I think that the "Audio" section on that page refers to DVDA and not Vegas.
Anyway, I think it would be VERY important to be able to add .ac3 files to the timeline. Actually, I need to! I mean, it makes sense:
I created the .ac3 file with Acid4; now, I would like to be able to use this .ac3 file in a Vegas project and mix it with a video.
So far, the only solution I've found is:
- Create a stereo version of the Acid project
- Use the stereo version in Vegas
- When done editing the video, remove the audio and render the Vegas project
- Then, I will have to use some third party product to merge the video with the .ac3
Sofo, am I missing something or did YOU miss this "feature" in Vegas 4?
This doesn't address your original problem, but ... you could render the video in Vegas to a DV .avi file, then load this file into ACID, minus the audio track, and render the complete audio & surround sound from there. ACID does allow one video track.
If you need to use surround audio created in Acid in Vegas I'd suggest rendering the Acid surround project to WAV rather than AC3.
This will produce 6 mono WAVs representing the 6 audio surround channels (Left, Right, Left Rear, Right Rear, Centre, LFE) which you can use in Vegas, panning them appropriately in the Vegas surround panner.