Re: [OT] full-duplex sound recording?
> Same here. The other day I was playing around with this and to my surprise
> I discovered that you couldn't select pcm as recording device (only mic,
> line and cd). Probably a driver thing. I was thinking of putting in a
> second sound card. Anyone experience with that?
>
My current line of attack makes the assumption that the OSS/Free driver
included with my kernel does not support full-duplex operation on
the sb awe 64. The latest commercial OSS driver advertises this feature,
so I tried installing the demo version, but this failed completely as
their install script seems to consider Debian too nonstandard to be worth
supporting. So my next, and possibly only remaining, option is ALSA.
I've compiled the latest drivers, libs, and utils source from alsa-project.org,
but I haven't successfully configured the drivers yet. There is a tool
called alsaconf, available from Debian, which puts some stuff in
/etc/modutils; unfortunately it did not detect my soundcard
(something about a missing module snd-detect), and adding it manually
didn't work. The fact that my card is isapnp (and that I've also got an isapnp
ethernet card) probably doesn't help. ALSA has its own isapnp support,
then there is isapnptools, so that alone makes three possible choices.
Alsa advertises full-duplex support, and snd checks for ALSA at compile time,
so I'm hoping that the two together will allow me to record in full-duplex.
(Maybe the pcm button you mention above will become enabled once the ALSA
driver is used, for example.)
-chris
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