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Re: Some sox questions.

On Friday 26 March 2004 14:50, Chris Metzler wrote:

>> Some other WAVE files that XMMS won't play are described thus:
>> RIFF (little-endian) data, WAVE audio, ITU G.711 A-law, mono 8000 Hz
>> But they can be converted to usable version:
>> sox foo.wav -w foo-w.wav
> Right.  8000Hz A-law and u-law (.au) files are (were?) intended for
> use in
> digital telephony applications.  You saw them all the time 10 or 15
> years ago (u-law especially on Sun boxes), and I guess some
> applications
> still use them; but not many create them anymore.  It's not WAVE
> audio in the way most people refer to ".wav" files these days.

That makes sense.  Those A-law files are being in a telephony-related
research project.

> xmms' documentation (in /usr/share/doc/xmms/) states what file formats
> it supports:
> } 5.1 Supported File formats
> } -------------------------
> }
> } OGG Vorbis
> } MP2 and MP3 streams
> } WAV/AU samples
> . . .which tells me that A-law support wasn't put in.

Well, if you hadn't told me that, I would have expected "WAV/AU samples"
to include the file above with "WAVE audio" in the file output!


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