extractaud

Script courtesy of Andrei Amatuni; Last updated: March 2017

A script for pulling out the audio stream from video files.

usage

all the audio, all the files

To pull out all the audio from all the files in a directory:

$: python  extractaudio.py  input_directory  output_directory

specific timestamps, specified files

If you only want to pull out specified timestamps within a video file, pass in a csv file with filenames/onset_ms/offset_ms timestamps:

$ python extract_audio.py  timestamps.csv  output_directory

The csv file should be in this form:

filepath	onset_ms	offset_ms
input/01_06_video.mp4	13292	18983
input/09_08_video.mp4	25292	41983
input/15_12_video.mp4	71222	103951

You will end up with .wav files in the output directory, named after the original video it came from, with the timestamps included in the filename.

dependencies

This script depends on FFmpeg, which you can get here. Make sure the binary is somewhere in your $PATH.