Hi, I'm using the audioinjector octocard on a R Pi 3, and I have a problem where the system default dmix (dmix:0,0) plays just fine (via aplay), but my own defined dmix device occasionally stops streaming with a xrun condition:
Status(R/W):
state : RUNNING
trigger_time: 13953.124684
tstamp : 13953.143017
delay : -40232
avail : 2109
avail_max : 2109
aplay: xrun:1624: read/write error, state = RUNNING
Granted, the default dmix has a period size of 1024 and 16 periods, but my own device has only 2 periods:
pcm.octomix {
type dmix
ipc_key 321456 # any unique value
ipc_key_add_uid true
slave {
pcm "hw:0"
format S32_LE
rate 48000
channels 8
period_time 0
period_size 1024
periods 2
}
}
The reason is that for my project I need to have as low a latency as possible in the dmix chain. Is there any other plugin doing the same thing as dmix... but working ? 😊
Regards
/R
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