| Voltage Controlled Filter (VCF) | |
| A
filter in an analogue synthesizer which changes the cutoff frequency (in
a low pass filter or high
pass filter) or the centre frequency
(in a band pass filter) according
to the amount of a control voltage.
Controls may include cutoff or centre frequency (depending on filter type), slope, bandwidth and resonance or Q. All or some of these may be voltage controllable. |