MiSTer FPGA Forum

These filters are taken from JSIDPlay2 and are based on the work by Antti S. Lankila (https://bel.fi/alankila/c64-sw/index-cpp.html).
Converted to work with MiSTer by me.

How to use:
Extract the filters to your SD card (i.e /games/C64/Filters)
Load one of the filters using the "Load custom filters".
Select Custom 1/2/3 as your filter (doesn't matter which).


Enjoy!

Nice!!! I’ll give these a try!

This is really cool. You need to find some music/audio that uses the low-pass filter, preferably with resonance. The differences aren't subtle.
EDIT: The Airwolf music demo by 20cc lets you hear the difference well.
EDIT2: Axel F by Harlequin as well. Bass sounds seem to be the best to test with.
EDIT3: The Cybernoid II music also works well.