- controls the speed/rate of the LFO wave that controls the effect
- controls the depth/amplitude of the modulation (the size of the range in which the effect sweeps).
- controls the amount of distortion
- controls the input level of the effect. At higher gain settings a lot of effects can go into overdrive or distortion.
No forum threads about this effect yet.
Here's some code to post a link with image on forums, eBay, websites,...