XAVC S Render Bug--Please Confirm

wwaag wrote on 10/24/2015, 9:30 PM
I've discovered what I think is a rendering bug using one of the the Sony XAVC S templates. Basically, it drops the audio on the last video frame. Here is a screen shot showing the problem.



Note the straight line during the last frame. However, the XAVC Long template renders properly with the audio present during the last frame. For long events it would be easy enough to simply drop the last frame. However, my project has lots of short 3 to 4 sec events and I was getting an audible click between events which led me to find the audio had been dropped during the last frame. If someone else could confirm this, I will submit a bug report to Sony--unless this is already common knowledge and I'm simply late to the party. The workaround is easy enough I guess--just use the XAVC Long template.

wwaag

AKA the HappyOtter at https://tools4vegas.com/. System 1: Intel i7-8700k with HD 630 graphics plus an Nvidia RTX4070 graphics card. System 2: Intel i7-3770k with HD 4000 graphics plus an AMD RX550 graphics card. System 3: Laptop. Dell Inspiron Plus 16. Intel i7-11800H, Intel Graphics. Current cameras include Panasonic FZ2500, GoPro Hero11 and Hero8 Black plus a myriad of smartPhone, pocket cameras, video cameras and film cameras going back to the original Nikon S.

Comments

ushere wrote on 10/24/2015, 10:38 PM
just out of curiosity, what are you using xavc for?

i'm round tripping to resolve / ae for some things and using xdcam hd mxf, do you think xavc mxf any better, and if so, why?

thanks
john_dennis wrote on 10/25/2015, 11:43 AM
I rendered five seconds to each render template and observed the same result as you. The audio is missing from the last frame of the XAVC S (mp4) version.

https://dl.dropboxusercontent.com/u/40618156/2015-10-25%20XAVC%20S/XAVC%20S.png
wwaag wrote on 10/25/2015, 3:40 PM
@ushere

just out of curiosity, what are you using xavc for?

I'm using it as an intermediate. Pretty much all of my current projects are 1080 60P. Xdcam hd only supports 1080 60i. It you customize the template and change it to progressive, it reverts to 720P. My current project involves 2.7K Gopro footage. I use Avisynth and Virtudaldub to remove the fisheye and render to Magic YUV, a lossless codec that produces huge file sizes. Inside of Vegas I do my cropping and then render to XAVC as an intermediate that will go into my final project. Workflow seems to work OK.

@john

Thanks John for your confirmation. I'll file a bug report with Sony.

wwaag

AKA the HappyOtter at https://tools4vegas.com/. System 1: Intel i7-8700k with HD 630 graphics plus an Nvidia RTX4070 graphics card. System 2: Intel i7-3770k with HD 4000 graphics plus an AMD RX550 graphics card. System 3: Laptop. Dell Inspiron Plus 16. Intel i7-11800H, Intel Graphics. Current cameras include Panasonic FZ2500, GoPro Hero11 and Hero8 Black plus a myriad of smartPhone, pocket cameras, video cameras and film cameras going back to the original Nikon S.

ushere wrote on 10/25/2015, 6:55 PM
thanks wwaag - understand now.

i'm still wondering which is the best intermediary for my mp4 (ex1). hd mxf, dnxhd, xavc since i'm going back and forth from both ae and resolve?
OldSmoke wrote on 10/26/2015, 6:25 PM
I noticed that even the files direct from my AX100, which are XAVC-S, are missing the audio on the last frame. It's actually not the whole frame, maybe a 1/4 of it.

Proud owner of Sony Vegas Pro 7, 8, 9, 10, 11, 12 & 13 and now Magix VP15&16.

System Spec.:
Motherboard: ASUS X299 Prime-A

Ram: G.Skill 4x8GB DDR4 2666 XMP

CPU: i7-9800x @ 4.6GHz (custom water cooling system)
GPU: 1x AMD Vega Pro Frontier Edition (water cooled)
Hard drives: System Samsung 970Pro NVME, AV-Projects 1TB (4x Intel P7600 512GB VROC), 4x 2.5" Hotswap bays, 1x 3.5" Hotswap Bay, 1x LG BluRay Burner

PSU: Corsair 1200W
Monitor: 2x Dell Ultrasharp U2713HM (2560x1440)

john_dennis wrote on 10/26/2015, 9:02 PM
While I believe that all render templates in Vegas Pro should produce frame accurate results, my camera drops https://dl.dropboxusercontent.com/u/40618156/2015-10-25%20XAVC%20S/Drop%204%20frames.pngfour frames worth of audio at the beginning and end of a clip[/link]. This is a most annoying and tedious characteristic when editing. It creates a lot of busy-work when combining files.
wwaag wrote on 10/26/2015, 9:28 PM
And I thought I was the only one with such problems. I use a Panasonic FZ200 as a travel camera, mostly for stills, but it also shoots decent video. For video clips, the 1st half second is missing--30 frames. I just completed a road trip using a Gopro Hero 4 Black, in which audio was fed from a Zoom H2n. No missing audio, but the 1st half second of each clip is distorted so as to produce a very loud click making it unusable. And now that I think about it, my old Sony HC1 HDV also dropped audio on the first few frames. In all cases, Vegasaur to the rescue to easily trim the clips. I guess of the two, I'd rather have problems of missing audio on the front end rather during editing.

wwaag

AKA the HappyOtter at https://tools4vegas.com/. System 1: Intel i7-8700k with HD 630 graphics plus an Nvidia RTX4070 graphics card. System 2: Intel i7-3770k with HD 4000 graphics plus an AMD RX550 graphics card. System 3: Laptop. Dell Inspiron Plus 16. Intel i7-11800H, Intel Graphics. Current cameras include Panasonic FZ2500, GoPro Hero11 and Hero8 Black plus a myriad of smartPhone, pocket cameras, video cameras and film cameras going back to the original Nikon S.

wwaag wrote on 10/26/2015, 9:46 PM
@old smoke

For some reason, I cannot click on your dropbox link. I can't even copy it. Noticed the same thing on another thread where you posted a link.

wwaag

Now it's disappeared completely.

Now it popped up again, although I still can't click on it or copy it. Pretty weird.

AKA the HappyOtter at https://tools4vegas.com/. System 1: Intel i7-8700k with HD 630 graphics plus an Nvidia RTX4070 graphics card. System 2: Intel i7-3770k with HD 4000 graphics plus an AMD RX550 graphics card. System 3: Laptop. Dell Inspiron Plus 16. Intel i7-11800H, Intel Graphics. Current cameras include Panasonic FZ2500, GoPro Hero11 and Hero8 Black plus a myriad of smartPhone, pocket cameras, video cameras and film cameras going back to the original Nikon S.

john_dennis wrote on 10/26/2015, 9:51 PM
The Sony RX10ii and the Canon G3X (both of which use the same sensor) don't appear to have those annoying characteristics, at least in 1080-60p mode. There is hope for a walk-around camera.
OldSmoke wrote on 10/27/2015, 8:12 AM
I corrected the link.

Proud owner of Sony Vegas Pro 7, 8, 9, 10, 11, 12 & 13 and now Magix VP15&16.

System Spec.:
Motherboard: ASUS X299 Prime-A

Ram: G.Skill 4x8GB DDR4 2666 XMP

CPU: i7-9800x @ 4.6GHz (custom water cooling system)
GPU: 1x AMD Vega Pro Frontier Edition (water cooled)
Hard drives: System Samsung 970Pro NVME, AV-Projects 1TB (4x Intel P7600 512GB VROC), 4x 2.5" Hotswap bays, 1x 3.5" Hotswap Bay, 1x LG BluRay Burner

PSU: Corsair 1200W
Monitor: 2x Dell Ultrasharp U2713HM (2560x1440)

wwaag wrote on 11/5/2015, 8:50 PM
I reported the problem to Sony and today received this reply.

Hi Wayne,

Thank you for contacting Sony Creative Software.

I was able to reproduce this issue on my system, so I have now reported the problem to our QA team for further investigation. As far as I could tell, the render template itself didn't have much to do with the problem -- I had issues with the audio dropping when rendering to 4K instead of HD, and rendering to 30p instead of 60p.

Now that this problem has been documented in our database, our Development team should be able to work toward finding a permanent solution.

If you still have a follow-up question on this particular incident, please feel free to update it. If you have a completely different question, please create a new incident.

Sincerely,

Emily B.
Customer Service
Sony Creative Software Inc
www.sonycreativesoftware.com

At least the problem has been acknowledged. Whether it will be fixed is anyone's guess.

wwaag

AKA the HappyOtter at https://tools4vegas.com/. System 1: Intel i7-8700k with HD 630 graphics plus an Nvidia RTX4070 graphics card. System 2: Intel i7-3770k with HD 4000 graphics plus an AMD RX550 graphics card. System 3: Laptop. Dell Inspiron Plus 16. Intel i7-11800H, Intel Graphics. Current cameras include Panasonic FZ2500, GoPro Hero11 and Hero8 Black plus a myriad of smartPhone, pocket cameras, video cameras and film cameras going back to the original Nikon S.