-delay duration

Delay to pause after level felt down threshold (default 1s).

-fall float

Level EMA fall speed (default 0.0005).

-log-interval duration

Current level EMA value logging interval (default 1s).

-multiply float

Multiply level (default 1).

-power float

Power level (default 1).

-rise float

Level EMA rise speed (default 0.9).

-threshold float

Level threshold to pause (default 0.007).

Two positional parameters are input and output wav-files respectfully. Two optional positional parameters are the input and output wav-files, respectively (both may be omitted or replaced with - to use standard IO).

arecord -f FLOAT_LE -r 22050 -c 1 | nosilence --threshold 0.03 - - | ffmpeg -f wav -i pipe: -codec:a libmp3lame -b:a 96k -f mp3 rec.mp3