CODEWITHSUNDEEP
audiofilterffmpegconcatenation
alex
alex

Reputation: 495

How to trim silence and concatenate two audio files using FFMPEG in one command?

I'd like to trim silence from the end of audio1.wav and beginning of audio2.wav and concatenate them by adding silence of predefined duration?

UPDATE

Following ffmpeg command add silence in between two wav files (from answer):

ffmpeg -y -i $in_wav_0 -i $in_wav_1 -filter_complex "aevalsrc=exprs=0:d=$pause[silence], [0:a] [silence] [1:a] concat=n=3:v=0:a=1[outa]" -map [outa] $out_wav

This command trims silence from the end (from answer):

ffmpeg -i input.wav -af silenceremove=1:0:-50dB input.wav

How to combine those two to commands so that concatenation would produce fixed duration silence interval in between regardless of silence present at the end and beginning of original audio files respectively? And preferably in one command.

Upvotes: 1

Views: 1920

Answers (1)

alex
alex

Reputation: 495

Command takes in_a_0.wav and in_a_1.wav as input and out.wav as output. Following command trims silence at the end and beginning from input files respectively and adds 1.5 seconds silence in between.

ffmpeg -loglevel verbose -y -i in_a_0.wav -i in_a_1.wav -filter_complex "[0:a] silenceremove=stop_periods=1:stop_duration=1:stop_threshold=-50dB [first], [1:a] silenceremove=start_periods=1:start_duration=0:start_threshold=-50dB [second],aevalsrc=exprs=0:d=1.5[silence],[first] [silence] [second] concat=n=3:v=0:a=1[outa]" -map [outa] out.wav

Upvotes: 0

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