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Article #60Re: Multiplexing and Compressing Audio????
From: William Alves
Date: Mon, 02 Nov 1992 20:51
Date: Mon, 02 Nov 1992 20:51
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In article <Bx38sr.H3r@spock.dis.cccd.edu> maurices@spock.dis.cccd.edu (Maurice Shihadi) writes: >I have an interest in the above topic and would like some possible >bibliographical references from Journal Periodicals or other current >cutting edge sources.... I don't know of any lossless audio compression algorithms that will gain you anything more than about a 5% or so compression (that is, 1.05:1 ratio). There are plenty of lo-fi lossy compression techniques: delta modulation, mu-law encoding, linear prediction, etc. The only hi-fi compression technique that I have heard of is the new PASC algorithm developed by Phillips for use on their digital compact cassette (DCC). It, too, is lossy, but it acheives a 4:1 compression ratio that is (according to the writers I've read) almost indistinguishable from compact disc audio. The details are in Ken Pohlmann's "Insider Audio" column in Mix magazine for March and April 1992. Bill Alves
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Path: arc1-ca.pugleaf.net!sparky!uunet!gumby!wupost!usc!usc!not-for-mail From: alves@calvin.usc.edu (William Alves) Newsgroups: comp.multimedia Subject: Re: Multiplexing and Compressing Audio???? Date: 2 Nov 1992 12:51:30 -0800 Organization: University of Southern California, Los Angeles, CA Lines: 17 Message-ID: <1d44ciINNa4s@calvin.usc.edu> References: <Bx38sr.H3r@spock.dis.cccd.edu> NNTP-Posting-Host: calvin.usc.edu