finebyfine
Well-known member
I'm working on an fv-1 one-off that is going to use an expressional pedal and had been a little anxious about the tracking speed being too slow because of the stability filters on the pots.
Here's a thread on the spin forums describing how to use a highpass filter to counteract the lowpass filter on the pots.
Code below is from user Don Stavely and reposted due to the often ephemeral nature of forums:
Here's a thread on the spin forums describing how to use a highpass filter to counteract the lowpass filter on the pots.
Code below is from user Don Stavely and reposted due to the often ephemeral nature of forums:
Code:
equ potfilt reg0
equ fastpot reg1
rdax pot0, 1
rdfx potfilt, 0.001 ; this is the shelving highpass filter
wrhx potfilt, -0.75 ; it cuts lower freqs by factor of 4
rdax fastpot, 0.75 ; this gives 4X recursive gain
wrax fastpot, 1 ; to recover full range