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Pixel_held
Participant
June 22, 2023
Answered

Video export has worse quality than original

  • June 22, 2023
  • 2 replies
  • 555 views

Hello all,
this text was translated with Deepl.

When I export a video after editing, the video quality is a bit worse afterwards. When importing, I selected "Change project settings".
The original is a recording from OBS, and was then changed from MKV to MP4 by OBS.

I did the export with the setting "Computer", 3840x2160, MP4 - XAVC-S, High.
created. For this question, I did not edit or change the video.
However, I spent half the day trying many different custom settings. Unfortunately, I don't have the know how here.

Here are the video details of the original:

 

Allgemein
Vollständiger Name : 2023-06-22 16-23-14.mp4
Format : MPEG-4
Format-Profil : Base Media
Codec-ID : isom (isom/iso2/avc1/mp41)
Dateigröße : 2,50 GiB
Dauer : 11 min 52s
Modus der Gesamtbitrate : konstant
Gesamte Bitrate : 30,2 Mb/s
Bildwiederholungsrate : 60,000 FPS
Kodierendes Programm : Lavf60.3.100

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format-Profil : High@L5.1
Format-Einstellungen : CABAC / 4 Ref Frames
Format-Einstellungen für CABAC : Ja
Format-Einstellungen für RefFrames : 4 frames
Codec-ID : avc1
Codec-ID/Info : Advanced Video Coding
Dauer : 11 min 52s
Bitraten-Modus : konstant
Bitrate : 30,0 Mb/s
Breite : 2 560 Pixel
Höhe : 1 440 Pixel
Bildseitenverhältnis : 16:9
Modus der Bildwiederholungsrate : variabel
Bildwiederholungsrate : 60,000 FPS
minimale Bildwiederholungsrate : 58,824 FPS
maximale Bildwiederholungsrate : 62,500 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scantyp : progressiv
Bits/(Pixel*Frame) : 0.136
Stream-Größe : 2,49 GiB (99%)
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
mdhd_Duration : 712283
Codec configuration box : avcC

 

 

 

Here are the video details of the export:

Allgemein
Vollständiger Name : Neues Videoprojekt.mp4
Format : MPEG-4
Codec-ID : M4V (M4V /mp42/isom)
Dateigröße : 357 MiB
Dauer : 11 min 52s
Modus der Gesamtbitrate : variabel
Gesamte Bitrate : 4 202 kb/s
Bildwiederholungsrate : 59,940 FPS
Kodierungs-Datum : 2023-06-22 19:00:30 UTC
Tagging-Datum : 2023-06-22 19:00:32 UTC
TIM : 00:00:00:00
TSC : 60000
TSZ : 1001

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format-Profil : High@L5.2
Format-Einstellungen : CABAC / 4 Ref Frames
Format-Einstellungen für CABAC : Ja
Format-Einstellungen für RefFrames : 4 frames
Format settings, GOP : M=3, N=59
Codec-ID : avc1
Codec-ID/Info : Advanced Video Coding
Dauer : 11 min 52s
Source duration : 11 min 52s
Bitrate : 4 038 kb/s
Breite : 3 840 Pixel
Höhe : 2 160 Pixel
Bildseitenverhältnis : 16:9
Modus der Bildwiederholungsrate : konstant
Bildwiederholungsrate : 59,940 (60000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scantyp : progressiv
Bits/(Pixel*Frame) : 0.008
Stream-Größe : 343 MiB (96%)
Source stream size : 343 MiB (96%)
Sprache : Englisch
Kodierungs-Datum : 2023-06-22 19:00:30 UTC
Tagging-Datum : 2023-06-22 19:00:30 UTC
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Codec configuration box : avcC

 

 

 

Can you possibly spot the error here?
What can I do?

This topic has been closed for replies.
Correct answer Pixel_held

I did it!
My mistake was this:
I just dragged and dropped the files into the timeline. But this leads to crazy results, no matter if I adjust the settings or not. I have to start a project before, choosing a resolution AVCHD - QFHD 16x9 59.94 even if it exceeds the resolution of my video. Then I specified the specs of my raw footage in the Custom Settings. Now I don't have any quality loss.
Apparently Adobe Premiere Elements downscales the files in advance when you drag and drop the files in without having a project setting selected. What you do afterwards doesn't matter, since the losses have already occurred.

2 replies

P
Pixel_heldAuthorCorrect answer
Participant
June 24, 2023

I did it!
My mistake was this:
I just dragged and dropped the files into the timeline. But this leads to crazy results, no matter if I adjust the settings or not. I have to start a project before, choosing a resolution AVCHD - QFHD 16x9 59.94 even if it exceeds the resolution of my video. Then I specified the specs of my raw footage in the Custom Settings. Now I don't have any quality loss.
Apparently Adobe Premiere Elements downscales the files in advance when you drag and drop the files in without having a project setting selected. What you do afterwards doesn't matter, since the losses have already occurred.

Peru Bob
Community Expert
Peru BobCommunity Expert
Community Expert
June 22, 2023

You are exporting to larger pixel dimensions than the original, so it will lose quality.

P
Pixel_heldAuthor
Participant
June 23, 2023

Thank you for your reply. I have tested it in different versions. Here is an example with the following settings:
HD 1080
1920x1080
MP4 - H.264
Quality: High

 

The new export:

Allgemein
Vollständiger Name : E:\youtube\Neues Videoprojekt2.mp4
Format : MPEG-4
Format-Profil : Base Media / Version 2
Codec-ID : mp42 (mp42/mp41)
Dateigröße : 137 MiB
Dauer : 11 min 52s
Modus der Gesamtbitrate : variabel
Gesamte Bitrate : 1 617 kb/s
Bildwiederholungsrate : 29,970 FPS
Kodierungs-Datum : 2023-06-23 13:57:23 UTC
Tagging-Datum : 2023-06-23 14:00:02 UTC
TIM : 00:00:00:00
TSC : 30000
TSZ : 1001

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format-Profil : Main@L4.2
Format-Einstellungen : CABAC / 4 Ref Frames
Format-Einstellungen für CABAC : Ja
Format-Einstellungen für RefFrames : 4 frames
Codec-ID : avc1
Codec-ID/Info : Advanced Video Coding
Dauer : 11 min 52s
Source duration : 11 min 52s
Bitrate : 1 455 kb/s
Breite : 1 920 Pixel
Höhe : 1 080 Pixel
Bildseitenverhältnis : 16:9
Modus der Bildwiederholungsrate : konstant
Bildwiederholungsrate : 29,970 (30000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scantyp : progressiv
Bits/(Pixel*Frame) : 0.023
Stream-Größe : 124 MiB (90%)
Source stream size : 124 MiB (90%)
Sprache : Englisch
Kodierungs-Datum : 2023-06-23 13:57:24 UTC
Tagging-Datum : 2023-06-23 13:57:24 UTC
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Codec configuration box : avcC

 

I'm also attaching a picture showing the difference between the original and the 2 exports:

B
Community Expert
Bill SpragueCommunity Expert
Community Expert
June 23, 2023

I second Bob's response. 

 

I can't translate all of the data you posted and I don't use OBS.  The best you can do it match the original quality.  There is no upscaling available.

 

1.  Start the project by setting the project setting to match the original.  Do that by sliding a primary clip to the timeline.  

2.  Do your editing.

3.  At output you should pick a default choice similar to your origninal.  You can also try "Match Source" settings under the "Advanced" button in the output dialog.  

 

The output and the original should look similar unless you've applied adjustement or effects. 

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