More 8.0b Crashes

MarkHolmes wrote on 6/12/2008, 11:03 PM
So trying to get our feature rendered out in sections or reels of 12-15 minutes each. Have 2 sections rendered out to 720P Cineform (Higher HD Quality) but Vegas keeps crashing on this third reel. Tried twice now, here are the error messages:

First crash:

AllocateMixBuffer(Microsoft Sound Mapper) : m_wfxPrepared.nSamplesPerSec is 192000! (m_ccPreroll 142806941070746076 nBuffers 33243716)

Second crash (after I bumped project audio properties down to 96K, hoping that would fix it.):

AllocateMixBuffer(Microsoft Sound Mapper) : m_wfxPrepared.nSamplesPerSec is 192000! (m_ccPreroll 142806941070746076 nBuffers 33243716)

Barring some kind of help in the forums, could someone point me in the right direction at SCS for proper tech support? We are on deadline to deliver these files to a post-production house for transfer to digibeta by next week for a film festival in San Francisco.

Please, Sony, any help here would be appreciated.

Comments

MarkHolmes wrote on 6/12/2008, 11:17 PM
Third file just crashed. Moved on to fourth reel. We'll see how that works.

But please, anyone at Sony, help us with this.

We have distributors coming to these screenings and want to present the best possible product to them. When 8.0c comes in a month or two, yes, then we'll have no problems with transfers, but I need a solution now, whether it be a permanent fix or a workaround.

This feature film represents over two years of work from dozens of people; I cannot let them down because of some bugs in the current software.

Help.
Darren Powell wrote on 6/13/2008, 2:17 AM
Try the free Veggie Toolkit ...

http://www.peachrock.com/software/VeggieToolkit3/veggie-toolkit.html

When you open it look on the right hand side screen ... pick your source Veg file (thirdreel.veg or whatever) ... pick your output destination ... then pick one of the YUV templates at 720p ...

It should render OK ... it has been on my machine ... (I'm just about to start testing on my 10 x 10 minute project files for my feature as well using this method suggested to me by Bob (Farss) a very knowlegable member of this forum ... fortunately my deadline passed months ago ... so theoretically I'm already dead ... so the pressure's off ... if you know what I mean ...

Once you get a render out in YUV try bringing the render back in and re-rendering in whatever format you need ... either through the toolkit again or as a straight render ...

Might work ... might not ... good luck.

Cheers,

Darren Powell
Sydney Australia

farss wrote on 6/13/2008, 5:10 AM
Just to explain why I think this might work.

At least one of the problems causing Vegas to crash seems relate to correctable errors in the m2t files. I've seen this oddity happen and Vegas not crash, it just got stuck for ages trying to decode a frame. Then it'd playback a few more frames and get stuck again. This happened at the exact same time as a circuit breaker tripped in the venue where the tape was recorded. The VCR I was recording to was mains powered so the source of the glitches are explainable. The remaining 4 hours of HDV play and render flawlessly.

So my theory is that rendering the m2t files to some other codec, preferably a lossless or near lossless one, gets the decoding problem over and done with. If Vegas does crash doing the simple transcode then the problem is easily identified and hopefully dealt with.

Now I can't say if this aproach will cure everything, there could well be other gremlins in the works but at the very least it might reduce the number of factors leading to a crash and hopefully get some movies finished. There is a downside to this though. The only other available HD codecs are less compressed and hence you'll be needing a lot more disk space. On the upside HDDs are cheap these days.

My other suggestion follows on from what Spot has said. You might get less errors on the tape using the more expensive Sony "HDV" tape. You might also get less errors that need correcting using a decent HDV VCR to capture. That'd exclude the M10 as it's only a Z1 in a box.

Please be warned though, all of the above are just ideas. Until this is tested it's just a theory. If you're really stuck it'd be worth a try though. If anyone gets any results be sure to let us know.

Bob.
MarkHolmes wrote on 6/13/2008, 9:19 AM
Darren, Bob, thanks for the suggestions.

To clarify, I am not working with HDV m2t files. Am working with HVX-200 footage.

I've taken the reel length down to 10 - 12 minutes, rendering to Cineform 720P Higher HD Quality, then am taking those clips into a 7.0d timeline to render out to the formats the post house wants. I have 6 of 8 reels completed now. All will be good.

But I have to say, as a Vegas user since Version 4, I truly miss the old days of Vegas' rock-solid stability.