Alesis QS7.1, QS8.1 manual Mod Wheel Depth -99 to, Aftertouch Depth -99 to, Filter LFO

Editing Programs: Part 8

Level (00 to 99) Page 5

This is the base output level of the Pitch LFO. If you want to have a constant value of vibrato, even without using the Mod Wheel or Aftertouch, set LEVEL above 00. The Mod Wheel and Aftertouch can add to or subtract from this base level. Example: If Level is set to 10 and the Mod Wheel parameter (see the next paragraph) is set to 10, there will always be some vibrato, and raising the Mod Wheel will add more vibrato. On the other hand, if the Mod Wheel parameter is set to -10, raising the Mod Wheel to the top will cancel out all vibrato.

Mod Wheel Depth (-99 to 99) Page 6

This parameter sets how much the Mod Wheel will increase or decrease the Pitch LFO’s Level. A positive value raises the level when the Mod Wheel is moved up, and lowers the level when it is moved down. Negative settings of this parameter will decrease the output level of the Pitch LFO as the Mod Wheel is raised. Since the output level of the Pitch LFO cannot be less than zero, a negative setting of the Mod Wheel parameter will have no effect unless there is Pitch LFO already occurring because of some other factor like the Level parameter (see the previous paragraph) or Aftertouch (see the next paragraph).

Aftertouch Depth (-99 to 99) Page 7

This parameter sets how much the Aftertouch will increase or decrease the Pitch LFO’s Level. A positive value raises the level as more Aftertouch is applied. A negative value will lower the amount of Pitch LFO level as more Aftertouch is applied.

FILTER LFO

The Filter LFO function (press [7]) is most often used to apply tremolo-like or "wah-wah" effects to a sound.

✪The following Filter LFO variables will affect the sound only if the FILTER LFO DEPTH (on Page 6 of the FILTER function) is set to a value other than 0 , or,if Filter LFO is a source in the MOD function.

Also note that the Filter LFO may have no effect if some other modulation source or setting has already pushed the filter cutoff frequency to its maximum.

Wave (8 choices) Page 1

The waveform determines the shape of the LFO. Select either Sine, Triangle, Square, Up Sawtooth, Down Sawtooth, Random+-, Noise or Random+. For a graphic representation of these waveforms and additional discussion on how to use the LFOs, see the diagrams and notes on page 144.

Speed (00 to 99) Page 2

Controls the speed or rate of the LFO. For fast modulation, increase this value. For slower modulation, decrease this value.

QS7.1/QS8.1 Reference Manual