OttoVibe is a free multi fx and tremolo and vibrato and panner and chorus and lfo Audio Unit plugin developed by Music Unfolding. Compatible OS(s): macOS.
OttoVibe is an auto/touch effect with MIDI control. OttoVibe works much like an envelope-controlled filter, except that instead of a filter, it has a modulation section. The envelope controls the rate and depth of the modulation effect.
OttoVibe includes a variety of effects including tremolo, vibrato, panning, and chorus. Altogether, OttoVibe has eight different types of effects. The effects can be dynamically manipulated using “touch” or expression pedal controls, much the same way a touch wah works. Even though OttoVibe tends to be more subtle than its siblings (OttoPhormant and OttoPhilter), it is very expressive.
http://www.musicunfolding.com/