how can i capture the data that my soundcard produces when it makes sounds?
e.g i run an mpeg decoder, whilst it's playing i have some other program
(that i'm trying to write) that captures this data (what device, etc?) and
writes it to a file (actually it'll send it out a serial port, but that's
later on).
i have an idea that i need to read some device file, but which one?
i think if i read /dev/dsp whilst the sound is being played it will contain
what the soundcard is currently playing (i tried it by :
cat some_wav > /dev/dsp > temp.wav,
bwavplay temp.wav
and it sounded the same)
is that right?
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