Problem with AVIs from Ulead SMP

farss wrote on 8/5/2004, 5:31 AM
New client bought around his video on a hard drive for me to turn into a DVD and do some audio fixup. Material was edited in ULead MSP. The AVI files went into Vegas OK except for the audio. Vegas saw some issue with them and built proxies, very nice, didn't even know it'd do that, I never cease to be amazed by what Vegas has under the hood.

Anyway that was all good except two questions spring to mind.
Has the client done something wrong in MSP regarding the audio to cause Vegas to have to rework it.
Or is it possible MSP is simply propogating something that was wrong when the media was shot, like he had the camera in 12 bit. (When oh when will Sony stop flagging 16/48K audio as Non Standard?).

I wouldn't really care so much except quite a bit of the audio has this unpleasant fuzziness to the highs. The client was in a bit of hurry so I didn't get a chance to really listen to the audio rendered back out of Vegas for the DVDs, possibly the issue was only in the proxies.

Bob.

Comments

Spot|DSE wrote on 8/5/2004, 6:37 AM
No, Ulead hasn't got something "wrong" but rather different in how they manage the files.
I doubt the proxy is causing the distortion you're hearing in the file, it's likely that the file itself is distorted.
For myself, I hope Vegas always sees 12 bit as non-standard. It's not a standard as much as it is an option.
What does the waveform look like at zoomed levels? What's it's overall peak level? with such low resolution audio, it's quite possible it's distorted.
farss wrote on 8/5/2004, 3:57 PM
SPOT,
don't have the file at the moment. I'll have to wait until the client comes again. But the waveform looked fine, nowhere near 0dBFS.

My BAD,
I meant when will Sony (the camera division!) stop flagging 16/48KHz as Non Standard.

Check any of their cameras or VCRs, set to 16/48 they display "NS" meaning Non Standard. You have no idea how many of the uninformed that trips up. Worse still on even some of their pro gear if you restored settings to factory defaults that's how the audio ends up.

Bob.