Quicktime movie with 3 audio tracks. Can't select audio track!

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Level 1

8 points

Quicktime movie with 3 audio tracks. Can't select audio track!

I have a movie containing 3 audio tracks (3 different languages):

Format: H.264, 720x304, 16,7 Mio
AAC, Stereo (L R), 48.000 kHz
AAC, Stereo (L R), 48.000 kHz
AAC, Stereo (L R), 48.000 kHz

When I play this movie with Apple Quicktime I hear a mix of all 3 languages at the same time. How can I select each audio track separately. With VLC player (freeware) it works fine.

Is the selection of the audio tracks a feature of Quicktime Pro or is this a bug in Quicktime?!

Windows PC, Windows XP Pro

Posted on Sep 21, 2008 12:41 PM

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Answer 1

lildog

Level 1

0 points

Oct 17, 2008 8:59 AM in response to Gasventil

I think I may be able to help you. I am new to quicktime but I ran across this problem. In movie properties window select the 2nd audio track and in the other settings tab select the alternate track as the main track. I have only two audio tracks but this should get you going. I assume you will have to set the third audio track's alternate to the main track.

Good Luck,
lildog

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Answer 2

Gasventil Author

Level 1

8 points

Nov 5, 2008 12:31 PM in response to Gasventil

Hello lildog, hello QuickTimeKirk,

Thank you for your answer. In the meantime I solved this problem. It is caused by the program ”MP4Box” which I used to create the video with the 3 audio tracks. Apple Quicktime and iTunes needs ”very special” header settings inside the mp4 container. A new version of MP4Box with special switches for this case solves the problem. For more details see this thread on the gpac/MP4Box project homepage: http://sourceforge.net/forum/forum.php?threadid=2345177&forumid=287547

The VLC Player is much more docile with multiple audio tracks.

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Answer 3

Oct 17, 2008 9:24 AM in response to Gasventil

It may already be enabled in the QuickTime file.
Use the View menu --> Languages to toggle between the different audio tracks.

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