sof/tools/plugin/alsaconf/50-sof.conf

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# Invoke a SOF pipeline and route it to a sound card or another plugin
# To use the PCM 0 on the SOF "volume" topology and route it to hw:1,2 then run
# aplay -Dsof:volume:0,hw,1,2
# tplg:pipe:[pipe:card:dev:config[pipe:card:dev:config]...]
#
# TPLG SOF topology configuration (mandatory)
pcm.sof {
@args [ TPLG ]
@args.TPLG {
type string
default "passthrough"
}
type sof
tplg $TPLG
hint {
show {
@func refer
name defaults.namehint.basic
}
description "SOF Topology and PCM"
}
config.48k2c16b {
rate 48000
channels 2
format S16_LE
period_time 0
period_frames 48
buffer_time 0
buffer_frames 192
}
config.16k2c16b {
rate 16000
channels 2
format S16_LE
period_time 0
period_frames 2048 # based on the period size needed for Noise suppression module
buffer_time 0
buffer_frames 8192
}
config.48k8c16b {
rate 48000
channels 8
format S16_LE
period_time 0
period_frames 1024
buffer_time 0
buffer_frames 5120
}
config.8k8c16b {
rate 8000
channels 8
format S16_LE
period_time 0
period_frames 1024
buffer_time 0
buffer_frames 5120
}
config.48k2c32b {
rate 48000
channels 2
format S32_LE
period_time 0
period_frames 6000
buffer_time 0
buffer_frames 24000
}
}
ctl.sof {
@args [ TPLG ]
@args.TPLG {
type string
default "passthrough"
}
type sof
tplg $TPLG
hint {
show {
@func refer
name defaults.namehint.basic
}
description "SOF Topology"
}
}