ffmpeg
Table of Contents
1. Convert all audio to mp3
CREATED:
for i in *.webm; do ffmpeg -i "$i" "${i%.*}.mp3"; done
2. Extract clip from audio file
ffmpeg -i input-file.webm -ss 00:31:04 -to 00:31:45 -c copy clip-output.webm
3. Remove audio from video
ffmpeg -i $input_file -c copy -an $output_file