Alesis QSR 64 manual Aftertouch Depth -99 to, Wave 8 choices, Filter LFO

Editing Programs: Chapter 6

Aftertouch Depth (-99 to 99) Page 7

This is the modulation amount of Aftertouch over 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 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, see the diagram in the Wave section of the Pitch LFO description on page 76.

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.

Delay (00 to 99) Page 3

This is the amount of time that is to occur before the LFO fades in. Sometimes, it is desirable to have modulation come in a moment or two after a note has been played, rather than starting instantly. The higher the value, the slower the LFO fades in.

Trigger (Mono, Poly, Key Mono, or Key Poly) Page 4

The Trigger parameter determines how the LFO should be triggered, or started. There are four possible settings: Mono, Poly, Key Mono and Key Poly. A description of these settings is found in the Trigger section of the Pitch LFO description on page 77.

Level (00 to 99) Page 5

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

QSR Reference Manual 32