greetings,
so here I am, using alsa-0.9.0beta8a, and a digi96/pst
I just recently started using the adat interface of the card,
(in windows everything is working fine) and for initially test
it, i just ran aplay on a couple of wav files on devices
defined as such:
<extract of .asoundrc>
pcm.adat {
type hw
card "digi96"
device 1
}
pcm.adat12 {
type plug
slave.pcm adat
ttable.0.0 1
ttable.1.1 1
}
pcm.adat34 {
type plug
slave.pcm adat
ttable.0.2 1
ttable.1.3 1
}
...
</extract of .asoundrc>
Now the problem:
.The adat channels receive and play the intended sound with some
added noise; which sounds like regular clicks of random amplitudes.
.This noise is very present on the channels 1+2, less so in
channels 3+4, and so forth. It seems the clicks are merely
decreasing in frequency the further the channel is from 1+2
.testing with alsaplayer, it seemed that the clicks-frequency was
inversely proportional to the given period size
(Normal S/pdif output is working well)
---
Now a question, is it possible with alsa to create fake pcm devices
that would be individually routed to the adat channels. (If i wanted for
example to run 4 applications at the same time, each given a separate set
of adat channels to write to)
pcm { type share or pcm { type multi seemed like they were addressing
a similar problem to that, but i have been unable to decipher the syntax
-Nicolas L�veill�
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