Roland CG-8 User Manual page 42

Various playback methods
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You can use the Sound Control function in the following ways.
Modulating an effect at the timing of the detected audio peaks
Use the [MODULATION] knob to select [SOUND 1]–[SOUND 3], press the [DEPTH]
button so it is lit, and operate the parameter knobs. Modulation will be applied to the
parameter you control. The modulation will change according to the peak of the audio
input.
For details on modulating a Photo Effect, refer to "Applying modulation to the
parameters of a Photo Effect" (p. 66). For details on modulating a Stamp Effect, refer
to "Applying modulation to the parameters of a Stamp Effect" (p. 77).
Switching patches at the detected audio peaks
If you want patches to switch automatically at the timing of the detected peaks, set the
[AUTO SWITCH] to [SOUND].
* Independently from the method of control using the peaks detected by the Sound Control
function, there are also effects that respond directly to sound. For these effects, the input level
adjusted by the [INPUT LEVEL] knob will directly affect how the effect behaves. For details,
refer to "Photo Effects List" (p. 112) and "Stamp Effects List" (p. 119).
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