remove too much noise?

[pio_fawad]

hi,
I am using Megui to encode Video's, two pass method


source : : encoded
4586 bitrate : 750 bitrate
4.56GB : 550MB
MKV : MKV
1h,46min : 1h,46min
1280x686 : 1280x686

but encoded video conatain too much noise

e.g:
Screenshot:
http://lulzimg.com/i15/f548ad.jpg


please Suggest some Tuts to better the quality
any plugin or filter?

Thanx

waiting for reply....


Source is crystal clear ..........


i am using this script:

LoadPlugin("C:\Users\fawad\Desktop\HDRAGC.dll")
LoadPlugin("C:\Users\fawad\Desktop\MeGUI_1911_x86_WithoutInstaller\tools\ffms\ffms2.dll")
FFVideoSource("C:\Users\fawad\Desktop\refined-made.in.dagenham-720p.mkv").AssumeFPS(24000,1001)
#deinterlace
#crop
#resize
LoadPlugin("C:\Users\fawad\Desktop\MeGUI_1911_x86_WithoutInstaller\tools\avisynth_plugin\Convolution3DYV12.dll")
Convolution3D("movielq") # Heavy Noise

[mastrboy]

looks like bitrate starved encode/compression artifacts, considering you encoded 1280x686 with only 750 in bitrate if i understood your post correctly...?

[mike20021969]

As everything is identical apart from bitrate, the quality will immediately suffer if you use anything less than you current 4586 video.
So the higher the bitrate, the less you may notice on the conversion.

You have to increase the bitrate substantially for your current output resolution, or lower the resolution to match the low bitrate.
Either should (may) make it less noticable.
For me, 1280x720 @ 1500kbps still contains artifacts.

[pio_fawad]

thanx agree with u @mike20021969 and @mastrboy , but there are some encoders which are doing the same with this much bitrate 750kbps , but there encodes doesn't contain that kind of artifacts as in my encodes.

Waiting for an expert answers thanx

i am currently using plugin spline 64 and heavy noise filter in avisnyth

[manono]

...but there are some encoders which are doing the same with this much bitrate 750kbps
Go ask them then. And I seriously doubt they're using resolutions of 1280x686 if they really know what they're doing.
Waiting for an expert answers
You've already received two expert answers.

[pio_fawad]

Go ask them then. And I seriously doubt they're using resolutions of 1280x686 if they really know what they're doing.

You've already received two expert answers.

if i have to asked them then why i came here ?? they don't tell..

w8ting for expert answer :thanks:

[manono]

Did you post the script you're using? Or are you also keeping to yourself the secret to making lousy encodes?

[pio_fawad]

Did you post the script you're using? Or are you also keeping to yourself the secret to making lousy encodes?

added now check and answer :thanks: for ur attention

[manono]

Did you leave out your deinterlace, crop, and resize filters? Do people still use Convolution3D? It may be responsible for at least part of the problem.

And the people that make such great encodes (of the same movie?) using a bitrate of 750, do they use the same resolution as yours? That first pic, that's not noise, but the 'dancing blocks' caused by bitrate starvation. Can't you tell that all detail has been destroyed? Just look at those guys' faces.

[Guest]

Source violates rule 6. Closing. Further violations will be struck.