User guide

Front Panel Elements (connued...)

RATIO/TIME POTENTIOMETER - this potenometer provides an oset to the oscillator 2 RATIO seng.

This is summed with the external RATIO input signal. The pitch of oscillator 2 is shied by an amount

proporonal to this sum. Oscillator 2’s frequency seng is also used to set the delay me for the echo

eect, thus the RATIO/TIME potenometer can be used to alter the delay me.

QUANT. BUTTON - this buon, when pressed, toggles quanzaon of the oscillator 2 frequency rao on

and o. When rao quanzaon is enabled the pitch of oscillator 2 is ed directly to the pitch of oscilla-

tor 1. The external PITCH2 input is ignored in this situaon. There are 16 dierent quanzed raos avail-

able: [1/8, 3/16, 1/4, 5/16, 3/8, 1/2, 5/8, 3/4, 1, 5/4, 3/2, 2, 3, 4, 6, 8].

MODULATION INPUT ATTENUATORS - these mini-potenometers (without knobs) serve to adjust the

level of the modulaon inputs (those coming from the second row of jacks from the boom of the front

panel).

FINE and COARSE POTENTIOMETERS - these two potenometers provide an oset to the pitch for both

oscillators. This oset is summed with the external pitch input signals (PITCH1 and PITCH2), as well as

the RATIO signal in the case of oscillator 2, to produce the oscillator pitches.

MODULATION INPUT JACKS - the top row of jacks are used to input eight dierent modulaon signals.

These signals include:

RATIO: adjusts the rao of the frequency of oscillator 2 as compared to that of oscillator 1.

IFM: sets the level of the internal frequency modulaon of oscillator 1 by oscillator 2.

FM 1: audio rate linear frequency modulaon of oscillator 1.

FOLD CV: adjusts the amount of waveform folding imposed by the analog wave folder.

MOD A: audio rate modulaon input with a number of dierent modulaon targets.

SHAPE 1: modulates the shape of oscillator 1’s waveform within the current wavetable bank.

SHAPE 2: modulates the shape of oscillator’ 2s waveform within the current wavetable bank.

MOD B: low rate modulaon input with a number of dierent modulaon targets.

PEAK/LFO 1 LED - this LED indicates whether either of the two audio-rate modulaon inputs, FM 1 and

MOD A, have reached the limits of their range, and hence whether clipping of these signals is occuring.

If you see the PEAK LED come on, turn down the aenuator for these inputs. When oscillator 1 is op-

erang in LFO mode, this LED no longer signals the presence of peaks, but instead indicates the sign of

output 1 (i.e. the LED is illuminated whenever output 1 is posive).

INPUT JACKS - the four lemost jacks in the boom row are used to input the following signals:

PITCH 1: this input sets the pitch of oscillator 1. It has a 1 volt/octave scale factor.

PITCH 2: this input sets the pitch of oscillator 2. It has a 1 volt/octave scale factor. This jack is

normalized to the PITCH 1 jack, which means that if no cable is plugged into the PITCH 2 jack, the PITCH

2 input follows the signal input to the PITCH 1 jack.

SYNC: posive-going pulses input to this jack cause the oscillators to be synchronized, according

to the current SYNC mode sengs. These pulses are also used to trigger the percussive aacks when

the module is in PERC mode, and cause stepping of the presets when preset stepping is acvated.

FOLD IN: the signal input to this jack is fed to the input of the analog wavefolder circuitry. It is

normalized to the OUT 1 jack, so that if no cable is plugged into the FOLD IN jack, the input to the wave-

folder is taken from output 1.