.m4a support

[mogwai]

Working with the VoxCeleb2 Dataset which encodes audio in the m4a format I've not been able to use the library to load the files.

formats: no handler for file extension `m4a'
Segmentation fault (core dumped)

I tried using ffpemg to convert to a aac file ffmpeg -i in.m4a -c:a copy out.aac and got the same error

formats: no handler for file extension `aac'
Segmentation fault (core dumped)

[hagenw]

At the moment you need to convert them to WAV, e.g.

ffmpeg -i in.m4a out.wav

[mogwai]

A script to do this for all files in the directory recursively

#!/bin/bash
  
for i in $(find . -type f); do
    ext="${i##*.}"
    if [[ $ext = m4a ]]
    then
        p=${i%".m4a"}
        echo $i 
        ffmpeg -v 0  -i $i $p'.wav' </dev/null > /dev/null 2>&1 &
    fi
done

[vincentqb]

cc @mravanelli

[MagedSaeed]

Thanks, @mogwai for your helpful code snippet. Can it be extended to convert any non .wav, not only m4a, to wav?

[MagedSaeed]

hope this will work

#!/bin/bash
  
for i in $(find dataset -type f); do
    ext="${i##*.}"
    if [[ $ext != wav ]]
    then
        p=${i% $ext}
        echo $i 
        echo $p
        ffmpeg -v 0  -i $i $p'.wav' </dev/null > /dev/null 2>&1 &
    fi
done

[MagedSaeed]

In Python, I used this:

from pydub import AudioSegment
for file_path list_of_file_paths:
  audio = AudioSegment.from_file(file_path)
  audio.export('dest_path', format='wav')

Of course, you have to have pydub package installed.