I have been wondering whether it is possible with Alsa to record the audio output from some device. I found hints about the "copy"
plugin or the route_policy copy in the .asoundrc, e.g. on this page: http://www.everything2.com/index.pl?node_id=1310145
Look at the bottom of that page,
pcm.copy {
type plug
slave {
pcm hw
}
route_policy copy
}
Then:
arecord -t wav -D copy target.wav
Just as on this page this *does not work* for me. Does anyone know why?
Also, a nice idea was the audio pipe:
http://freshmeat.net/projects/maudio/?topic_id=115%2C143%2C119
This kernel module creates 2 dsp devices, the input for one being the
output for the other. But is written for kernel 2.4 only.
Something like this would be neat in 2.6 and/or Alsa. Is it possible?
thanks,
hans
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