iTunes & Multiple Audio Tracks
I have some movies on which I'd like to put multiple audio tracks. Here's what I'm doing.
First, I add the second audio track in Subler and save.
Returning to iTunes, I'm not given the option to switch in iTunes or QuickTime 10.
So I go back to Subler and turn one track off, saving again.
Now I'm given the option to switch.
But the audio doesn't work. The standard track works fine. Switching to the other one makes a popping sound and then pure silence. Switching back works fine. This also happens in QuickTime 10.
So I tried to enable/disable via QuickTime 7 Pro.
Turning a track off forces me to resave the file, but not like Subler, oh, no. QuickTime 7 Pro forces me to reencode the whole thing as an MOV, which takes forever and is pointless.
I've done this without having to save before. What's going on? How do I add a second, selectable audio track that works on things in iTunes without QuickTime 7 Pro forcing me to save MP4s as MOVs and [insert any audio filetype with zero video whatsoever here] as MOVs as well?!
First, I add the second audio track in Subler and save.
Returning to iTunes, I'm not given the option to switch in iTunes or QuickTime 10.
So I go back to Subler and turn one track off, saving again.
Now I'm given the option to switch.
But the audio doesn't work. The standard track works fine. Switching to the other one makes a popping sound and then pure silence. Switching back works fine. This also happens in QuickTime 10.
So I tried to enable/disable via QuickTime 7 Pro.
Turning a track off forces me to resave the file, but not like Subler, oh, no. QuickTime 7 Pro forces me to reencode the whole thing as an MOV, which takes forever and is pointless.
I've done this without having to save before. What's going on? How do I add a second, selectable audio track that works on things in iTunes without QuickTime 7 Pro forcing me to save MP4s as MOVs and [insert any audio filetype with zero video whatsoever here] as MOVs as well?!
Comments
You perhaps know all that functionality is in VLC already?
If a QT move has a passthru AC3 track, it would be great to be able to switch on all movies
and not just the ones bought from the itunes store as well as switching subtitle tracks on and off.
If there is a standard that can be adopted as seems to be the case with VLC player.
thanx, best
I routinely export work I have done to QT movies with embedded AC3 (for passthru) tracks.
Those QT-mv4 files can be played back with ac3 passthru, downmixed stereo on computer
and with and without the subtitles in VLC. Not so in QT player or iTunes so far.
FWIW YMMV
Wait, you're saying that I can successfully add the second audio track via VLC and it'll operate correctly in iTunes?
Handbrake encodes do not give these options in iTunes either AFAIK
but work perfectly in VLC
that includes multiple ac3 tracks and the ability to play them as passthru or decoded and downmixed to stereo for laptop.
How's this:
Since QuickTime 7 Pro won't extract and save audio files as MP3 (or any kind of audio, for that matter), what's an application that will?
Since QuickTime 7 Pro is being an idiot and won't let me add secondary audio tracks without reencoding, what's an application that will? Subler should theoretically work, but isn't.
I figured it out! In subler, set the second audio track's "alternate group" to 1 (the same as the regular audio track's alternate group)
Wow, this thread?
Thanks a lot for that! And thank you for posting an answer here when I'd forgotten about doing it after discovering the same a good while ago.
Brilliant! Works perfectly, I can now select the audio track I desire in iTunes or on Apple TV. Such a simple workaround in Subler, a pity iFlicks doesn't have the same capacity for encoding multiple audio tracks! Or does it??
That's certainly very kind of you. Pity it took 14 months and 10 days, but you got it! U da man!
was googling for the same problem found this thread and problem solved! Thanks arolson101
Anyone know how to set the "alternate group" in ffmpeg?