Creating Sounds and Effects
4-19
The scale value determines the effective range of the Source controller. For
example, a scale value of 50% means that moving the controller through its full
range of motion moves the Destination parameter through 50% of its total range.
The upper and lower limits of the scale range are determined by the threshold
and intial parameter values. For example, if Dry Pan is set to center and Scale
is set to 100%R and the controller is moved through its full range, here’s how
different threshold values will affect the scale range limits:
• If threshold is set to 0, Dry Pan will vary between center and 100% right.
• If threshold is set to 127, Dry Pan will move between 100% left and center.
• If threshold is set to 64, Dry Pan will move from 100% left to 100% right.
Scale can be set to values greater than the range of the Destination parameter.
(For most parameters, scale can be set to at least twice the full range.) This
allows you to control the full range of a parameter with less than the full range
of a controller.
One of the most useful tempo patches is to use Tempo to control any of the
coarse delay parameters (PdlyHi, GlyHi, DlyLHi, etc.) to produce a delay with a
specific rhythmic value. Presets 17, 40, and 41 are examples of rhythmic Tempo
patches (MAT = MIDI Auto Tempo). The scale value is set to determine the
specific rhythmic duration as follows:
Rhythm Scale Value
1/4 2.00s
1/8 1.00s
1/8 triplet 666ms
1/16 500ms
1/16 triplet 333ms
1/32 250ms
The length of a rhythmic duration is limited by the maximum delay time available
for a given delay parameter and the tempo transmitted from the sequencer or
drum machine. In order to preserve an acceptable rhythmic relationship, when
the calculated delay value exceeds the maximum delay value for the parameter,
it will be repeatedly cut in half until it is within the parameter range. Gldlyhi (Delay/
Reverb) and Pdlyhi (Pitch/Delay) offer the widest ranges of rhythmic durations.
Using Scale with Tempo
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