Future-retro XS Manuel d'utilisateur télécharger pdf (Page 26)

ANALOG CONTROLS

OSCILLATOR B MODULATION

The B AMOUNT, B MOD SELECT, and B ENV 1 controls are used to modulate the frequency of

Oscillator B.

The B AMOUNT control sets the amount of modulation that the B MOD SELECT source will have on

Oscillator B’s 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.

The B MOD SELECT control selects which modulation source will be used to alter the frequency of

Oscillator B.

In the EXT position, any external control voltage connected to the OSC MOD input jack can be used to

modulate the frequency of Oscillator B. Keep in mind that positive control voltage will increase the

oscillator’s frequency, while negative control voltages will decrease the oscillator’s frequency.

The LFO setting will route the internal LFO to modulate Oscillator B. This LFO waveform will range

from –5 to +5 volts, causing Oscillator B’s frequency to rise above and fall below the normal frequency

for a note’s pitch. You can use this to create vibrato-like effects.

The LFO MW setting lets the Mod Wheel messages from a MIDI keyboard control the amplitude of

LFO signal used to modulate Oscillator B’s frequency. In this way, one could record Mod Wheel

messages into a MIDI sequencer to animate the effect the LFO will have on Oscillator B’s frequency.

The MOD W setting will route the Mod Wheel messages from a MIDI keyboard to modulate Oscillator

B’s frequency. With your mod wheel set to 0, there will be no affect on Oscillator B’s pitch. Increasing

the value of your mod wheel will cause Oscillator B’s frequency to increase accordingly.

The VEL setting will route Velocity messages from a MIDI keyboard to modulate the frequency of

Oscillator B. The exception here is that if an external control voltage is inserted into the VEL IN jack,

this external control voltage will override Velocity messages received from the MIDI keyboard.

The WAV A setting routes Oscillator A’s waveform, as determined by the WAVE A control setting, to

modulate the frequency of Oscillator B. Use this to create direct FM sounds. Note that all of Oscillator

A’s waveforms, including white noise range from –5 to +5 volts, causing Oscillator B’s frequency to

rise above and fall below the normal frequency for a note’s pitch.

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Future-retro XS Manuel d'utilisateur Page 26