Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!ucsd!qualcom.qualcomm.com!cancun.qualcomm.com!rdippold From: rdippold@cancun.qualcomm.com (Ron Dippold) Newsgroups: comp.compression Subject: Re: Sound compression Keywords: sound compression Message-ID: <1991May24.185215.23994@qualcomm.com> Date: 24 May 91 18:52:15 GMT References: <105539@sgi.sgi.com> <1991May23.123202.18335@cc.tut.fi> <1991May23.215341.7836@nntp-server.caltech.edu> Sender: news@qualcomm.com Organization: Qualcomm, Inc., San Diego, CA Lines: 16 Nntp-Posting-Host: cancun.qualcomm.com In article <1991May23.215341.7836@nntp-server.caltech.edu> madler@nntp-server.caltech.edu (Mark Adler) writes: > >Just thought I'd throw into this thread that Sony has announced a 2.5 inch >CD format that puts 74 minutes of music in about 175M using 5:1 compression. >They are using psychoacoustic techniques, which means they are throwing >away subband information that it masked by other subband information based >on experiments with human frequency masking. It will be interesting to >see the audiophile reaction to this. I'm not an audiophile, but the general consensus seems to be that it's not as good as CDs, but definitely at least tape quality. Plus you can bang that thing around all you want without making it skip. -- Standard disclaimer applies, you legalistic hacks. | Ron Dippold