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Can render in .wmv and .qt Everything else… No.
I’m really struggling to resolve a very strange audio issue that I’m having with Sony Vegas Pro 8 and I hope someone can help me. I’ve been reading through the forums hoping to find a similar problem but I’m having no luck… The post is a little long (sorry about that) but I wanted to try and list all of the symptoms.
For some reason the render of my 8-minute project is hanging due to the audio. (BTW,the project is SD and only in stereo.) However, the rendering only hangs in certain circumstances. Initially I was trying to render an mpeg-2 with the audio stream included and it kept hanging. It gets to about the mid-way point and then simply dies. There is no error message. I have to get into Task Manager and kill the application. When I attempt to end the application I get a message that Vegas is waiting on a background operation to complete.
I played around and determined it’s something to do with the audio. However, I get different outcomes depending on the format I’m rendering. If I try to render a .wav it finishes but only renders half the track. If I render .ac3 it hangs halfway through and won’t complete the render. However, if I render the entire project as a Windows Media file or a Quicktime file… No problems.
I’ve tried isolating the problem by removing all the audio envelopes, music etc, and having only one raw audio track but it doesn’t seem to help. I’ve even tried removing audio events around the portion of the project that seems to be causing the problem. No luck.
The audio in Sony Vegas itself sounds fine and doesn’t appear to have any problems.
And here’s where it gets really peculiar. If I try to render a video stream only for the .mpeg-2 – it still includes the audio… I’ve been double-checking that audio is not selected but it still renders the sound (and only renders half the track instead of hanging). I have zero idea as to why that would be happening.
Oh, and finally, I had Sony Vegas 7 prior to this but as I’ve only produced little projects for YouTube, so I’ve never bothered to try and create a DVD before – so I can’t tell you if the problem existed beforehand. The only project I ever screened at a DV film festival I put straight out to tape and took the tape to a company to master a DVD and there were no audio problems.
On the PC side – I’ve played with the dynamic RAM (I usually leave this at 0) and the processing threads (I usually leave this at 1). I am rendering on a 500 gig MyBook drive attached to my PC by firewire. My PC is a three-year old Dell Latitude (D800) with 4 gigs of RAM. When I’ve monitored the rendering process in Task Manager it appears to grab a lot of RAM before dying – about 1.87 gigs in total. Rendering with other formats (that completely successfully) generally only takes about 785 Meg.
At this stage I’m thinking that it’s the codecs but wanted to get some opinions before I played around any more. (Actually at this stage, I’m hoping someone will tell me it’s some blindingly obvious setting I haven’t managed to get right… 🙂
Thanks for your help and feedback.
Carol
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4 Replies
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Very strange. Have you tried rendering the audio out to anything else? Like a wav file? I’d at least try that. If the wav file plays OK, drop in a new audio track below and mute the old one. See if you get better results.
JerryW
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Hi Jerry —
Thanks for the reply. Yes, as mentioned in the post, I had tried rendering a .WAV but with little success.
However, I upgraded to 8.0b late yesterday and this seemed to cure the .WAV issue – so I have at least been able to drop a separate audio track into DVD Architect.
Although strangely, the only change to .WAV in 8.0b appears to be allowing files bigger than 4G – and my file size is 97 Meg. So I’m still not sure what the problem was (or is).
But at least this is a bit of progress and I have sound – which is encouraging and not quite as depressing as yesterday.
However, the AC3 is still hanging. Haven’t tried the MPEG-2 render yet …
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Carol,
I have had similar problems with Vegas Pro 8, although mine occured while working in HDV and trying to render to WMV-HD and other similar formats. My workaround was to render to mpeg2 first, then bring that file into Vegas 7e, and use that to render to WMVHD.
I also found that Vegas Pro 8 took much longer to render a DVD file than its predecessor.
I had a few conversations with tech support.
At this point I suspect that the problem is related to stills or graphics on the timeline in multilayered effects. It was crashing where I had two hi-res digital stills on screen at once.
I am still experimenting.
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Hi Mark —
Thanks for that. At least I know that I’m not the only one with bizarre problems in Vegas 8.0.
I don’t have any high-res images but I do have a truckload of effects etc. Although what the relationship this would have to the audio would be anyone’s guess.
Looks like I’m going to have get creative and see if I can also find a workaround…
Weird stuff.
C.
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