No AAC audio using Sony AVC (.mp4) SVP11.

[Kam Kalambay]

I’m having the EXACT same issue and when i was on windows 7 32bit there was no problem AT ALL with AVC rendering as it went perfectly smooth and gave me great vids. Now on windows 7 x64 vegas pro 11 (32 bit vegas due to having to finish editing in my 32 bit version as some plugins were missing that i had before upgrading windows. Now ive tried different settings but aac audio is missing on the files…its very annoying. ive put all codecs i can and removed other accordingly, but no can do…whats the issue? also it seems vegas pro 11 does not have Mainconcept/AVC anymore?

[Bernd Porr]

I’ve just got an e-mail from Sony telling me that there is a new build available. So, installed it and tried the Sony AVC render and there’s still no sound.
Also when I use the mainconcept AVC/H264 render I get an error if I try to use the GPU acceleration.
Bottomline: nothing has been fixed so far.
/Bernd

[Mike Silberstein]

This problem seems to be hardware and content dependent. I’m having no audio track in mp4 sony AVC renders on a Win 7 x64 machine with AMD 6770 GPU in a simple test projects where only media generators and a wav file are used. But Sony’s GPU vp11_benchmark project renders flawlessly. Mainconcept gives me “The reason for the error could not be determined” upon render attempt with “GPU if availavle” but render is fine when “CPU only” is selected.

Any render is fine on a Win7 x32 laptop with NVIDIA card that is simply not compatible with Vegas 11, it’s not visible in prefs, Vegas only utilizes CPU to render.

[Mike Silberstein]

I just repeated Sony GPU benchmark test with footage tracks muted leaving only generated media in the project. No sound in Sony avc mp4 render. When I unmute all tracks same project renders ok. Weird.

[Hayden Roberts]

[Bernd Porr] “I’ve just got an e-mail from Sony telling me that there is a new build available. So, installed it and tried the Sony AVC render and there’s still no sound.”

I have recently done a fresh install of Windows 7 x64 and have just installed Sony Vegas Pro 11 (build 511) 64-bit and the Sony AVC/ACC audio bug is now fixed.

I’d like to add that I did another Windows 7 install after my original post but before build 510/511 and the bug was still present. This leads me to the conclusion that build 510/511 has solved this issue.

Maybe there is some other gremlin at work here for you Bernd?

I’m so glad this has been fixed. My videos render slower with Sony AVC/ACC but the improved image quality the codec gives is more than worth it.

Hayden.

[Hayden Roberts]

[Adis Klodish] “But Sony’s GPU vp11_benchmark project renders flawlessly.”

I have read a bit about this benchmark but have yet to find it. I would really like to download it and give it a try, Have you got a download link available?

Regards, Hayden.

[Mike Silberstein]

It’s on this page:
https://www.sonycreativesoftware.com/vegaspro/gpuacceleration

Direct link:
https://www.sonycreativesoftware.com/vegaspro11benchmark

[Hayden Roberts]

[Adis Klodish] “It’s on this page:
https://www.sonycreativesoftware.com/vegaspro/gpuacceleration

Direct link:
https://www.sonycreativesoftware.com/vegaspro11benchmark“

I ended up finding it last night. The benchmark downloads ultra slow at 100 KB/s so I didn’t bother. I ran my own tests using a 1080p 59.94fps clip. GPU rendering with Mainconcept AVC with my GTX 580 was 520% (equivalent to 5.2x) faster than using just my Intel i7 2600K (overclocked to 4.7 GHz too)! That is an insane improvement. Sony AVC was only a 18% boost using all the same settings.

Regards, Hayden.

[Dave Lozinski]

[Hayden Roberts] “GPU rendering with Mainconcept AVC with my GTX 580 was 520% (equivalent to 5.2x) faster than using just my Intel i7 2600K (overclocked to 4.7 GHz too)! That is an insane improvement. Sony AVC was only a 18% boost using all the same settings.”

Curiously now… have to ask why the Mainconcept would be so much quicker than the Sony one?

Surely Sony would have optimized the code for theirs? 🙂

—————————————–
https://www.davelozinski.com
https://www.davelozinski.com/DemoReel/
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[Hayden Roberts]

[Dave Lozinski] “Curiously now… have to ask why the Mainconcept would be so much quicker than the Sony one?

Surely Sony would have optimized the code for theirs? :-)”

I thought the same thing. I really can’t explain it. I did notice that while rendering Mainconcept AVC that my GPU’s where at a far higher usage %. Here are some images showing the difference between Sony and Mainconcept AVC GPU usage (both cards are NVIDIA GTX 580’s running in SLI).

Mainconcept GPU usage:

GPU1: Max 44%
GPU2: Max 82%
(also note CPU utilization was at ~75%)

Sony GPU usage:

GPU1: 30% (due to that spike, average was 27%)
GPU2: 27%
(also note CPU utilization was at ~64%)

Seems to me like Mainconcept is better optimized than Sony. This doesn’t surprise me greatly when looking at Sony’s track record with software, Vegas Pro included.

I would love to have the speed while using Sony AVC that MC offers, I can render a 1 min clip of 1080p 59.940fps at 15mbps (with no effects) in just 53 seconds. The same clip and setting in 29.970fps at just 32 seconds! This is around 60fps render speed for a 1080p clip. That is blazing fast. Now if only Sony’s AVC GPU rendering was nearly that fast.