ALESIS QSR 64 - Manual (Page 62)

Editing Programs: Chapter 6
QSR Reference Manual 15
Modulation Wheel Depth (-99 to +99) Page 4
Determines how moving your controller's modulation wheel affects the filter cutoff
frequency. Example: With positive settings, moving a modulation wheel up raises the
filter cutoff frequency and moving it down lowers the filter cutoff frequency. With
negative settings, moving the modulation wheel up lowers the filter cutoff frequency
and moving it down raises the filter cutoff frequency .
Aftertouch Depth (-99 to +99) Page 5
At +00, aftertouch has no effect on the filter cutoff frequency. Applying aftertouch
with this parameter set to a positive value raises the filter cutoff frequency;
conversely, applying aftertouch with a negative value lowers the filter cutoff
frequency. The higher the number (either positive or negative), the greater the effect
for a given amount of aftertouch.
Many acoustic instruments sound brighter as you play them more forcefully; in
particular, brass gets brighter as you blow harder. Using aftertouch to increase a
sound’s brightness can give more control and realism with acoustic instruments.
Filter LFO Depth (-99 to +99) Page 6
At +00, the filter LFO has no effect. Higher positive values increase the amount of
filter LFO modulation. Negative values give the same apparent effect, but with
reversed LFO phase (i.e., if the filter cutoff frequency would normally be increasing
with depth set to a positive number, the cutoff would instead be decreasing at that
same moment had the depth been set to a negative number). Filter LFO parameters
(such as speed and wave shape) are programmed from within the FLFO Function
(see page 74).
Filter LFO is good for giving wah-wah effects at slower LFO speeds, and for adding
“shimmering” with higher LFO speeds.
Filter Envelope Depth (-99 to +99) Page 7
The Filter Envelope is one of the most important settings in making a program.
Many programs will use the Filter Envelope to determine the tonal character of the
sound over time (attack, decay, sustain, and release). At +00, the filter envelope has
no effect. Positive values raise the filter from the baseline cutoff frequency according
to the envelope shape, and negative values similarly lower the cutoff frequency. The
higher the number (negative or positive), the greater the effect. Filter Envelope
parameters (such as attack and decay time) are programmed within the Filter
Envelope Function (see page 64).
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