Future Retro XS - Manual (Page 30)

ANALOG CONTROLS
AMOUNT: The amount control sets the amount of modulation that the MOD SELECT source will have
on the filter’s cutoff frequency. When this control is rotated fully counter-clockwise, no
modulation will occur. As you rotate this control clockwise, the amount of modulation will increase.
MOD SELECT: The mod select control selects which modulation source will be used to alter the cutoff
frequency of the filter.
In the EXT position, any external control voltage connected to the FILTER MOD input jack can be used
to modulate the cutoff frequency of the filter. Keep in mind that positive control voltage will increase
the filter’s frequency, while negative control voltages will decrease the filter’s frequency.
The LFO setting will route the internal LFO to modulate the filter’s cutoff frequency. This LFO
waveform will range from –5 to +5 volts, causing the filter’s frequency to rise above and fall below the
normal frequency for the filter set by the cutoff control. You can use this to create slow or fast sweeping
type effects.
The LFO MW setting lets the Mod Wheel messages from a MIDI keyboard control the amplitude of
LFO signal used to modulate the filter’s cutoff frequency. In this way, one could record Mod Wheel
messages into a MIDI sequencer to animate the effect that the LFO will have on the filter’s frequency.
The MOD W setting will route the Mod Wheel messages from a MIDI keyboard to modulate the filter’s
cutoff frequency. With your mod wheel set to 0, there will be no affect on the filter’s frequency.
Increasing the value of your mod wheel will cause the filter’s frequency to increase accordingly.
The WAVE B MW setting lets the mod wheel messages from a MIDI keyboard control the amplitude of
WAVE B’s signal which is used to modulate the filter’s cutoff frequency. In this way, one could record
Mod Wheel messages into a MIDI sequencer to animate the effect that WAVE B’s waveform will have
on the filter’s frequency.
28