10.6: Trim m4a audio files with QuickTime Player

Oct 15, '09 07:30:00AM

Contributed by: zongamin

I previously used Fission to trim Audio Files to the required length, but since updating to 10.6, Fission crashes when attempting to save.

I discovered that I can use the Trim feature in QuickTime Player with m4a files as well as movies, even though it appears to save the file in .mov format. First find the file you want to trim and open it in QuickTime Player. Select Edit » Trim, use the slider to trim to the required length, then press the Trim button.

Select File » Save, and save the file as a Movie. Go to Finder and replace the .mov file extension with .m4a. The file will be recognized as an m4a audio file, and can be imorted to iTunes.

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