[pulseaudio-discuss] re-mapping a sink/source module

Richard Bown richard at g8jvm.com
Mon Oct 8 10:50:31 PDT 2012


Hi ,
I tried loading the module from default.pa, but it wasn't liked, I have 4 sound
devices, I used this to load the amended alsa modules for a M-Audio D66 card:-

#!/bin/bash
Card='device_id="'
# get the ALSA card number for M-Audio D66 card
	S1=`aplay -l|grep M66|grep -v grep |awk '{print $2}'| sed 's/\:$//'`
	 if [ ! $S1 == 0 ]; then
		  echo " ALSA Card Number=" $S1;device=$Card$S1
	 fi
	  	
 	mod=`pactl list short modules| grep $device |awk '{print $1}'`; echo " pulseaudio module ="$mod
 
         if [ ! $mod == 0 ]; then  pactl unload-module $mod
                echo "Module" $mod " has been unloaded"
         else 
              echo  "no module to unload"
	         echo " maybe it worked"          
         fi
	
### Load Delta 66 hardware

pactl load-module module-alsa-sink sink_name=delta_out device=hw:M66 format=s24le channels=10 channel_map=left,right,aux0,aux1,aux2,aux3,aux4,aux5,aux6,aux7
pactl load-module module-alsa-source source_name=delta_in device=hw:M66 format=s24le channels=12 channel_map=left,right,aux0,aux1,aux2,aux3,aux4,aux5,aux6,aux7,aux8,aux9

the pactl lines are one line each with no wrapping

Now what I'd like to do is remap so the first two channel are aux0 & aux1, so
audio is routed in on aux0 and aux1 by default.

Does PA always take the first two channels no matter what, or could I do
something like 
channel_map=aux0,aux1,left,right,aux2,aux3....etc so the used channels are aux0
& aux1

Thanks
-- 
-- 
Best wishes / 73
Richard Bown

e-mail: richard at g8jvm.com  




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