Sound from MP4's do not come in, but have before.

Paulito wrote on 9/18/2009, 10:16 PM

I have a great Sony Cybershot camera that shoots good 720 video. For weeks I've been great with opening it up on the computer and dragging and dropping the thumbnail files onto HD and opening them up in the Sony Vegas 9.0

The video and sound of those files have always worked, but today the sound will not appear on the tracks. Nothing is wrong with the mp4's, I can open one up, play it on VLC player and I can hear it and see it fine. But the sound will not appear with the video on the tracks in Vegas.

What could it be? I've dragged and dropped everything from the camera on my HD.

Comments

Eugenia wrote on 9/18/2009, 10:20 PM

If you upgraded your Quicktime last week, maybe that's the culprit, since Vegas uses Quicktime to decode these files. Or maybe you installed or uninstalled other codecs since then.

Paulito wrote on 9/18/2009, 11:23 PM

I DID have to reinstall the latest Itunes and was obligated to reinstall the lastest Qucktime with it to make my itunes be 100%, I did that a few nights ago.

I think you nailed it with that one, so what are my options?

Eugenia wrote on 9/19/2009, 12:10 AM

My last comment on the board, since I don't want to leave my answer in the middle:

1. Download Quicktime only, and "repair" the installation.
2. If this doesn't work, revert to an older Quicktime version. There is one available somewhere at Apple's site.
3. If this doesn't work either, or the older version messes up your newer iTunes, install the latest “generic build” of FFDshow at the “SVN builds by clsid” section. Make sure you’re downloading from clsid’s section: http://sourceforge.net/projects/ffdshow-tryout/files/
4. If this doesn't work either, load your file on Quicktime, see if it has audio recognized there. If it does, upgrade to Quicktime Pro, and rewrap the MP4 file (I am assuming your camera shoots in h.264 and not in MJPEG -- QTPro can rewrap h.264 in MP4 with AAC as audio, without re-encoding the video).
5. If this doesn't work either, then install SUPER, or use the command-line ffmpeg encoder to re-encode the file to something else.
6. If this is too much of a pain, sell the camera, and buy the Canon SX200 IS (which shoots way better video anyway: http://www.osnews.com/story/22106/Review_The_Video_Mode_on_the_Canon_SX200_IS ), and Cineform NeoSCENE to transcode its MOV h.264 files to AVI that decodes nicely on Vegas.

I can test the re-wrapping for you if you like, but you need to upload somewhere 3 seconds of video with audible audio, directly out of the camera. Email me directly on my hotmail account (it's easy to find).