ffmpeg mute specific time

[tb582]

Looking to edit a blip out of the beginning of a video/audio file...
Anyone know why this doesn't work as expected?


ffmpeg -i ~/Downloads/in.mov -vcodec copy -af volume=enable='between(t,0,3)':volume=0 ~/Downloads/out2.mov
[Parsed_volume_0 @ 0x7fa8a8d01680] [Eval @ 0x7fff5544ebe0] Missing ')' or too many args in 'between(t' [Parsed_volume_0 @ 0x7fa8a8d01680] Error when evaluating the volume expression 'between(t' [AVFilterGraph @ 0x7fa8a8d01440] Error initializing filter 'volume' with args 'between(t' Error opening filters!

[tb582]

Ah looks like putting quotes around the entire filter results in ffmpeg not throwing the error but I also get no other audio which is not intended.

ffmpeg -i ~/Downloads/in.mov -vcodec copy -af "volume=volume='between(t,0,3)':volume=0" ~/Downloads/out2.mov

[Baldrick]

Volume=volume= ?
And should't you set an acodec also?