Tim,
The issues I've run into with USB-based audio are:
1. If there is an onboard audio card, sometimes I have to disable it in
the system BIOS
2. If using just straight ALSA then in the /etc/asound.conf file I have
to manually add a rate line to set the sample rate. So it might look
something like this:
pcm.rd0 {
type hw
card 0
device 0
rate 48000
}
ctl.rd0 {
type hw
card 0
}
Of course the device and such will need to point to whatever your USB
audio shows up as.
3. If I'm using Jack, then for most USB audio I find that I have to add
the -S option for the alsa back end to force it to configure the card
for 16 bit samples. Note the "S" has to be capital (the lower case s
does something different)
Also on CentOS / the appliance DVD with the default setup caed and jackd
end up running as different users. In order for jackd and caed to talk
to each other they need to run under the same user id. Depending on how
things are starting up this may be creating difficulties there.
One thought - see if you can even get Jack to work with the sound card.
Make sure that caed is not running and start up your jack server, then
use something simple like jack.play to try and play one of your audio
files (if you've used PCM as your audio library then jack.play can play
any of the files in /var/snd). You'll have to manually connect the
client to your output in the jack connections, but at least it'll tell
you if you 're even getting audio out. If you can get audio to play
with something simple, but Rivendell still won't see Jack, then it is
likely that the daemons and jackd are running under different users.
Lorne Tyndale
>
> Greetings,
>
> Unless someone can offer a solution I guess I'm going to have to stay on
> Ubuntu.
> I have tried for hours to get centos 6 to recognize my USB audio interface
> to no avail.
>
> Works without hesitation on Ubuntu and Debian both in alsa and with Jack.
>
>
> In centos
>
> Alsa says it's there.
> Jack says it's there
>
> Neither will use it, nor will rivendell.
>
> Just pulled the last batch of hair.
>
> Cheers
>
> Tim Camp
> WZEW<hr>_______________________________________________
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> [email protected]
> http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev
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