Record what you hear with pulseaudio attachment
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Last update
2019-07-22
2019
07-22
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# identify your speakers monitor
pacmd list-sources | grep "name.*monitor"

# record audio to RAW WAV file
parec --format=s24le -d alsa_output.pci-xxxx_yy_zz.w.analog-stereo.monitor raw.wav

# encode output with opus
opusenc --raw --raw-bits 24 --raw-rate 44100 --bitrate 24 raw.wav out.opus

See attached script for a pipe-file solution that integrates above commands.


Source: askubuntu.com