Motivation:
You have downloaded some M4A audio files.
You want to extract convert them to WAV files to listen to them in other devices that do not support playing M4A files.
Procedure:
- In the Music app on your Mac, choose Music > Preferences, then click Files.
- Copy the path of Music Media folder location. (An example path is Macintosh HD/Users/admin/Music/Music/Media.)
- Click the Import Settings… button.
- In the Import Using pop-up menu, set Import Using = Wav Encoder, then click OK to save the settings.
- Drag M4A files to the Music app.
- Select songs in your library, then click File > Convert > Create WAV Version.
- Go to your library folder (i.e. the Music Media folder location) and copy the WAV files to other devices.
- Delete the M4A files from your library.
Motivation:
You have downloaded some MP4 or MKV video files.
You want to extract audio parts so that you could copy them to your iPhone to listen to them while turning off the display of your phone.
Procedure:
- Download this portable application to your Windows.
- Unzip the files to a location.
- Open Mp4ToMp3_64.exe.
- Click on the Add files button to add MP4 or MKV files to the application.
- If you want to extract the original audio (for example the M4A format) then select Try extract original audio stream option below the Audio section on the right panel.
- Click the Convert button.
- Copy the MP3 or M4A files to your phone.
This procedure can be used for extracting audio from M4B (Apple audiobook file format) file to M4A or MP3 file too.
Software development and software engineering research