User Guide
22
OUTPUT (Continued)
VCA AMT IN
A control signal connected to this input will inuence Grandmother’s overall
output Volume. With the VCA TYPE switch set to DRONE, an external control
signal received here will entirely determine the output Volume. With the
VCA MODE switch set to ENV or KB RLS, a control signal received here will
be multiplied with the current parameter settings to determine the output
Volume, which is useful for synthesizing tremolo effects.
TIP: Patching the modulation WAVE OUT jack to the VCA AMT IN jack can
create some interesting AM (Amplitude Modulation) effects.
NOTE: With the VCA MODE switch set to DRONE and an external CV patched into the VCA AMT IN
jack, Grandmother’s output VCA will behave as a standard VCA whose level is set entirely by an external
control voltage. A voltage of 0V, or a negative voltage, will result in silence. As the voltage to this input
is increased, the output volume will also increase (+8V maximum).
VCA IN
This is an audio input to the VCA. Connecting an alternate audio source to this
input disconnects the output of the Filter from the input of the VCA.
REVERB IN
This is an audio input to the Spring Reverb. Connecting an alternate audio
source to this input disconnects the output of the VCA from the input of the
Spring Reverb.