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Ted-Bender
Participating Frequently
May 27, 2025
Question

Kompression artefakte trotz höherer Bitrate

  • May 27, 2025
  • 2 replies
  • 1275 views

Ich erstelle Talkmitschnitte aus Zoom-Talks.

Rohdatei  1920*1080, 25fps, Rate 121kbit/s, Gesamtrate 247kbit/s. Größe: 63MB

Ich exportiere mit 1920*1080, 25fps, Rate 249kBit/s, Gesamtrate 567kbit/s. Größe 143 MB.

Obwohl die Bitrate höher ist, erscheinen deutliche Kompressionsartefakte im Video. Was mache ich falsch?

2 replies

Stan Jones
Community Expert
Stan JonesCommunity Expert
Community Expert
June 6, 2025

@Ted-Bender,

 

That is a low source bitrate for editing. What are the settings for the input file? Zoom has setting for optimizing recordings for use in editing.

 

Stan

 

T
Ted-BenderAuthor
Participating Frequently
June 6, 2025

As I wrote, the settings for the input file are 247kbit/s and it looks fine (see the screenshots from my first post). 
After editing, I export with a doubled bitrate and it has artefacts. 
Any ideas?

Ted

Stan Jones
Community Expert
Stan JonesCommunity Expert
Community Expert
June 6, 2025

Sorry; I mean what is the format, etc.? H.264/mp4; ProRes/mov? I assume 1920x1080, but my test zoom recordings are often different from standard and much higher bitrates. Are these the original Zoom recordings as converted by Zoom? Or have they been processed in any way?

 

Was the sequence created by dragging the clip to the new icon?

 

Stan

 

S
Community Manager
Sumeet_Kumar_ChoubeyCommunity Manager
Community Manager
May 27, 2025

Hi Ted-Bender,

Welcome to the community. Please share a screenshot of the Sequence settings & Export Settings that you have used. Also, have you made any scale changes to that clip in the timeline?

 

Thanks,

Sumeet

T
Ted-BenderAuthor
Participating Frequently
May 27, 2025

Hi Sumeet,

 

screenshots are attached. No, i scale a jpg, but not the original mp4-recording.1920*1080 in, 1920*1080 out.

 

Thanks,

Thed

S
Community Manager
Sumeet_Kumar_ChoubeyCommunity Manager
Community Manager
May 29, 2025

Thanks for the details. Have you tried exporting in any other format (like QuickTime > Apple ProRes) to see if it's exporting properly?


-Sumeet

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