Hi,
Been working on this project off and on.
I’m running plexamp on a pi 3B+ along with an FM transmitter (application running inside the pi). I didn’t know how to redirect the plexamp output directly to the fm transmitter, so I cheated. I got a usb DAC, and plugged an aux cord from the headphone jack to mic jack. perfect everything worked. whole house covered. end of story…Or so I thought.
Come to find all mic jacks are mono. so it was cutting my stereo audio in half.
I bought a DAC ADC board, that has a stereo input, but I think it creates too much “noise” for my fm transmitter (not part of this discussion, just some background).
Question: Is there a way to redirect the plexamp output to something that I can pickup with arecord? This would solve my problem entirely without messing with DAC’s/ADC’s
My current implementation of the FM transmitter:
arecord -fS16_LE -r 44100 -Dplughw:1,0 -c 2 - | sudo /opt/PiFmRds/src/pi_fm_rds -freq 87.5 -ppm 1000000 -audio -
