Getting AES audio into Vegas

farss wrote on 7/31/2005, 2:52 AM
Sorry, this isn't directly related to Vegas other than that's what I'm going to have to use to pull all this together.
Client shot many, many hours of excellent footage on 709 DigiBetacam camera, even downconverted to DV in a J30, still looks fabulous, the locations in remote parts of Australia helps too.
Anyway here's the problem, the audio is very bad big time, seriously clipped looking at the waveform. I've had a trial run attacking it with SF and Clipped Peak Restoration but...there's only so much one can do there and there is 20 hours of the stuff.
But here's the odd part, sure the meters on the J30 say it's way too hot, they don't have clip indicators but even I can see when they stay at 0dB for a minute something is wrong. However listening to it through cans from the headphone jack on the J30 it doesn't sound anywhere near as bad as it does when it's captured into Vegas.
Now I know this isn't a Vegas problem and it's not even directly a J30 problem as I've captured hours of DB program tapes from one of our big networks and the audio is excellent.
But, DB uses 24 bit audio and I'm wondering if the downsampling in the J30 is making the clipping any worse. I'd capture this stuff in via SDI except for some bizarre reason all I can get through the BMD cards and Vegas is 16/48 which kind of defeats the exercise. Only other hope is to try capturing through the AES outputs on a DB deck.
Now I've got M-Audio's Flying Cow magic box that'll take in AES and spit it out down SPDIF but I think SPDIF also only runs to 16 bit. So anyone know of a audio box / card that'll go from AES into Vegas?
Anyone got any thoughts on if I'm wasting my time even trying?
Bob.

Comments

farss wrote on 7/31/2005, 3:38 AM
Ooops,
think I found the problem or at least part of it, for some oddball reason the J30 is outputting 16/32K audio and Vegas is making a right mess of it. Yes I've checked the setup on the J30 and iLink audio is set to channels 1/2 which according to the manual should give me 16/48K. I can do a conversion on the audio in SF and all sounds much better but still what the heck is going on!
Bob.