ALESIS QS8.1 User Manual

Page 157

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Editing Programs: Part 8

QS7.1/QS8.1 Reference Manual

P

ITCH

LFO

The Pitch LFO function (press [6]) is most often used to apply vibrato to a Sound.

The following Pitch LFO variables will make a difference in the sound only if the PITCH LFO
DEPTH (on Page 6 of the PITCH function) is set to a value other than 0, or, if the Pitch LFO
is a source in the MOD function.

Wave (8 choices)

Page 1

The waveform determines the shape of the LFO. Select either Sine, Triangle, Square,
Up Saw, Down Saw, Random+-, Noise or Random+. Note that the two Sawtooth
waves and the Random+ wave are unipolar (positive-going only) and the rest are
bipolar (positive- and negative-going):

Note: The "unipolar" (positive-going) waveshapes tend to have a more noticeable
impact on Filter and Amplitude if they are routed negatively. This is also true of the
"Square" waveshape. To route them negatively, go to buttons [60], [70], and/or [80]
(depending on what LFO you're working with) and call up page 6 with the [PAGE]
buttons.

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.

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