Vibrato (viBRTO) A Vibrato effect modulates the pitch of the incoming signal at an even rate. Parameter 1 - The Number 2 Knob adjusts the rate (Speed) at which the pitch modulates. Ranges from 1 to 99. Parameter 2 - The Number 3 Knob adjusts the intensity (Depth) of the modulating pitch. Ranges from 1 to 99. The Number 4 and 5 knobs have no function when the Vibrato is selected. Rotary Speaker (ROTARY) Rotary Speaker is an emulation of a device that included a spinning horn and rotor (woofer). The rotation of these two speakers produced an interesting combination of the sound panning from side to side, as well as a slight pitch change due to speed of the sound coming towards, and then going away from the listener. Parameter 1 - The Number 2 Knob adjusts the rate (Speed) of the spinning speakers. Ranges from 1 to 99. Parameter 2 - The Number 3 Knob controls the intensity of the Effect. Ranges from 0 to 99. Parameter 3 - The Number 4 Knob controls the doppler effect which is the ratio between the horn and the rotor positions. Ranges from 1 to 99. Mod Level - The Number 5 Knob controls the mix of wet and dry signal. Ranges from 0 (all dry) to 99 (all wet). YaYa� (yaya) The YaYa� is an effect exclusive to DigiTech products.The YaYa� is controlled by the Expression Pedal and combines the characteristics of a wah and a flanger together providing a unique talk box type of effect. As the Expression Pedal is rocked back and forth, the guitar appears to say �Yah.� The YaYa� effect must be linked to the Expression Pedal in order to function. See page 18 for more information on linking the Expression Pedal. Parameter 1 - The Number 2 Knob adjusts the Pedal. Parameter 2 - The Number 3 Knob adjusts the intensity of the YaYa� effect. Ranges from 1 to 99. Parameter 3 - The Number 4 Knob adjusts the throaty quality of the YaYa� effect. Ranges from 1 to 50. Mod Level - The Number 5 Knob controls the mix of wet and dry signal. Ranges from 0 (all dry) to 99 (all wet). AutoYa� (AUTOYA) Like the YaYa�, an AutoYa� combines the characteristics of a Wah and a Flanger together creating an almost human vowel sound as if the guitar were saying �Yah.� The AutoYa� automatically provides this animation by modulating the sound at an even rate. Parameter 1 - The Number 2 Knob adjusts the rate (Speed) of the modulation. Ranges from 1 to 99. Parameter 2 - The Number 3 Knob adjusts the intensity of the AutoYa� effect. Ranges from 1 to 99. Parameter 3 - The Number 4 Knob adjusts the throaty quality of the AutoYa� effect. Ranges from 1 to 50. Mod Level - The Number 5 Knob controls the mix of wet and dry signal. Ranges from 0 (all dry) to 99 (all wet).