[sdiy] Pitch shift in modulated BBD delays

[Gordonjcp]

On Wed, Jun 17, 2026 at 12:57:12PM +1000, Paul Perry via Synth-diy wrote:
> Whatever the common "chorus" effect produces, it certainly isn't anything
> remotely like an actual chorus.
> I suspect that replacing the regular LFO with a 1/F (fractal) noise at low
> frequency would be much more plausible.
> 
> paul perry Melbourne Australia

There is an effects unit called the Fairfield Shallow Water that uses a PRNG fed through a slew rate limiter to modulate a BBD which gives some nicely wobbly effects.

I thought about writing a plugin that uses something like a Lorenz attractor to generate a modulator for three delays, which might give quite a nice natural-sounding wobble to things, but I haven't done it yet.

-- 
Gordonjcp