On Fri, 26 Mar 2004 10:00:38 GMT Adam Funk <a24061@yahoo.com> 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. 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. > I'm still curious, however, as to why the WAVE library for XMMS is so > fussy about the exact file type. In general, because it needs to know how to convert the audio data into a PCM stream that a soundcard would know what to do with; that, in turn, means the developer of xmms has to encode that capability into xmms (or use a library that provides the needed capability). If he/she didn't, then xmms won't know what to do with the data. I am a little surprised that xmms couldn't do anything with 32-bit, when it can handle 16-bit. -c -- Chris Metzler cmetzler@speakeasy.snip-me.net (remove "snip-me." to email) "As a child I understood how to give; I have forgotten this grace since I have become civilized." - Chief Luther Standing Bear
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