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Article #1908

Format of .AU Sound files

#1908
From: christos
Date: Thu, 31 Dec 1992 02:18
17 lines
1117 bytes
Hello there,

	I am using the Public Domain program Sound Tools on the Sun station to record
speech. The speech samples are saved in a mu-law 8bits/sample encoding rule with a 
standard ".au" header precceding the data. What I would like to know is what the 
format of the speech samples is? In other words, I am reading the bytes that 
correspond to 8-bit speech samples but I don't know whether they are in signed
binary format(2's complement) or unsigned binary format or anyother format. I have
tried both binary signed (2' complement) and unsigned but it doesn't work. Does
anybody know how the samples are stored?

	I would appreciate any relevant response.


Thanks,
Internet Address: rsl11@kuhub.cc.ukans.edu
Bitnet Address: rsl11@ukanvm.bitnet
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Message-ID: <1992Dec30.201851.45991@kuhub.cc.ukans.edu>
Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!moe.ksu.ksu.edu!kuhub.cc.ukans.edu!christos

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Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!moe.ksu.ksu.edu!kuhub.cc.ukans.edu!christos
From: christos@kuhub.cc.ukans.edu
Newsgroups: comp.dsp
Subject: Format of .AU Sound files
Message-ID: <1992Dec30.201851.45991@kuhub.cc.ukans.edu>
Date: 30 Dec 92 20:18:51 CST
Organization: University of Kansas Academic Computing Services
Lines: 17