Sox: splitting audio on silence but leaving tails

sox

I love how sox has the ability to split an audio file on silence. The issue I'm haivng is that occasionally my audio tracks end with fadeouts, or notes decaying into reverb (subtle sounds that sox will mistake for silence). I'm trying to adjust the sox command to split the tracks on silence, but LEAVE a LITTLE silence after each split.
I can't figure out exactly how to do it. here's the command I have so far:

sox in.wav out.wav silence 1 2 0.5% 1 4.0 0.9% : newfile : restart

Any help with this would be greatly appreciated!

Best Answer

To add some silence, you need a chunk of silence and append it to your file

sox -n -r 44100 -c 2 silence.wav trim 0.0 3.0

and

sox filetopad.mp3 silence.wav output.wav

as described Padding an audio file with silence using sox.

Related Solutions

Sox – End Recording When Silence is Detected

Remove the negative sign from your original command:

rec /tmp/recording.flac rate 32k silence 1 0.1 3% 1 3.0 3%

When the "below count" is negative, the silence command will trim all silences from the middle of the file. When it's positive, it trims silence from the end of the file.

Shell – Remove silence from audio files while leaving gaps

The best way that I've seen is by adding the -l flag to silence as follows:

sox in.wav out6.wav silence -l 1 0.1 1% -1 2.0 1%

I've copied this command from Example 6 of this very useful blog post called The Sox of Silence

Best Answer

Related Solutions

Sox – End Recording When Silence is Detected

Shell – Remove silence from audio files while leaving gaps

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