Audio normalization with ffmpeg using loudnorm (ebur128) filter

Source: https://developers.google.com/actions/tools/audio-loudness Source: http://k.ylo.ph/2016/04/04/loudnorm.html (Credits: k@ylo.ph | Source discovered by Mulvya)   ./ffmpeg -i /path/to/input.wav -af loudnorm=I=-16:TP=-1.5:LRA=11:print_format=summary -f null – This instructs FFmpeg to measure the audio values of your media file without creating an output file. You will get a series of values presented as follows: Input Integrated:    -27.2 LUFS Input True Peak: […]

LIQUIDSOAP | output.alsa stuttering

Use output.alsa in unbuffered mode. To prevent scratching sounds on start (sound devices buffer is not empty on start) do system(“aplay -d 1 -q silence.wav”) at the beginning of your script. It replaces the buffer remnants witch silence.