Well, after asking the list how to extract audio from mp4 video files I slapped myself for only looking for an app solution and looked closer to home and what do you know, ML can do the job for me. I followed the below instructions but did a batch conversion which worked exactly the same even though the instructions only mention single file conversion. Hope this helps anyone wanting to do what I wanted to do.
Many thanks. Danny. http://www.iskysoft.com/convert-audio/extract-audio-from-video.html#part1 Extract Audio from Video Directly in Mac OS X Lion Part 1: Extract M4A audio from video in MPG, M4V, MP4 and MOV (Mountain Lion included) If you own Mac OS X Mountain Lion, you will find that it is easy to process Mac audio extraction. This latest Mac system comes with the ability allowing you to extract audio from video. The Finder on it has the new built-in feature of media encoding, which enables you to do the extraction simply. However, it does not mean that you are able to extract audio from every video file. You only can extract audio from video in MP4, MPG, M4V and MOV format. And the audio extracted from video only can be saved in M4A files with 256kbps. Directly convert video to audio track on your Mac OS X Mountain Lion: Right click the video icon you would like to convert; In the pop-up menu, click "Encode Selected Video Files" option at the bottom; Then you will go to the "Encode Media" window. In Setting tab, select "Audio Only" option; Do not click the "Same as source file" option and set a destination to save the output audio. Last, Click "Continue" to start to extract audio from video; After that, you will get the M4A audio in a short time. The output audio file will come with the same name as the original one. You can double click the audio to open it by iTunes. If you didn’t see the Encode options, you can Head to the Apple menu and go to System Preferences; Click Keyboard; Go to the Keyboard Shortcuts tab; Choose Services on the left sidebar and check“Encode Selected Audio Files” and “Encode Selected Video Files” -- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To unsubscribe from this group and stop receiving emails from it, send an email to macvisionaries+unsubscr...@googlegroups.com. To post to this group, send email to macvisionaries@googlegroups.com. Visit this group at http://groups.google.com/group/macvisionaries. For more options, visit https://groups.google.com/groups/opt_out.
