Before people jump on Steven for the negativity of his post. Remember, he is the Squeak sound guy.
Musicians *in general* have better hearing than the rest of us. They can hear things us no-earplug-wearing-mowing-our yard-for-X-years can hear.
Though the DVD stuff sound interesting, I doubt we could get Macrovision to let us put their encryption algorithms into Open Source. There are many unencrypted discs however.
adam hill...
(I am still recovering from a 16 bit/44kHz Vs 24/96 argument)
"MPEG3 MP3 (MPEG Layer 3) is a method of compressing audio samples with minimal loss of quality, in fact compression of up to 12:1 is
possible with
no loss of quality.
This is hogwash marketing drivel from the MPEG committee. MP3 sounds marginally better than RealAudio compression. Anyone with working ears and headphones costing more than $3 can easily tell the difference between MPs and even a cheaps**t sound card.
PPS> On a related subject, has anyone looked into Squeak and
DVD support?
DVD (digital versatile disk, or digital video disk) promises to
combine new
compression techniques for both audio and video signals [...]
DVD can store over a dozen format, but most of them will be decoded by the player or very low-level software. I'm not sure of the value of writing this stuff in Squeak.
-- stp
Stephen Travis Pope | stp@create.ucsb.edu | http://www.create.ucsb.edu/~stp
Adam Hill wrote:
Before people jump on Steven for the negativity of his post. Remember, he is the Squeak sound guy.
Musicians *in general* have better hearing than the rest of us. They can hear things us no-earplug-wearing-mowing-our yard-for-X-years can hear.
As one of the "tin-eared" (I wear a hearing aid in my right ear), I have to agree that there is more on heaven and earth than I can hear; nvertheless, even I can hear some of the artifacts in compressed audio. As a one-time video production professional, and developer of computer graphics and video systems, I would like to point out that MPEG video compression techniques have similar problems. You just cannot get that kind of compression without losing some quality (that's why they call it "lossy").
Of course, broadcast video, where we get most of the technology, has been a continual tradeoff battle from the get-go. System designers have attempted to play off the strengths and weaknesses of various encoding schemes against the trengths and weaknesses of the human visual system (clearly there's a lot more room for maneuvering with vision than with hearing: more dimensions, greater tolerance for nonlinearity). But the artifacts are still objectionable to someone who wants to have the visual quality of film. ----------------------------------------------------------------------------- Engineering is never having to say you're finished. ----------------------------------------------------------------------------- Bruce Cohen, | email: cohenb@gemstone.com GemStone Systems, Inc. | phone: (503)533-3602 20575 NW Von Neumann Drive | fax: (503)629-8556 Beaverton, OR USA 97006 | web: http://www.gemstone.com
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