mp4 audio

illvutar wrote on 10/19/2009, 4:19 PM

I loaded an mp4 file into Sony Vegas Pro 9.0b today. When I paste the file into the timeline I get the video but not the audio. I know the audio is there because if import the mp4 file from my camera into Sony Picture Utility, it plays. I'm thinking there's something I need to do to get at the audiio track but I'm not seeing anything obvious. Thoughts?

Scott

Comments

musicvid10 wrote on 10/19/2009, 4:34 PM

I'm thinking there's something I need to do to get at the audiio track

Yes, you need to roll back from Quicktime 7.6.4 to version 7.6.2 or earlier. A search will bring up plenty of discussion in this forum.

This gets asked so often it should be made a sticky, IMO.
ForumAdmin, are you listening?

illvutar wrote on 10/19/2009, 5:26 PM

Thanks. I'm curious as to what Sony's position on this. I'm going to call them tomorrow.

rs170a wrote on 10/19/2009, 5:44 PM

I'm pretty sure that Sony won't have an answer (other than the fix suggested here) as the problem was caused by Apple and the newest version of QuickTime/iTunes.
You could try complaining to Apple but I have my doubts that they'll take you seriously :-(

Mike

MarkWWWW wrote on 10/20/2009, 5:49 AM

From the release notes to the recently released Sound Forge V.10.0a:

"Fixed a bug that prevented Sound Forge Pro from opening or saving MPEG-4 audio when QuickTime 7.6.4 is installed"

I presume that if Sony can fix it in SF they can fix it in Vegas too, but I don't know how long we might have to wait until they do.

Until then, as you say, roll back to V.7.6.2 of QT is the workaround.

Mark

illvutar wrote on 10/21/2009, 11:12 AM

I called Sony about this. Not real helpful. Basically their recommendation is to roll back to 7.6.2. Which breaks iTunes. I think working with Apple is probably difficult.

musicvid10 wrote on 10/21/2009, 11:15 AM

As was detailed in other threads, you would need to roll back to iTunes 8 as well. That is working for others.