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From: dce@smsc.sony.com (David Elliott)
Newsgroups: comp.compression,alt.comp.compression
Subject: Re: Compression of 16-bit sound files.
Message-ID: <1991Apr21.163913.2249@smsc.sony.com>
Date: 21 Apr 91 16:39:13 GMT
References: <1991Apr17.140822.23647@thebox.rain.com> <D88-JWA.91Apr20210702@byse.nada.kth.se> <1991Apr21.002203.4414@nntp-server.caltech.edu>
Organization: Sony Microsystems Corp, San Jose, CA
Lines: 7

In article <1991Apr21.002203.4414@nntp-server.caltech.edu> madler@nntp-server.caltech.edu (Mark Adler) writes:
>However, they could have done a lossless compression, using differential
>methods, and gotten about twice the time (well over two hours) on a CD.

Are you sure about that?  Can you do lossless compression of sound in
general with differential methods?  How do you handle big zero-crossings
of fairly high-frequency square-ish waves efficiently?