I am trying to get audio to LedFx, a controller for sound reactive LEDs. One of the ways it can read audio through its docker container is through a named pipe. The command
ffmpeg -y -i http://wms-15.streamsrus.com:11630 -f u16le -acodec pcm_s16le -ac 2 -ar 44100 ~/audio/stream is able to play audio into the container, but for some reason, every
arecord command that I use to capture system audio doesn't work.
I am on Raspbian Lite, and I've changed my soundcard from the audio jack output to a USB dac output by setting this in
defaults.ctl.card 1 defaults.pcm.card 1
I am recieving audio from bluetooth with the
rpi-audio-reciever project, and everything is working properly and playing on my DAC. How can I route this audio to my LEDs too?