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Old 30th November 2021, 17:50   #11  |  Link
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Is there a special scene or frame you have issues with? I tested with the Carrie call (I use tr 1 and 2 and thSAD=400 for the 2nd call) and found it good enough.
Also keep in mind this is a BW film so plane=0 and chroma=false.

The film shows "fizz" grain. It's in between the Carrie example and something stronger like 300. I found that a blksize of 32 is good to avoid catching these kind of big grains, along refinemotion this is a good approach. Filters like SPresso or STTWM are not suited here because they only filter minimal change noise, these are more for DVDs or faint grain.
My general approach with strong grain is a rather strong prefilter (with LFR), and a rather not so strong filter without LFR.

Personally for my encodes I don't like the clean look because they either look psychovisually blurry or sometimes it shows the "screen" effect, like grain stuck over a glass, so I apply some artificial grain after denoising.
i7-4790K@Stock::GTX 1070] AviSynth+ filters and mods on GitHub + Discussion thread

Last edited by Dogway; 30th November 2021 at 17:59.
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