is the triangle and sine mode directly modulating the delay t? I assume the lfo puts out triangle, and sine is roughly achieved by filtering the triangle wave.

since the pitch we hear is the rate of change (derivative) of the delay time, I think it would be as follows:

triangle mode:

Delay time: modulated by triangle wave

Pitch (rate of delay time change):

**square wave**(oscillates hard from pitch up to pitch down)

sine mode:

Delay time: modulated by approximate sine wave

Pitch (rate of delay time change): approximate sine wave (oscillates smoothly between pitch up and pitch down)

of course given the waves are formed by analog lfo, its probably not an exactly perfect triangle wave. But roughly speaking, is this correct? I’m doing some exploring on chorus types in fv-1 and want to make sure I’m understanding correctly.

@PedalPCB