Slowed down audio in Vegas

[Rad14]

I have been trying to render a 5.1 project in Vegas 7. That is 1 Mono mpa file duplicated 5 times ok. But when I play in Vegas, the audio is slowed way down to a crawl!!

What is causing this?

Is there some setting I am not aware of that I have to change to make the audio normal?

When I render the final 5.1 project and mux it with the video, again the audio is slowed way down!!

Please, any help with this is greatly appreciated as I am completely stumped.

Thanks for any help

Rad14

[guns1inger]

Which version of Vegas 7 ? Vegas 7 is now up to release d.
If you play back just the AC3 file, how does it sound ?
How does the mono file sound when played from the Vegas timeline, before you duplicate it ?

[Rad14]

Thanks for your quick reply Guns

Vegas 7.0b Build 151

Won't play AC-3 File (says it can't be opened)

When I place the original mpa mono file on timeline and change the rate to 2.0 it playa fine.

[Rad14]

Sorry, wrong about that last part!

Tried it yet again, but final rendered AC-3 audio slowed way down to laughable and totally unusable degree!

[Rad14]

VideoHelp eh?

[guns1inger]

Have you contacted Sony support ? - it is there product after all.
Have you searched the official Vegas forums at Sony to see if this is a known problem ?
Have you updated Vegas to the latest version 7.0d ?

What did you try to play the AC3 file with ? VLC will open and play AC3 files.

In all the time I have used Vegas I have not come across this problem.

[Rad14]

Thanks.