Vegas Pro 9, still having problems with AVCHD rendering at 1080i…

[Norman Willis]

OK, I’m sorry. Thank you for the recap. I must have been getting you and another gentleman I was trying to help mixed up.

If you are rendering successfully, the problem does not sound like memory.

Perhaps John Rofrano or one of the other experts will know. But have you reported this to Sony?

[Olivier Philipp]

Hi !

I have also Vegas 9.0a PRO and use it to render Sony SR12 m2ts file

And I have the SAME problem using Sony AVC rendering.

When playing, sometime, the rendered video freezes butthe sound continues…

It happens when playing rendered files with my Popcorn A110 player, but also in Windows with VLC Videolan player.

I have notice that the freeze often append between to media, when one were recompressed by Vegas (because a trasition) and a media that were NOT recompressed…

Olivier

[Etienne Mire]

Hi,
since this post is not too old, I thought I’d share my experience.
Nathan, I have the exact same problem as you.
Encoding back to 1920x1080i with VP9a (at 25fps because I’m in France, but I don’t think it makes any difference for that problem) will always result in an unsynced video that stutters.
Note that the first 2mins or so are always perfect, and then problems appears suddently (no matter where I put the loop region, or the clip I choose).

There is only one point I would like to add: rendering the movie without sound. I just unchecked the ‘include audio’ in the rendering options and when I do that, the movie plays fine in its whole length.
…but of course without sound.
I’ve tried and tried many different sound options 5.1 or stereo with different rates/frequencies, but nothing helped. and I’m getting dry of tests by now.
SV doesn’t crash during rendering although at one time, the rendering time kept counting without anything happening and I had to kill the app (probably because my project properties and output options were different: like going from 5.1 to stereo).
The only audio format I have available on the audio rendering tab is DolbyDigital AC3 studio, so my tests are kind of limited using only this format (btw, are there any viable other formats i could render in?)
I’m afraid I’m quite stuck here, but maybe this new point will help make everything move forward, at least I hope so.

Thanks for any help/comments/ideas/tests that could be made. And long live this forum that has helped me A LOT before already!

Etienne

[Olivier Philipp]

Hi Etienne,

I’m also French and same problem…

I have report to Sony, but I’m still struggling with the first level of the helpdesk : do you have the last version, do you have enought ram, etc…

I will try your tips and render my projects without sound…

Maybe could you also report to Sony…

“L’union fait la force” as we said in France !

Olivier

[Nathan Smith]

Glad to know I’m not alone (and not crazy!)

Like I’ve said, the rendering is definitely improved in vegas 9 (it actually renders instead of crashing).

I’m rendering back to a .m2ts file, and with that I think the only option is ac3 for audio. I’d prefer to render back to .m2ts for any future blu-ray work, and hopefully that will be easier.

I’m trying a new test in an mp4 container (1920×1080), and vegas forces you to use AAC. I’ll try it out in the ps3 and see if it works better or not and get back to you guys.

Haha, before I could finish typing this Vegas crashed. Oh well for that test!

[Norman Willis]

Olivier, Nathan, Etienne, and Jim,

How fresh/clean are your installs of Vegas?

I have VP9a installed on a laptop with a ton of other stuff, and it crashes all the time. I have the same VP9a installed on a desktop, as a clean install and almost nothing else, and it seems to run.

It’s just a question to consider.

Norman Willis
http://www.nazareneisrael.org
servant@nazareneisrael.org

[Olivier Philipp]

My Vegas is fresh installed.

Until Vegas 9.0a update, the rendering does not crash anymore with “out of memory”, nor the application.
But, the result is still having problems playing back on several device.

So, “our” problem, is NOT an installation problem… sounds like a bug in the Sony AVC encoder ?

Olivier

[Nathan Smith]

Identical to Oliver. Crashed in previous versions, but now it no longer crashes, just makes files that play with errors.

Also, clean install here too.

[Etienne Mire]

I installed SVpro9a on my vista32bit, win7 64bit (right after a fresh install) on the same laptop, and also on my older laptop running XP.
All delivered files out of sync.

However it works when:
-there is no audio
-I use the bluray video stream (so again, no audio)
-if I render using mainconcept mp4 (not sony avchd) with the audio, but I then loose the 5.1 audio (and I’m not really willing going down the path of demuxing remuxing with another program)

It ALSO kindof works with sony AVCHD codec when
-I forced the entire video to be recompressed, for example by adding an effect to the whole video length.
Then it plays well on my computer but NOT on the TV with the USB key where the problem appears again. (The original files plays well on the USB key, and I’m sure the project settigns are good).
For that last particular example, is it the same for you?

So I can see two problems:
-the vegas ability to render without recompressing the frames messes up the audio sync when using avchd (and I think this not recompressing for avchd feature is new to vegas pro 9)
-when the entire movie is re-encoded, windows media player is somehow able to run it smoothly but some other devices might not (for example the sony bravia TVs…which btw only decodes mpeg1 and avchd from the USB port!!)

Etienne

[Norman Willis]

>>My Vegas is fresh installed.

Until Vegas 9.0a update, the rendering does not crash anymore with “out of memory”, nor the application.
But, the result is still having problems playing back on several device.

So, “our” problem, is NOT an installation problem… sounds like a bug in the Sony AVC encoder ?

OK, have you reported to Sony?

If it is a bug, the only way they will know about it is if it gets reported.