Timelapse clips grainy after export | Movie Studio 2023

Former user wrote on 12/14/2022, 12:23 AM

Hi there,

After I export my movie, the clips filmed with Gopro hero 10 Timewarp mode (timelapse video 10x speed), will get grainy after export. Otherwise the video quality is really good. I used the "best" coding option for export.

Hardware, Intel i7 and Geforce GTX 1050 GPU.

I used proxy files for editing since the Gopro 4k 4:3 60fps is kinda too heavy for my computer, could this affect the final result? (I think maybe not but had to ask anyway).

I am sometimes shooting in 4:3 because it gives me space to adjust the clips and the crop to 16:9.

Any ideas? Thanks in advance.

Best,

-Sami

Comments

AAProds wrote on 12/14/2022, 12:57 AM

@Former user

Increase your export bitrate.

What format and resolution are you exporting to and at what current bitrate?

Former user wrote on 12/14/2022, 1:34 AM

@Former user

Increase your export bitrate.

What format and resolution are you exporting to and at what current bitrate?

Thanks, I need to try that when I get back to my home office. I will provide you with more information then. Thanks for the quick response.

-sami

johnebaker wrote on 12/14/2022, 11:24 AM

@Former user

. . . . I used proxy files for editing since the Gopro 4k 4:3 60fps is kinda too heavy for my computer, could this affect the final result? . . . .

This in itself will not affect the export quality as the otriginal file is used when rendering for export.

However . . . . Timewarp mode . . . .

This records in 1080p and if you are exporting as 4K UHD then 'will get grainy' is highly likely, upscaling should be avoided wherever possible especially in this case where you have a 4X magnification - 1920 x 1080 is 1/4 the size of 3840 x 2160.

If exporting at Full HD 1920 x 1080 then the graininess may be due to the camera, not only automatically adjusting the capture speed, but also auto adjusting the ISO value to a high figure to enable a fast shutter speed so as not to induce blur in the resulting video at the expense of grain.

HTH

John EB
Forum Moderator

Former user wrote on 12/14/2022, 12:05 PM

Hi,

Thanks for the response, for both of you. I tried some stuff out and I managed to solve the problem. When exported as HVEC, instead of MPEG-4, the overall quality is so much better and the timewarp clips were also really good in quality.

Here's some pictures for you. First MPEG-4 export setting, HVEC and last the specs of the timewarp clips.

I really appreciate the help and community here!

-Glad User

CubeAce wrote on 12/14/2022, 12:16 PM

@johnebaker

Hi John.

GoPro Hero 10 black specs for time-warp.

Ray.

johnebaker wrote on 12/14/2022, 4:00 PM

@CubeAce

Hi Ray

Thanks for the heads up - it looks like the articles I looked at got the specs wrong possibly another case of copying others.

@Former user

The bitrates for the h.264 export settings are incorrect for:

1920 x 1080 they are should be 22000 and 28000 respectively for average and maximum.
4K UHD 3840 x 2160 they should be 60000 and 90000 respectively

Do note, it is not advised to change the advanced settings unless there is a specific reason to do so, the presets are already optimised for the resolution, bitrate and encoding format.

John EB