> Just be careful for now depending on audio interfaces not specifically
> enumerated as being supported in Rivendell. Many hours can be burned if
> you stray to far from the well beaten path.
> Huh? I thought Rivendell could work with anything supported by ALSA.
Hi,
It does seem that there are some sound cards that seem to have
difficulty with Rivendell but otherwise work fine within Linux. From
what I can tell it has to do with sample rate mismatches and some cards
not detecting (or initializing to) the proper sample rate.
The few cards that I've run into like this can usually be made to work
one way or another. The most common thing that seems to fix troublesome
cards for me is to add the rate line into etc/asound.conf, like this:
pcm.rd0 {
type hw
card 0
rate 44100
}
ctl.rd0 {
type hw
card 0
rate 44100
}
And make sure that Rivendell is set to use 44100 in rdadmin (or if you
select 48000 in Rivendell, adjust the asound.conf accordingly).
Remember that each time you change any sample rate settings you'll need
to stop and start the Rivendell daemons or else it won't pick them up.
If that doesn't work for playing audio from Rivendell but you are able
to play audio through Linux without Rivendell, the second solution that
I've found which usually works is to install Jack. This isn't ideal (I
prefer straight ALSA) but it often works, especially if you're able to
play audio from other Jack enabled audio apps through Jack to the sound
card. Jack talks to the sound card, Rivendell talks to Jack. Again it
helps to have your sample rate settings in both Jack and Rivendell the
same. And make sure Jack is up and running (with all the proper
settings) before starting the Rivendell daemons.
Lorne Tyndale
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