LMMS / lmms

Cross-platform music production software
https://lmms.io
GNU General Public License v2.0
7.81k stars 986 forks source link

Add Chebyshev, Inverse Chebyshev, and Elliptical Filters to Equalizer #4582

Open LostRobotMusic opened 5 years ago

LostRobotMusic commented 5 years ago

I think this would be a fun addition to the current 1.2 Equalizer.
image The current filter used is Butterworth. If we were to add the other ones as options, that would allow for some interesting uses, not to mention some absurdly steep filter slopes! I've already spent... a lot of hours researching trying to figure out how to add this, but I haven't had much luck. Here's the guide that was used for the current LMMS 1.2 Equalizer: http://www.musicdsp.org/files/Audio-EQ-Cookbook.txt

enp2s0 commented 5 years ago

This would be much better than having to use 2-4 filter handles to get steep cutoffs.