Hi Takashi, hi all,
I have a problem of too much latency using from C the "default:n"
devices under ALSA (if I understood correctly, this is because the
"default:n" devices uses dmix and dsnoop, and I need dmix and dsnoop,
but dmix and dsnoop have a fixed period_time=125000).
I was able to solve this problem with an asound.conf, specifying the
period_time in both the dmix and dsnoop that constitute the asym that
I made the default.
There is a way to do the same from the command line, in a way similar to:
aplay -D"plug:'dmix:RATE=44100'"
Also (and maybe better), there is a way to "build" a device similar to
the one builded by this asound.conf from the C api?
Any help very much appreciated ;)
Giovanni
My sample asound.conf:
pcm.dmixed {
ipc_key 1025
type dmix
slave {
pcm "hw:0"
period_time 20000
}
}
pcm.dsnooped {
ipc_key 1027
type dsnoop
slave {
pcm "hw:0"
period_time 20000
}
}
pcm.asymed {
type asym
playback.pcm "dmixed"
capture.pcm "dsnooped"
}
pcm.!default {
type plug
slave.pcm "asymed"
}
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