Subject: Re: [linux-audio-user] Dual Soundcard Woes
From: Clemens Ladisch (clemens_AT_ladisch.de)
Date: Tue Aug 26 2003 - 13:56:33 EEST
Peter Hutnick wrote:
> I have a "VIA Technologies, Inc. VT82C686 AC97 Audio Controller (rev 80)."
> [...]
> I also have a "Burr-Brown Japan PCM2702"
> [...]
> My first problem is that the USB device seems to be /dev/dsp and the sound
> card (actually on board audio) is /dev/dsp1. I'd like this to be the
> other way around. There is no entry in /etc/modules.conf for the USB
> device . . . my first instinct was to just switch them around there.
The USB drivers get loaded before the sound drivers. You'd have to
modify your init scripts. Or try something like
"pre-install audio viaxxxx".
The recommended solution is, of course, to use ALSA:
alias snd-card-0 snd-via82xx
alias snd-card-1 snd-usb-audio
options snd-via82xx index=0
options snd-usb-audio index=1
> The other thing is that control over which device gets used seem to be
> flakey. For instance the motv -C switch seems to do nothing. [...]
Just use Alsa.
> PS: I suspect someone will suggest "Just use Alsa." but there doesn't seem
> to be an Alsa driver for the USB device.
If it works with audio, it will work with snd-usb-audio, too.
(ALSA's soundcard matrix hasn't been maintained lately.)
> PPS: Anyone know of any good "CD Player" app that supports CDDA? I'd like
> to be able to use my CDROM->USB->Home Stereo.
This depends of your definition of "good". I often work in the
console, without X, so I have a script that pipes the output of
cdda2wav into aplay. :-)
HTH
Clemens
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