Randomise amplitudes and/or frequencies of partials. CHORUS can create a chorus effect by randomly varying frequencies and/or amplitudes, but value ranges for amp spread and freq spread take the program well beyond its title. MODES 1. Amplitudes: randomise amplitudes only 2. Frequencies: randomise frequencies only 3,4. Freqs up/down: randomise frequencies upwards only (Mode 3) or downwards only (Mode 4). 5-7. Amps and Freqs: randomise amplitudes and frequencies (Mode 5); amplitudes, plus frequencies upwards (Mode 6); amplitudes, plus frequencies downwards (Mode 7). PARAMETERS amp spread Maximum random scatter of partial amplitudes. Values above c.400 seem to make little difference. Range: 1-1028. Typical chorus value (Mode 1):
40-100. T-V
freq spread
Maximum random
scatter of partial frequencies. Range:
Typical
chorus value (Mode 2): 1.01 or 1.02; double this for
Modes 3/4. T-V
NOTES To create a chorus effect, keep freq spread to a very small value (<1.05) and/or keep amp spread to a medium value (40-100). Higher values for freq spread create a burbling effect, while those for amp spread sound much the same for any medium or high value.
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