- Make whatever is sent to the radio speaker go the USB audio device as well, regardless of what it is
- arecord -D "plughw:CARD=Loopback,DEV=1" -f cd | aplay -D "plughw:CARD=II,DEV=0? //works from terminal command line, reduced gain due to fixed gain sent to loopback interface, slightly better quality audio than from the speaker with the -f cd parameters added
Hey Paul,
Try this.. I am using a USB sound card on my sBitx64bit and was able to amplify the receive audio using sox..?
sudo apt-get install sox
arecord -D "plughw:CARD=Loopback,DEV=1" -f cd | sox -v 50.0 -t wav - -t wav - | aplay -D "plughw:CARD=5,DEV=0"
sox-v is the volume amplification level that you can adjust.
I was not able to get the USB mic input routing working yet..
-JJ
