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Hiker
Posts: 12

HERO9 Recording in Looping Mode 4k every chapter has a gray band across the top of the 11th frame...

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Using my HERO9 in Loop Mode, recording at 4k, 5 min loop (1 min chapter). The 11th frame of every chapter file has a gray band across the top. 

goprograyband.JPG

GoPro
Posts: 25,237

Re: HERO9 Recording in Looping Mode 4k every chapter has a gray band across the top of the 11th f...

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Hello @joshuab64436

 

What SD card are you using?

Do you have the camera up to date?

See if re-flashing the software will help. https://gopro.com/en/us/update/hero9-black

Let us know how it goes.
You may also reach out to our Support Team through https://gopro.com/help/ContactUs  for further assistance.
 

Thanks!

Ej

Hiker
Posts: 12

Re: HERO9 Recording in Looping Mode 4k every chapter has a gray band across the top of the 11th f...

[ New ]

I tried 2 different SD cards, the 32gb sd card that came with the camera, and a 64gb card, both are SanDisk EXTREME, and even tried a slower 32gb card.

The problem happened before and after installing this weeks update. I have tried reinstalling the update as well as restoring to a default state on the camera.

I'm confident this is a bug with the camera, not not just my setup alone. 

I confirmed this happens with 5 min loop duration, as well 20 min loop duration.

I can record in regular 4k and 5k modes (not loop mode) and this doesn't happen.

I've formated both the SD cards prior to recording.

It happens when on battery power, or constant USB power.
It happens exactly on the 11th frame of a chaptered file. (Occasionally a file doesn't experience this. I believe it doesn't corrupt when the previous chapter recorded isn't full length)

It doesn't happen on any other frame in the video.
It happens only on 4k.

I believe it's a power drop, or CPU bottleneck.

I'm assuming it is something specific to chaptering 4k resolution files.
I'm not surprised this hasn't been reported before, as I don't think very many of your customers use 4k loop mode.
If this was a random anomoly, I would assume maybe a bad sensor or faulty camera, maybe bad software install.

 

But it happenes extremely consistently, and I can reproduce the bug using these following steps, using a Hero 9 Black.
1 - Set the camera into loop mode using 4k resolution. 
2 - Begin recording.
3 - Stop recording once you have exceeded the loop mode duration.
4 - Import the video files into a computer, and examine the 11th frame of every file.

Please forward this information to Quality Assurance for proper document and testing.

GoPro
Posts: 25,237

Re: HERO9 Recording in Looping Mode 4k every chapter has a gray band across the top of the 11th f...

[ New ]

Thank you for the information shred @joshuab64436

 

We'll have this checked further.

We'll post back once we have an update.

 

Regards,

Ej

 

GoPro
Posts: 25,237

Re: HERO9 Recording in Looping Mode 4k every chapter has a gray band across the top of the 11th f...

[ New ]

 

Hi @joshuab64436

 

I was not able to replicate this.

Settings used: 4K/30 | 5 min | Wide | HS High

Did a test while the camera is plugged in and the camera on its own.

 

Would you be able to share the file/s?

 

Thanks!

Ej

Hiker
Posts: 12

Re: HERO9 Recording in Looping Mode 4k every chapter has a gray band across the top of the 11th fram

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Here are some links to the raw files on my google drive.
Couldn't attatch them directly to the post.

Thanks for following up.

https://drive.google.com/file/d/1FUPhS-3TZ771LiOrZLBIvy8ChMGTTitJ/view?usp=sharing
https://drive.google.com/file/d/1cLZtSqy-Gptdd_KADG9Ahc48fwYrific/view?usp=sharing

 

 

GoPro
Posts: 25,237

Re: HERO9 Recording in Looping Mode 4k every chapter has a gray band across the top of the 11th fram

[ New ]

Hi @joshuab64436

 

We are not able to access the files on the links.

Would you be able to change the privacy settings of the files?

 

Thanks!

Ej

Hiker
Posts: 12

Re: HERO9 Recording in Looping Mode 4k every chapter has a gray band across the top of the 11th fram

[ New ]

https://drive.google.com/file/d/1FUPhS-3TZ771LiOrZLBIvy8ChMGTTitJ/view?usp=sharing

https://drive.google.com/file/d/1cLZtSqy-Gptdd_KADG9Ahc48fwYrific/view?usp=sharing

I believe they are updated to public, thanks.

Also, I have a second camera coming in with another SD card, so I'll be able to tell if it can be reproduced with a different camera.