how to save 'screen recording' without noise?

[egerlach]

Hi,
short: saving a screen recording with MPEG ASP (Xvid)  and container AVI or MP4 results in a noisy video. Which options in avidemux  can I use to prevent that?

@added: running xubuntu 12.04, 64Bit,  Avidemux 2.5.4


That's what I did and want:  I recorded the screen in ubuntu with "recordMyDesktop" to a ogv file. I converted using "Handbrake" because otherwise mencoder or avidemux are deleting double frames, I receive a m4v file. I read this file by avidemux and can play the recording. No noise so far, wonderful! I cut the video using the "cut"-filter within avidemux and I  us  MPEG ASP (Xvid) and AVI or MP4 container. I save it and the result is noisy and grows in size! By the way: videos taken with my camera with real persons and so on become NOT (!) noisy using this codec and container (and standard settings in avidemux). My aim is to make a video clip with both, recorded desktop video and a camera video with persons. So I have to join the two different sources after cutting, adjusting fps, ... That works fine'so far, but screen recording becomes noisy. So: which options within avidemux are responsible for noise generation of screen recordings? I need to turn off noise.

thank you
Eckard

[Jan Gruuthuse]

Please delete your post in Windows section your running on Ubuntu. Your flavor of ubuntu  and is it 32/64-bit?
Version of avidemux used?
Check your preferences and unmark in Tab [Video]:
[ ] Horizontal debloking
[ ] Vertical deblocking
[ ] Deringing

see if this helps?
Have you other possibilities regarding the format used for recording with recordMyDesktop? experiment with those?

[egerlach]

I added ubuntu and avidemux version information in my first posting. The windows thread is removed.

I unmarked horizontal und vertical deblocking. Deringing was already unmarked. But it didn't help
The file size raised again about 30%.  But thx for you help.

Any other ideas?

[Jan Gruuthuse]

Yes try avidemux 2.6 build for ubuntu 12.04 64-bit found here: avidemux Cli/QT/GTK 2.6 64-bit deb download ubuntu 12.04 LTS these start from terminal box.
Try recording with the same frame rate as the target video?
I use(d) Kazam screencaster, but currently it crashes here.

[egerlach]

I  downloaded   avidemux3_2.6.0_64bit_r8136_12.04_debs  , I installed the gtk-version with all filters and add-ons  ...
and it WORKS!
No noise with default settings/options in avidemux3. Great! thank you Jan!

Eckard

[Jan Gruuthuse]

If you use QT with avidemux3-plugins-QT4, probably need to uninstall avidemux3-plugins-GTK-2.6.0-7xxx-Linux. More stuff in there is working then GTK. Developers have been very busy with 2.6 last months, weeks and days. Looks nicer every day. Can no longer miss this tool.

[egerlach]

I installed GTK only. Both versions 2.6 GTK and 3.0 GTK are now installed - and I need both versions because the select tool of 3.0 doesn't react. I can't cut sequences or copy them and paste. So I need the version 2.6 further on. I hope I need 2.6  only in this case.

When I use 2.6 again on a file the noise appears again. But cutting something or pastings something in 2.6 and then saving "copy" without filters allows to keep the video without noise So I can work in combination both versions 2.6 and 3.0.

BTW:  v3 can't be closed with the "X" of the window manager. It can only be closed with the avidemux menu.