by Marcu » Sun, 26 Sep 1999 04:00:00
This however doesn't seem to be the case. It doesn't work. Any ideas?
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// talos / AINT
// www: http://www.algonet.se/~talos
by Erik de Castro Lop » Mon, 27 Sep 1999 04:00:00
> Hi, I can do: cat file.au > /dev/audio on my debian linux box. So I
> thought that since cat just well.. cats a file maybe I can:
> 1) open the .au file
> 2) parse it to memory
> 3) send it to /dev/audio
Erik
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"... the industrial-capitalist mode of software production
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by Marcu » Mon, 27 Sep 1999 04:00:00
> > Hi, I can do: cat file.au > /dev/audio on my debian linux box. So I
> > thought that since cat just well.. cats a file maybe I can:
> > 1) open the .au file
> > 2) parse it to memory
> > 3) send it to /dev/audio
> Yes, this is possible. Whats the question?
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// talos / AINT
// www: http://www.algonet.se/~talos
1. How to play .au files (reliably)
Hi,
This must be a FAQ but I haven't seen it anywhere and I've checked
the new Sound HOWTO. I'm trying to play sun .au files. There is no problem
playing files sampled at 8000Hz, mono - I can just cat them to /dev/audio.
The problem is that I want to play .au files which have different sampling
frequencies, nos of channels, etc (this is going to support Mosiac so it
could get anything - hopefully most people who put up pages use .au format
for any bits of sound). I have got the Sox 7 utility from Sunsite and the
vplay utility from the snd-util package. The only way I can reliably play
.au files is to do the following pipe:
sox -t au - -t ub -r 44000 - | vplay -s 44000
(The o/p from Mosaic is piped to this)
Apart from being a terrible kludge, the conversion adds noise to 8kHz
samples. I have read the sox7.readme file, creating the sym-link from
/dev/dsp.sbdsp to /dev/dsp and then using sox <filename> /dev/dsp.sbdsp
appears to play files sampled at 22050kHz back at 44kHz.
Am I just being stupid and there's a really easy way to do it?
Oh, I'm running a 0.99pl15b kernel with a Sound Blaster 16. Every
thing else woks wonderfully, vplay will play wavs, etc with no problem, I
just can't play non 8000 Hz .au files!
Thanks in advance for your help,
Dale.
--
***************************************************************************
* Dale Shuttleworth *
* Dept of Elec Eng, Brunel University, Uxbridge, UB8 3PH, UK *
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