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- # ------------------------------------------------------
- # hardware 0,0 : used for ALSA playback
- pcm.loophw00 {
- type hw
- card Loopback
- device 0
- subdevice 0
- format S32_LE
- rate 48000
- }
- # ------------------------------------------------------
- # playback PCM device: using loopback subdevice 0,0
- # Don't use a buffer size that is too small. Some apps
- # won't like it and it will sound crappy
- pcm.amix {
- type dmix
- ipc_key 219345
- slave {
- pcm loophw00
- period_size 4096
- periods 2
- }
- }
- # ------------------------------------------------------
- # software volume
- pcm.asoftvol {
- type softvol
- slave.pcm "amix"
- control { name PCM }
- min_dB -51.0
- max_dB 0.0
- }
- # ------------------------------------------------------
- # for jack alsa_in: looped-back signal at other ends
- pcm.cloop {
- type hw
- card Loopback
- device 1
- subdevice 0
- format S32_LE
- rate 48000
- }
- # ======================================================
- # ------------------------------------------------------
- # hardware 0,1 : used for ALSA capture
- pcm.loophw01 {
- type hw
- card Loopback
- device 0
- subdevice 1
- format S32_LE
- rate 48000
- }
- # ------------------------------------------------------
- # for jack alsa_out: looped-back signal at other end
- pcm.ploop {
- type hw
- card Loopback
- device 1
- subdevice 1
- format S32_LE
- rate 48000
- }
- # ======================================================
- # ------------------------------------------------------
- # duplex device combining our PCM devices defined above
- pcm.aduplex {
- type asym
- playback.pcm "asoftvol"
- capture.pcm "loophw01"
- }
- # ------------------------------------------------------
- # default device
- pcm.!default {
- type plug
- slave.pcm aduplex
- hint {
- show on
- description "Duplex Loopback"
- }
- }
- # ------------------------------------------------------
- # default device
- pcm.card0 {
- type plug
- slave.pcm aduplex
- hint {
- show on
- description "Duplex Loopback"
- }
- }
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