Re: default to card other than card 0 - asoundrc

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On Wed, 7 Nov 2007, James Shatto wrote:

> I'm wondering on a couple things with asoundrc.  If I want the default alsa device to be something other than card 0, is there a simple entry I can put in asoundrc to make that happen?  I can get the cards to switch in the driver configuration in /etc/modprobe.d/ but I'd rather have something user based like the ~/.asoundrc file to make that change, if only in effect.
>
> Is there an .asoundrc entry to make the output of one soundcard clone the default card?  copy?  route?  I have several interfaces, usb when i'm mobile, pci when I'm studio bound, and onboard when the main speaker device is already being utilized.  Instead of rewiring the physical devices or manually reloading the drivers in a different configuration, or explicitely stating which card to use at the application level I'd like to just have all three cards behave as one.  At least as far as output goes.  Or otherwise be able to change the default card at the user level.  Any .asoundrc tips to make that happen?  Is it possible to do?  Can I setup up a poor mans 5.1 system chaining a couple SB16 cards together in a similar fashion?

Cannot work, because the cards run at different rates. Thus if one card is
running at 44100 and the other at 44010, by a minute, then will be 1/10 of
a second apart, and 36000 bytes apart. After an hour, they will be about 5
sec apart, so the buffers on one are overflowing if you keep up with the
faster one.


>
> Thanks.
>
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