Filters Module
Dual mode filter module includes two Moog lowpass-resonant filters in parallel to stereo output or a
highpass and lowpass-resonant filters in series, for highpass, bandpass, or lowpass filtering.
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CUTOFF control sweeps the frequencies of both filters throughout the audio range.
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SPACING control sets the spacing between the frequencies of the two lowpass filters or controls the
frequency of the highpass filter, over a +/-3 octave range.
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RESONANCE control adjusts the resonance of both filters, from none to filter oscillation.
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KEYBOARD CONTROL AMOUNT control sets how much the filters open and close as the player presses
different keys on the keyboard controlling the Voyager Rack Mount.
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DUAL LOWPASS/ HIGHPASS-LOWPASS switch selects between two lowpass filters in parallel or a lowpass
and highpass filter in series.
Envelopes Module
The Envelopes Module generates two wide-range ADSR (Attack Decay Sustain Release) envelopes.
The Filter Envelope sweeps the filter and is available for modulation shaping. The Volume Envelope
shapes the overall volume.
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Two ATTACK controls determine the attack times of the envelopes.
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Two DECAY controls determine the decay time constants of the envelopes.
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Two SUSTAIN controls determine the sustain levels of the envelopes.
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Two RELEASE controls determine the release time constants of the envelopes.
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AMOUNT TO FILTER control determines how much the filter envelope will open and close the filter, from
full negative (inverted envelope) to full positive (non-inverted envelope).
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ENVELOPE GATE switch selects whether the envelopes will be triggered by the keyboard or by
programmable envelope gate sources, including Keyboard Gate, S+H Gate (LFO), and MIDI Clock, allowing
independent triggering of the two envelopes.
LFO Module
Low Frequency Oscillator generates triangular, square, Sample & Hold, and smoothed Sample &
Hold waveforms for use as modulating signals.
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RATE control sets the LFO rate over the range 0.2 Hz (one cycle every five seconds) to 50 Hz (50 times a
second).
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SYNC selector selects LFO synchronization source to be from the keyboard gate, MIDI Clock, external
gate, or off (no synchronization).
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RATE LED provides visual indication of the LFO rate.
Modulation Busses Module
Selects the sources, destinations, and shaping signals for the MOD WHEEL bus and the PEDAL/ON
bus.
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Two SOURCE selectors select the modulation source from the LFO waveforms, Oscillator# 3, the MOD2
Voltage, or a software selectable source whose default is noise.
