cause audible "errors." For another, chopping out all the information between 20,000 and 100,000 Hertz reduced the harmonic depth of the music itself...

      Being an early adopter, I bought an SACD player as soon as it was available. But then I discovered my very expensive ($10,000) pre-amp redigitalized the SACDs into PCM. Aside from this sophisticated circuitry, there was the problem of the volume control. Like that of many other pre-amps, mine filtered out all bandwidth over 20,000 hertz. That is because, before the introduction of SACD, sonic information over 20,000 hertz would be heard as unintended noise. So I still was not getting the full benefit of SACD.

      Surfing the Internet with key words like "audiophile" and "volume control," I then found in Boise, Idaho, something called a passive volume attenuator, made by Placette Audio and sold for $1,400. By using several dozen precision resistors, costing about 300 times as much as a conventional volume control, the Placette was capable of controlling the volume from the SACD without filtering out any of its bandwidth.

      Once I had hooked up my Placette, I was finally able to listen to unadulterated PCM-free music. I listened on available SACDs, selling for about $25 -- everything from jazz and church choirs on the DMP sampler I bought to classical Bach on an acoustical guitar and a Rupert Brooke poem, read by "Sex and the City" actress Kim Cattrall (who is Mark Levinson's wife) on Red Rose Music's sampler.

      • To meet these seemingly contradictory requirements, part of the signal had to be eliminated, but without degrading the sound so much that it became unacceptable to the public. Enter PCM. This ingenious electronic fiddle truncated the original bandwidth from 100,000 to 20,000 hertz, since humans cannot normally hear frequencies above 15,000 hertz, and "sampled," or took a digital snapshot, of the remaining information 44,000 times a second. This doctored data was repackaged into 16-bit packets capable of playing back a symphony in 74 minutes or less.

        First of all, PCM wasn't invented for CDs. It dates back at least to World War II, when the British PM and US President were linked by an encrypted digital phone line. This was covered on Slashdot.

        Second, PCM is not an "ingenious electronic fiddle". It is the most obvious, straightforward way of digitally encoding an analog signal. In other words, "sample at a fixed interval and record the intensity as an integer from 0 to N". If the CD creators were looking for a "fiddle" to fit more sound in less space, they could have looked at delta encoding or other schemes that have less quantifiable performance limits than PCM. Of encodings, PCM is least deserving to be called a fiddle.

        I don't know where this person got the idea that the "original bandwidth" is 100 KHz. The bandwidth of an accoustic instrument is theoretically infinite, but the upper limit of human hearing is roughly 20 KHz. Kids can hear higher - I think I was tested at 24 KHz when I was young, and middle-aged folks have usually decreased to ~ 15. The bandwidth of the original recording/mastering chain was probably 20 KHz.

        He conflates PCM with 16 bit/44.1, and makes it sound like a horrible Procrustean truncation of the signal. This is nonsense. 16 bits allows 96 decibels of dynamic range. It's incredibly unlikely that a home playback setup allows this. Realistically, you might have 50 dB dynamic range between background noise and the level where the neighbors call the police. And if you enjoy listening to stuff above 20k, ask your owner for a new rawhide chew toy. You'll like it more than a SACD.
  • by tonywestonuk ( 261622 ) on Saturday November 09, 2002 @12:19PM (#4632273)
    What is stopping someone recording the Analogue outputs using a high quality sound card, and then burning the results onto CD?.... I'm pritty sure that there would be very few people who could tell the minute difference in qualtity, and then the format would be fully copyable by anyone....... So what about the digital watermark- since I doubt that every CD sold would have a different watermark, and therefor they'd still be unable to trace the original 'CD Pirate' from the n'th copy down the line.

    AFAIK, Digital watermarks are removed when the music is encoded with Ogg/MP3 , after all these compressions work by removing the sound elements that humans percive poorly.

    Maybe, this is just a way of ensuring only 'approved' cd's are playable on this equipment, and therefore protecting their monopoly from the threat of joe blogs distibuting his own music without going through a record company....

    • More to the point, in DVD-Audio's case, it's just a DVD. How long will it be before someone writes a ripper (ala DVD2SVCD but for audio) that will rip them to the format of your choice? You don't need digital out, in fact it's the least opportune method for ripping something because it only operates at 1:1 speed. My PC can generally re-encode an AVI to SVCD resolution and bitrate MPEG2 at 1:1 speed, I can MP3 as fast as I can rip with my plextor while doing other things, I can decode a DVD while only using a few percentage points of my CPU's capacity... Why would I want to use SPDIF to rip a DVD Audio Disc?
  • Decide! (Score:2, Insightful)

    by Anonymous Coward
    Hey music industry, could you make your mind up about whether you don't want the analog loophole or want to avoid digital quality leaks? SACD players without digital ports? You have got to be kidding. Next thing we'll hear about is a player with neither analog nor digital ports...
  • by mao che minh ( 611166 ) on Saturday November 09, 2002 @12:26PM (#4632300) Journal
    I wonder what an acceptable solution for the masses would be for the protection of copyright material? It's obvious that the way that media is exchanged and used has changed with the information age, and this change has brought on a new market climate that the movie and music industries must learn to conduct trade in. The people seemingly won't tolerate DRM and similar "treacherous computing ;)" models, we immediately defeat any encryption schemes that they come up with, and we bicker and complain about every action that the media giants take in defending their goods.

    So what are they supposed to do? Start using "pay for play" market strategies more? Blow hundreds of millions of dollars coming up with yet another encryption scheme that two guys at MIT will crack the next Sunday? Or, will they dump their millions into the pockets of unscrupulous politicians and companies like Microsoft, and eradicate the act of personal computing as we know it? My opinion: First, they must lower prices. There is no reason that 90% of the artists out there should be earning more then average Joe. And second, they must implement more intensive pay for play schemes and stop relying on the sale of mass amounts of over priced garbage.With lower prices on complete albums, and the ability for people to pay only for the songs that they like, I think that you could see the music industry sustain the success that they have had in the past (not like they are hurting now, mind you). One would hope at leastthat with the increase in sales, they might stop shelling out billions in their campaign against our freedom.

    • What are they supposed to do? Here are a few starters:

      Focus on core value-- Distribution of content

      Keep costs down. Profit is fine, but the margins should be thin enough that real piracy isn't viable. Again, focus on core value, and make an efficient, effective distribution system.

      Understand the consumer's needs--

      1. People want to be able to bring music with them on a portable device. MP3's are adequate for that from a quality standpoint.
      1. People want to be able to listen to music in the car, at home, and at work. For effective distribution, this is important... it spreads the message!
      1. People want to be able to have more than 40 minutes of music on physical media. Personally, I like having about 60 hours of music, to manage repeats and moods. Maybe "Random" isn't good for distribution effectiveness, but there are ways to improve identity.

      Understand that "renting" the content has much lower value to a consumer, and they may very well realize that they don't need what you offer as badly. DRM does actually have some interesting applications, but... it just may be too late with audio. Analog audio out and "good enough" quality really makes the digital issues obsolete. The problem for consumers with any "protection" that is provided is that it limits the effectiveness of the labels free promotion.

    • There is no reason that 90% of the artists out there should be earning more then average Joe

      well, to be fair, 90%+ of artists probably earn less than the average joe, 90% of high level music company exec's however... thats a different story (I had to beat them to death with their own shoes...)

      dave
  • It's just a matter of time till someone mods their SACD player.
  • Contradictions (Score:3, Insightful)

    by zelphi ( 622531 ) on Saturday November 09, 2002 @12:29PM (#4632313)
    In the second paragraph of the article it says "But many audiophiles are cool to the virtual padlocks, which could prove the undoing of one or both formats." WTF? Who exactly is "cool to the padlocks"? They don't give any names...

    Further down in the article it even admits that "In a recent Gartner G2 survey, 88 percent of respondents said they believed it legal to make copies of CDs for personal backup use while 77 percent felt they should be able to copy a CD for personal use in another device. "

    Regardless, if it can be played, it can be recorded. I'd like to see the look on David Migdal's face when the encryption is broken before the first disk is released...
    • Certainly the context shows that "cool" doesn't mean they like it in this case. Think of "hot, lukewarm, cool". I think they tried to get too fancy in saying that audiophiles don't like the DRM technology.
    • Not a contradiction. (Score:3, Informative)

      by autechre ( 121980 )

      It's not the same as "cool with the padlocks", i.e. willing to accept them. "...cool to the virtual padlocks..." means that they are giving the padlocks a so-so reception; they are only slightly interested in the technology because of the padlocks. Think cool as in lukewarm, not cool as in "Cool, man!"

  • by DewDude ( 537374 ) on Saturday November 09, 2002 @12:34PM (#4632334) Homepage
    "Copyright owners are entitled to use whatever formats they want to use," von Lohmann said. "If they really want to protect their content they can go back to vinyl."

    How is THAT going to stop people? It simply makes it harder to rip?

    With the proper equipment (read - PROPER) you can produce vinyl rips that are BETTER than some CD sources. Naturally the equipment is expensive, and there's always the inevatible static click or pop, but, with good digital procecssing, you can clean it up. I've done several albums off vinyl and burned them to CD with excellent results.

    Which remins the question, did the mention vinyl beecause of sound quality, or because some people look at it as lower sound quality than cassette?
    • i'm just curious, but i've heard that vinyl sounds better than CD, and it's probably true; it's an analog recording. my question is, at what point in time did the quality of (consumer, not professional) record players eclipse that of the consumer CD player w/digital out? will my dad's 1978 hi-end consumer sony (or whatever brand) record player with a new needle sound better than my 1990 cd player with digital out? it's always been my assumption that an off the shelf consumer CD player with digital out will sound better than 99 out of 100 consumer record players, and as a result, the CD actually sounds better to the majority of the population.
  • Few flaws (Score:5, Interesting)

    by nachoman ( 87476 ) on Saturday November 09, 2002 @12:35PM (#4632342)
    There are a few major flaws with all these new systems.

    - Until you can readily get SACD or watever in the music store, you won't find people jumping to sign up. Plus if there is no significant improvement over a regular CD, then people will stick with CDs. What will the price be? Will they cost more than CDs? That will certainly deter people.

    - I don't get this watermarking crap. Yes, watermark will not let you make unauthorized SACD (or insert other format here). So that just means that there will be no independent artists which can use this new format. They will be stuck with the old CDs.

    - Also, a watermark won't stop someone copying the disc, it will just stop them making a disc with the same content. Look at the Dreamcast. Why would I need the disc anyway when I can play it on my computer, on an iPod, or throw it on a regular CD.

    And they can't try and convince me that putting only Analog outputs will stop copying. Analog to digital is no big deal. Some quality will be lost but whatever people will still do this to be able to listen to their disc elsewhere.

    If it does fly, it will probably end up with way of the DVD. Great technology, but not fulfilling its purpose (ie the non-copying).
  • "None of the dozens of DVD-Audio and SACD discs examined at Virgin Megastore in San Francisco mentioned the underlying copy-protection scheme in their outer packaging."

    Game over. Would you like to try another game of pick the disc without copy-protection ?
  • From the article:

    Fred von Lohmann, an intellectual property attorney for the Electronic Frontier Foundation, says the onus will be on consumers to make sure they're aware of what they're buying.

    "Copyright owners are entitled to use whatever formats they want to use," von Lohmann said. "If they really want to protect their content they can go back to vinyl."


    What kind of snarky remark is that?! 1) This probably makes the recording industry laugh! "Sure they'll go back to vinyl." 2) I really don't think consumers want to protect their content with -that- amount of sacrifice.

    It could simply be CNN's editing, but I would have rather the EFF pointed out something like "consumers will protect their content by continuing to rip from consumer friendly formats."
  • by Karhgath ( 312043 ) on Saturday November 09, 2002 @12:38PM (#4632357)
    The RIAA is currently, and has been for quite a while, working on a new foolproof copy protection mechanism. With this system, no one will want to even try to bypass the copy protection mechanism and rip the CD, it will be futile and useless to even try.

    I was at their secret meeting on a undisclosed island in the pacific[shaped as the head of Hilary Rosen] and I was floored to hear of this new mechanism. They were working on it for many, many years, they were quite visionary. Slowly it is entering the unsuspected consumer's home even now. They call this new scheme JPCM: Just Produce Crap Music.

    No one will ever want to rip any CD anymore... Enter the complete DRM system for music!
  • by limekiller4 ( 451497 ) on Saturday November 09, 2002 @12:39PM (#4632362) Homepage
    SACD, meet DivX. DivX, meet SACD.
    • by fyonn ( 115426 )
      SACD, meet DivX. DivX, meet SACD.

      err... wtf?

      sacd is a music only format with the potential for very high quality. DivX is a video codec...

      dave
      • DivX the video rental scheme, not the codec. You know, it was a nice little "Fuck You" to the MPAA to name the most popular pirate codec (not only is it used for piracy, but it's actually pirated from another proprietary codec, MPEG4!) after a failed copy-prevention widget, but it really does get confusing.
  • Finally (Score:2, Funny)

    by Anonymous Coward
    Just what I've been waiting for, the Betamax of audio technology.
    • Most SACDs are dual layered - they will also contain the CD audio PCM track on there as well.
      That's so that the record company can press media ONCE and have it applicable to both buyers. The other advantage is that if you bought enough of these dual-mode CDs, you'll have a strong desire to get an SACD player. Good work to the marketing teams for this one!

      Oh, you can probably still rip the CD audio track, too! Haven't got an SACD disc here yet to try. The same with DVD Audio - most discs include an alternate audio track such as DTS, Dolby Digital or PCM - and you can rip that one straight through digital as it is.
  • Guess I'm lucky... (Score:2, Interesting)

    by Sebby ( 238625 )
    My Sony DAV-S500 does have digital out, as well as support for SACD.

    • My Sony DAV-S500 does have digital out, as well as support for SACD.


      well, you're not alone. virtually all sacd/dvda player have a digital out, often 2. however when you play an sacd/dvda in the players you'll find the digital out has gone strangely quiet

      dave
  • Can you say... (Score:2, Informative)

    by beldraen ( 94534 )
    MiniDisc? There really isn't issue here. Sony has always tried to release products that they reserve the right to control and then the public ignores enough for Sony drop it and try again. I think Sony keeps trying it because it appears that the Japanese are always willing to rebuy products. I guess they figure if they try enough, Americans will go along with it.
    • Actually... (Score:2, Informative)

      by Dot.Com.CEO ( 624226 )
      Minidisc had it, even though it is 10 year old technology. Digital recording? Had it. Quality? Well yes, actually. Even though audiophiles (myself NOT included) can definitely distinguish a MD recording from the original, the same goes for an mp3 rip. But, most importantly, MDs came with copy control. You could ONLY make one copy of a copyrighted album digitally. The copy of the copy was not copiable through the digital out of the MD player. Of course, there are always ways to circumvent this but they are expensive.

      MDs have the technology to solve most of the problems of the music industry without branding their customers pirates, potential or otherwise. You could make a copy of your purchased cd on minidisk, with excellent quality and you were prohibited of making copies of the same recording ad nauseum.

      Of course, it is much easier to take out all the digital outputs (an extremely stupid move on my opinion) rather than try to solve the actual problem.

    • A lot of European slashdotters will tell you that MiniDisc is alive and well on their side of the pond. <Shrug> Never having been there, I couldn't say.
  • by e.a.kendrick ( 323575 ) <<slashdot> <at> <erickendrick.com>> on Saturday November 09, 2002 @01:05PM (#4632461) Homepage
    I'm an optimist - most likely a new DVD based format for audio *will* appear, but it is unlikely to contain DRM, and the player will have to be able to play CDs. When DVD-Recorder videos become commonplace, a DVD audio recording option will just become another feature of the home entertainment centre. I can dream can't I!!!

    Feels like a slashback - but like many of you I've been following this for a while, I kept my own little list of interesting articles. Until now I've nowhere to put them, so this is as good an opportunity as any:


    Terrorism, Copyright, or hacking. Apply whatever label you want to what offends you
    It would be funny if it wasn't true:
    • Getting sued for silence [bbc.co.uk]
    • Thanks to the CBDTPA, nearly everything *must* embed DRM. This includes cockpit voice recorders, digital speed cameras, hearing aids, and big mouth billy bass [freedom-to-tinker.com]
    • Even phoning a friend can breach copyright [iafrica.com], 2 musicians copyright 100,000 phone numbers (dial tones).

    But there's hope:
    • A review of the technologies shows that it is futile to protect CDs [newscientist.com], (based on the assumption that new devices will more likely circumvent protection rather than enforce it)
    • Richard Stallman (Free Software advocate) jumps in with a cautionary tale [gnu.org]
    • And a felt tip pen [vnunet.com] can bypass some protections


    Hope you find them interesting reading. I'll go back to lurking 8)
  • I can see the Marketing Droids Just trying to finesse this. It requires a conspiracy of sorts, or maybe a change in federal law.
    • Manufacturers make players with required features, and the ability to the new formats.
    • Manufacturers phase out making old style players
    • Media Makers phase in their products, lagging slightly the makings, but maybe using a few hits to push adoption of the new format.
    Basically you finesse the adoption and push it in over time, ignoring the loud protests of the reasonably few who are in the know.

    The best example of this is Microsoft with Windows, pushing it's product into market dominance despite obvious flaws, and technically superior competitors with inferior marketing.

    Of course, this would require the cooperation of across and industry or two, which would be more difficult to do. But if enforced by fiat of law, etc. then this can be done. Witness the original founding histroy of the creation of the first networks and the very early Internet, where no body wanted to share resources on their comnputers, but were forced to if they wanted to work with the Military and the Pentagon.

  • by patiwat ( 126496 ) on Saturday November 09, 2002 @01:12PM (#4632501)
    The CNN article is full of shit.

    > Yet each format contains digital watermarks

    The SACD watermark is actually an analog watermark. The surface of the CD itself is watermarked, not the data, which is pristine.

    > Moreover, there are no digital outputs on any SACD or DVD-Audio players now available,

    The Accuphase DP-100 transport has a digital output, although it isn't a coaxial or Toslink. The Meridien reference 800 also has a digital output.

    Sure, these are high-end players. But if you want low-end digital output, just play the CD layer on the SACD, and get the digital outp of the 16b/44.1khz stream.

    > The Audible Difference in Palo Alto, California, is refusing to sell SACD or DVD-Audio players until manufacturers can ship a hybrid unit that plays both formats as well as legacy CDs in the highest quality sound available.

    Should've picked a more knowledgable or reputable dealer. The Pioneer DV-AX10 plays both SACD and DVD-A. Even low-end companies like Apex have DVD-A/SACD/MP3/CD players (AD-7701).

    - patiwat
  • So that only the proper ears hear the content you are leasing. Sort of like Bio-Macrovision

    Only way to stop piracy.. key audio/video to indivdual DNA strands, or any other way of uniquely identifying an individual person. If you arent the proper person all you hear is static or see snow..

    Yes its a joke. but its what they want.. Total control at the consumer level.

    Oh, and im going on record that *I* invented this first.. so if some company out there sees this.. and wants to use it, pay up. This product idea is not released for public use. :)
  • Sure, you can take an end-run around the whole digital protection scheme with an analog "rip", but consider these problems: 1) the DAC -> ADC process introducing resampling artifacts (probably minor), 2) PC/EMF/motherboard/HDcontroller noise while in the analog stage (quite possible), and 3) your PC will need to be VERY close to your fancy new SACD/DVD-Audio player whenever you want to "rip" (pain in the ass, but you do NOT want a long run of analog cables to your PC). High quality soundcards with an isolated analog input section can help with #2, for a price. Here's [pcavtech.com] a good site with soundcard performance benchmarks.

    This seems like a step backwards: Consumers will need to upgrade PC hardware to end up with a lower quality analog rip of more expensive music media.
  • You'll notice that there is no current method of transmitting DSD (direct stream digital) encoded data over SPDIF and there's no receiver that'll decode it. DSD is what SACD uses, not PCM.

    Even so, there is no standard for transmitting the multichannel DVD-audio signal, nor is there any method of sending 24/192khz stereo data to a receiver/preamp other than to have the audio decoded with an external unit (say, the onboard decoder on a DVD/SACD player) and then feed the discreet channels in, one by one, via a whole stack of cables going to your receiver/preamp.

    We could use a new digital interconnect standard. I know a lot of people hanging out for a new upgrade to their audiophile-grade system as a result of this.

    I should also note that FireWire sounds like an idea here - the Onkyo DS-TX989 and the Integra gear has an option to add a firewire port when they release the upgrade. Some other high end audiophile-grade manufacturers also have a similar plan.
  • So, there ar some questions that can be asked.

    1) If the industry is losing so much money to so-called pirates(estimates up to 50%), and this format is meant to stop pirates, then why doesn't the industry price these discs, and other copy protected discs, for less in an effort to encourage sales. If the industry truly loses 50% of it's sales to pirates, the price of a disc could drop 25% and, even including increased cost of the copy protection, the industry would still be making more than it is now.

    2)Is the sound quality, without digital outputs, really substantially different from a CD or vinyl record played over analog equipment. Does the lack of digital outputs in fact make these units glorified cd players for the terminally self-deluded.

    3) Is the industry going to give free replacement for damaged or lost discs. A long time ago, we customers were fed the myth of durable CD. Pretty soon we realized that although the CD was tough, it was foolish to carry original media with us where it was more easily damaged or stolen, especially as the quality decreased and the reflective layer had a tendency to peel off. So we made tapes and wondered why we paid all that money for CD in the first place when we would have just bought vinyl or tape(which could be dubbed in 10 minutes). Then, one glorious day, the technology allowed us to make a copy CD, thus justifying the price of the original media. With the new formats, we are back to the tape backup, and still have to pay the full amount for the original media. I think we deserve lifetime replacement rights, even if we do not have the original media.

  • by Anonymous Coward on Saturday November 09, 2002 @01:24PM (#4632560)
    There are intrinsic problems with SACD and DSD audio encoding. SACD is *nowhere near* refrence quality and, by design, can never achieve this. These "armies" of audiophiles who prefer SACD are the same audiophiles who pile on the vinyl rhetoric as if a needle lathing into a plastic groove was the be-all-end-all of the audio world. Vinyl does sound fantastic, but the very nature of the beast means that it cannot, nor will it ever, have the same sonic clarity that Linear-PCM can obtain.

    SACD works by taking 2.8 million SINGLE BIT SAMPLES. That means that the same is 1 or 0, friends. It modifies the sample before it. Up or down. When you're talking about an audio waveform, imagine how many bits it will take to do a full wave sweep. SACD simply cannot keep up with PCM audio. This is not like a Linux vs. FreeBSD debate. This is proven, time and time again, through rigorous analysis of DSD.

    Audiophiles tend to like the format because it "dumbs down" the sound, since DSD is incapable of reproducing the finer details, it resembles vinyl! A dithered and smoothed audio signal. DSD (SACD) relies HEAVILY on post-filtration.

    Linear PCM is the correct progression of digital audio. Each second can yield up to 192,000 samples, each with 24-bits of accuracy. Only one sample is needed to sweep. DVD-Audio supports up to 192khz sampling frequency. SACD cannot sample much above 24khz if I recall. Sony has also purposely DEGRADED the CD track on their SACD hybrid discs to FAVOR SACD. The resolution is chopped down to around 14-bits.

    DVD-Audio is a far more accurate future for digital audio. Anybody convinced that DSD/SACD is superior is living in their Clie-induced Sony hallucinatory candy land. Get with the times and get with the program. The future for audio archival will continue to be PCM.

    An excellent URL that explains the plain truth about SACD/DSD versus PCM: http://www.iar-80.com/page38.html [iar-80.com]
  • by Tokerat ( 150341 ) on Saturday November 09, 2002 @01:27PM (#4632577) Journal
    ...used to be named the "Arizona Sound Society", but no one would take them seriously.

    <rimshot>

    *ducks and runs*
  • by mesocyclone ( 80188 ) on Saturday November 09, 2002 @01:30PM (#4632590) Homepage Journal
    To take the audio output of his player, hook it to the audio input of a good sound card, produce an MP3, and put it on the P2P. For almost everyone, the sound quality would be adequate, and most people would never even know that it went through an analog step along the way.

    So much for copy protection.

  • "The watermarks must be present for the player to recognize the disc and play the content. A bootleg DVD-Audio without the watermark would fail to play". So if I record my own music and want to make a high quality disk out of it the players will act as if I don't own the copyright. This seems like the system is designed to lock out unauthorized musicians. I bet they are hoping this will superceed ordinary compact disks so that indie music will be crushed forever.
  • by ahfoo ( 223186 ) on Saturday November 09, 2002 @01:50PM (#4632687) Journal
    One thing that I find very intriguing about P2P is that works from the 1910s and 20s and early 30s are very popular. Although I'm only in my thirties, I'm a huge fan of this stuff and I never had convenient access to it before P2P. One of the reasons you never see it isn't because it's not entertaining, interesting and informative, but because there's no longer any profit in it.
    The rediscovery of our archived electronic entertainment history is a bigger challenge to the current entertainment industry than how to protect the latest warmed over reinventions of those old acts. The more I look and listen to the old media, the more astounded I am at how cyclical and repetitive the whole notion of recorded entertainment is.
    And to address the topic head on, watching and listeing to those old recordings makes you very aware that quality is extremely relative. When you're really excited about hearing something you'll get up and dance and sing along to something that sounds like hell. The question is how to make people enthusiastic and obviously the entertainment industry if failing to even attempt to address this.
    The recorded entertainment industry is like a lover who just didn't get it right one night. The consumer and the industry have been fucking for decades and then something happened and the recording industry says to the consumer --you've changed.
    The consumer is like, no way baby. I'm still the same ol' cowboy. You know, let's get it on. But the entertainment industry is pulling this, no it's not the same anymore. You used to care about quality and now you try to get it anywhere you can. It makes me feel so cheap! If you really love me you'd at least spend some money.
    And the consumer is like --what? Love you? What are you talking about? Why don't we just fuck like we always did. Nothing changed. It's the same ol deal. You say I changed, but you're the one who changed.
    So, they don't fuck no more. But this relationship is special because it's all been recorded. So, the consumer goes back and starts watching the vids from back when things started and the fucking was still good.
    Meanwhile, the recording industry joins the church and gets active in conservative politics and slowly starts developing these weird twitches.
    Fucked up scenario. I'd hate to be the cop to do a domestic call on a couple like that.
  • by Animats ( 122034 ) on Saturday November 09, 2002 @01:57PM (#4632715) Homepage
    It's not fundamentally impossible to get error-free digital data from analog outputs, although it's difficult. 56K modems essentially do this on the receive side.

    Take an analog player, and remove or bypass the final analog output filter. The output waveform should then show some artifacts from the sampling rate. Split the output, and feed one path through a notch filter for the sampling rate, then into a phase locked loop to recover the clock. Use that clock to control the sampling rate for an A/D with more bits than the D/A in the player. If you can keep the noise level low enough, and can calibrate a correction curve for the player's A/D, you can recover the original.

    To calibrate, look for low-frequency waveforms, which will allow you to see all the stairsteps from the D/A.

    This assumes classical D/A conversion, and fewer bits than the noise threshold. It's probably possible for 16-bit CD players, but not for 20-24 bits. Telephony only has 8 bits, so 56K modems have an easier job, although they have to compensate for a lousy transmission line.

  • Whats the point? (Score:2, Insightful)

    by Milikki ( 103463 )
    I tend to be an early adopter of new technologies. Bought my first CD player in 1984 for $1600....

    But I gotta ask, whats the point? Why would I want a new format to play the new noise that is passing for music? Except for compilations, I havent bought any "new" music since 1992.

    I'll stick with the Carver CD player I bought in 1988 until it breaks.

    Kevin
  • WHEN WILL THESE STUIP LAWYERS LEARN?

    SACD will be "safe" (as they call it) as long as it is kept away from computers! Once digital data is inside the computer there's no control on what the user do with it! FACT!!!

    What about all this discussion on digital convergence, TV+Stereo+Phone+Computer+Internet+etc all-in-one. Wake up man!

    Every copy protection created will be a waste of money and time, no matter what laws can be aproved in US, there's always the rest of the world!

    Create any standard they want they all have the same future, just like this dam CSS :oP

    I sick of it!

    • What about all this discussion on digital convergence, TV+Stereo+Phone+Computer+Internet+etc all-in-one. Wake up man!

      That's where the DMCA, CBDTPA/SSSCA, and whatever nonsense they think up comes in. The goal here is convergence, yes, but not into a PC. We want modular components that can be plugged into any hardware and run by any software we dream up. They want a WebTV-Phone that plays discs; a machine that gives you all the normal media capabilities of a computer, but lets you do absolutely nothing that isn't government/RIAA/MPAA approved. Nice thought, isn't it?

  • by yoink! ( 196362 ) on Saturday November 09, 2002 @02:55PM (#4632984) Homepage Journal
    begin ramble

    I got to thinking yesterday that we've nearly come full circle with audio technology. Thanks in part to the public's desire to "steal" that which is not theirs, and thanks in part to the greedy record labels who's only focus is to "steal" all they can from the public. I'm not going to go into detail on this, I'm sure you can all figure it out. What I do find rather amusing is a lack of perspective (more often than not, though this doesn't apply to everyone) on both extremes of the debate.

    What I really wanted to talk about though, is how the audio industry spent years making conumer and professional audio gear with increasing fidelity and sound quality. Mono went to stereo then surround. The recorded mediums went from records, to 8 tracks, to cassette tapes (1/8"), to CDs. Now we have SACDs and DVD-Audio. The later is simply a much higher resolution PCM format while the former is a totaly new and actually quite exciting DSD format (Direct Stream Digital.) The DSD format is supposedly (though I have never heard an SACD for myself) of such high quality that it does make a noticeable difference. What makes these formats interesting, is that if we can't provide the players with quality digital to analog converters (which can be very expensive) then the whole point of the formats is lost because the system itself can't reproduce the streams properly. A more ideal setup for our increasingly digital-only entertainment systems would be that the signal remained digital up until the speakers, at which point the self-powered speakers could handle the conversion and amplification of the signal. Analog signal degredation (noise, interference, etc. although these can be problems with digital signals too but that's another story) would only occur for a short period of time and would be negligible. It would, in fact, be less expensive to implement such a system than to start the conversion process at the player and attempt to have high-quality, RF shielded analog components, and high quality connections all the way through the system to keep the audio pristine.

    In essence, and in the end, we have both side shooting themselves in the proverbial foot. One industry (the record labels, which have several hands and a few feet in the consumer audio industry) are so terrified of ever increasing bandwidth at home, and millions of P2P users, they will stop at nothing to find a way to prevent end users from using their music with the fair rights that owning your own copy of Britney Spears' "So what if they're fake?" entitles you to.

    Of course, the really funny thing is. The majority of consumers couldn't give, as Eminem puts it, "two squirts of piss" about SACD and DVD-Audio. Much of the world is happy downloading or compiling their music in MP3 format (yes there are OGG fans out there, and sheep who are hearded into WMA) and the fact remains that MP3 is not and will never be Red Book CD-Audio quality. So if we're happy listening to music in a format that degrades stereo imaging and has increased sibilance and harmonic distortion rather than a format made popular in the late 80s, it's the record companies and consumer audio companies who will loose in the long term because their focus remains on maintaining their empires, and that is one of the wonderful things world history has taught us, those who fail to adapt to the changes of the masses are ultimately overthrown by their own lust for control. That is not to say that the companies can't phase out CDs and DVDs, in order to replace them with formats that are so restrictive one can't even use them. In the end, and like any really good story, the people will prevail. We always do. Although I can't believe I just wasted 30 minutes typing this crap on /.

    end ramble
  • by ProtoCat ( 452381 ) on Saturday November 09, 2002 @04:48PM (#4633509) Homepage
    I can't sit here and hope to convince you anything about SACD, since most of you are too busy speculating and screaming your heads off because you can't go and copy an SACD of a disc that has most likely been out in CD for quite some time. What I can do is tell you the following things and hope maybe at least one of you will actually go out and hear a high-res format sometime before posting without once even givng an honest listen to the format.

    First off, there definately are SACD/DVD-A combo players. There's quite a few of them covering the entire spectrum of how much you want to spend on gear. Personally, I think a good purchase would be the Pioneer Elite 47Ai, which also has digital outputs, another thing that article is completely wrong about. The 47Ai has, by quite a few people's accounts including my own, some of the best video output of any DVD-Video player out there, especially at its price point.

    Second off, most DVD-Audio discs *can* reach 192Khz for a sampling rate, however, most of them are released at 96Khz. Another thing is that Verance has actually changed their statement of their watermarking from being unperceptable to 'unnoticable'. That's because, well, you can actually hear it! This isn't a faint different, it actually colors the sound a bit from the original. There was a small test conducted by a person who obtained the Verance software and after doing a compare between the source and the watermarked version decided to isolate the difference between the two into a single .wav. It sounded like a poor AM radio version of the song playing, but that goes to show just how much info between the two were actually changed.

    Third, SACD can be produced by independant artists if they wish to, there's actually several mastering kits out there ranging from $5k and up that you can save up, snag, take home and master stuff to. Products like SADiE, Pyramix, Sony's own Sonoma, are all available to be purchased by anyone who wishes to produce their own SACDs. Just searching on the web for 'SACD Mastering' brings up a lot of smaller production houses willing to do it for you as well. Slowly, places capable of pressing SACDs are catching up in pace as more plants are opened and the tech gets out there.

    Also, claims about SACD not being higher than '24kHz' (when it's really around 100kHz) and the like are also rather bunk. There's a lot of people trying to test DSD by methods meant for PCM, which simply does NOT work because they are two completely alien methods of handling sound from each other with just enough in common that they both can be handled by some of the same processors. A good article found here [stereophile.com] will explain a bit more actually what's going on with DSD. There's been some people claiming that from a 'mathmatical standpoint' SACD is on par with a cassette tape (!), but even your layman doing an A->B between the two could tell you that's not the case. As a friend put it "If it measures bad, but your output is good, then you're measuring wrong".

    Lastly, the bit about the CD layers of hybrid discs not sounding as good is also a lot of bunk thrown out by groups like Warner (DVD-Audio's big pusher) whom want to scare a lot of people away. However, one thing to keep in mind, is that SACD hybrid discs are being snuck in without any such labeling as to their hybrid status on the packaging. For example, that brand new set of Rolling Stones remastered stuff in digipak packaging are all SACD hybrids. Vivendi Universal has just begun releasing hybrid discs with the possible intention of switching over to exclusively releasing hybrids in the next year or so.

    They don't cost anything more than the actual CD, and since SACD players can be snagged as low as $120 now, it's a bit easier to get into playing the the high-res layer. However, at $120, players I'd consider 'amazing' aren't many, in fact, it'd be just one that was recently discontinued. The Sony SCD-CE775 5-Disc SACD changer is one of the best players I've heard under $200, easily doing Redbook playback comparable to some $1k decks I've heard. Internally the SCD-CD775 is almost exactly the same as Sony's $450 SCD-C222ES SACD player, save its cheaper casing, slightly different power supply and a bit cheaper capacitors. If you really wish to get serious, you can have people like this guy [sacdmods.com] spend some quality time with your SCD-CD775 or a few other models of players and have him upgrade and change a lot of the parts for better sounding playback. However, I doubt that'll appeal to everyone who doesn't own at least a good set of headphones (Sennheiser HD-600s, Sony MDR-CD3000s, Grado RS-1s, Audio Technica ATH-W100s, Etymotic ER-4S, etc.)

    Also, most audiophile have been raving about some SACD players and their Redbook playback ability. I don't know about this Arizona group of '53 people' or one particular shop whom wasn't even aware of decks capable of DVD-A and SACD while also providing digital out, but you look for reviews of Sony's 'SCD-XA777ES' player and you'll find many saying it does some of the best CD playback you can possibly buy. Phillips, Denon and others are getting in on players of the same quality at comparable prices.

    In short, I've found that article to be rather a lot of FUD, and the reactions of quite a few here to be playing into that quite nicely. Personally I own both a DVD-A and SACD player and titles for both, but I rather prefer SACD after spending a bit of time on each using decent gear (Carver CM-1090 amp, custom amps, Sennheiser HD-600 headphones, etc.) I also own about 350 legitimate CDs and continue to purchase CDs on top of higher-res formats. Am I at all alarmed that my ability for backups of these newer formats are limited? No, not really. I take care of my discs and my need to back them up or play them on my PC (although the new SB Audigy 2 can play back DVD-Audio on PCs) or portable unit is pretty unnessicary. One thing I will say, is that if interest picks up enough, I'm sure a DeCSS-alike will surface and so will another hailstorm of controversy and merry fun that Slashdot readers thrive on.
  • convenience is king (Score:3, Interesting)

    by phriedom ( 561200 ) on Saturday November 09, 2002 @07:15PM (#4634247)
    It has been said before, but it bears repeating.

    I have over 1400 songs that I ripped myself from legally acquired CD's that reside in an MP3 player slightly larger than my hand. It has changed the way that I listen to music. This convenience has become the singal most important factor in my music listening. I have bought more CD's since I got my MP3 player than in the previous 7 years combined. I'm not going back. I won't go back to vinyl or tapes, and I won't move forward to a new format or copy protected product that won't let me play music the way I want to listen to it. If independant artists are the only ones who release unencumbered music, then I'll buy from them.

    By the way, if all RIAA studios switch to copy-protected CDs, does that mean we can repeal the "tax" on blank tapes and blank CD-Rs that "compensates" the major labels for the losses they will no longer be suffering?
  • by the eric conspiracy ( 20178 ) on Saturday November 09, 2002 @07:58PM (#4634460)
    I own a DVD-Audio player that has digital outputs, however I don't use them because I have a few DVD-Audios that are encoded at a 192KHz bit rate that my amp can't handle.

    DVD-Audio diske sound is audibly superior to any CD I have heard, and not just marginally; in particular the audio stage is much smoother and well-defined because of the presence of a center channel. I am less impressed by the effects of a rear channel - at least with the current state of the art. Audiphiles have long been aware of the 'hole in the middle' in a conventional stereo system - this is gone with these new formats.

    As far as copy protection, both SACD and DVD-Audio come with ripable alternative formats - SACD has a CD layer, and DVD-Audio disks have a conventional DVD format audio layer. Since it takes a good deal of stereo equipment to do justice to DVD-Audio I am currently happy with the lesser formats for my other uses - car stereo, PC playback at work, etc.

    I do agree with the article's assertion that labelling as to the copyability of DVD's, SACD's etc. is important, and should be required by law. Buyers should be making informed choices. I would also like to see some sort of requirement that fair use rights are protected (one generation copy support, for example) as part of any copyright legislation.

    Ultimately of course I expect that any copy protection scheme will be defeated - for example bootleg ROMs for SACD players could quite clearly defeat watermark requirements.

You knew the job was dangerous when you took it, Fred. -- Superchicken

Working...