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6

Oscillators

Each oscillator of 

troika

 has similar controls. The only difference 

between each oscillator is the 

Waveform Crossfade

 controls and the 

1V/Oct Link Toggle

 normalisations.

Frequency/Pitch

Coarse:

 The 

Coarse

 knobs control the fundamental frequency of 

the corresponding oscillator, effectively changing the pitch of all 
waveforms. 

• 

Turning the knob clockwise will increase the frequency.

• 

Turning the knob anticlockwise will decrease the frequency. 

Fine:

 The 

Fine

 knobs are used for minute control of the corresponding 

oscillator’s fundamental frequency and is relative to the frequency 
defined by the 

Coarse

 knob. This will also effectively change the pitch of 

all waveforms.  

• 

Turning the knob clockwise will increase the frequency.

• 

Turning the knob anticlockwise will decrease the frequency.

1V/Oct Input: 

The 

1V/Oct Inputs

 are bipolar control voltage inputs 

that are calibrated to 1V per Octave. 

• 

This is traditionally used for frequency control (musical pitch) sent 
from a sequencer or keyboard. 

• 

Control voltage is summed with the values set by the 

Coarse

 and 

Fine

 knobs.

1V/Oct Link Toggle:

 The 

1V/Oct Link Toggles

 will set 

1V/Oct Input 

normalisations between each oscillator. If a toggle is in the down 
position, the signal present at the uppermost oscillator’s 

1V/Oct Input 

is normalised to the next oscillator’s 

1V/Oct Input

. If a toggle is in the 

up position, normalisation will be broken. Inserting a secondary signal 
to the normalised

 1V/Oct Input 

will also break the normalisation. If a 

toggle is in the up position, no normalisation is configured.

Содержание troika

Страница 1: ...troika Triple Oscillator User Manual...

Страница 2: ...es 4 Installation Specifications 5 Overview 6 Oscillators Frequency Pitch 7 Frequency Modulation 8 Waveform Crossfade 9 Mixer 10 Patch Examples Detuned East Coast Synth Voice Triple FM Synth Voice Pol...

Страница 3: ...ssic waveforms and uses a unique control set of switches and crossfaders for truly analogue crossfading between waveshapes Between the three voices crossfading between any combination of classic waves...

Страница 4: ...cable is connected to 12V 4 Connect the 16 pin side of the IDC power cable to the 2x8 pin header on your Eurorack power supply confirming that the red stripe on the power cable is connected to 12V 5 M...

Страница 5: ...tive function iconic symbol of Russia Key 1 Coarse Frequency Controls 2 Fine Frequency Controls 3 1V Oct Inputs 4 1V Oct Link Toggles 5 Linear FM Inputs 6 Linear FM Attenuators 7 Sync Inputs 8 Wavefor...

Страница 6: ...orms Turning the knob clockwise will increase the frequency Turning the knob anticlockwise will decrease the frequency 1V Oct Input The 1V Oct Inputs are bipolar control voltage inputs that are calibr...

Страница 7: ...side bands to the original waveform Linear FM Attenuator The Linear FM Attenuator determines the depth of frequency modulation applied to the corresponding oscillator Turning the knob clockwise will i...

Страница 8: ...the down position the signal present at the Waveform Output will smoothly morph between a ramp waveform and a square waveform as the Waveform Crossfader moves from left to right Oscillator 2 If the Wa...

Страница 9: ...duty cycle ratio of the pulse waveform Turning the knob clockwise will increase the ratio of the pulse wave Turning the knob anticlockwise will decrease the ratio of the pulse wave The range of the P...

Страница 10: ...rs to ramp waveforms Connect the Mix Output to the audio input of a filter Connect the audio output of the filter to the audio input of a VCA Monitor the audio output of the VCA Set the fundamental fr...

Страница 11: ...ut of an envelope generator Connect the CV output of the envelope generator to a multiple Connect one copy of the envelope generator CV signal to the CV input of the filter and set the corresponding C...

Страница 12: ...r opens the filter and VCA allowing troika s signal to pass through More traditional East Coast patches would incorporate separate envelope generators for the filter and VCA Audio Path Create an East...

Страница 13: ...Audio Path Set all oscillators to desired waveforms Connect each Waveform Output to the audio inputs of separate filters Connect the audio output of the filters to the audio inputs of separate VCAs Co...

Страница 14: ...ct one copy of the envelope generator CV signals to the CV inputs of the filters and set the corresponding CV attenuators to desired positions Connect a second copy of the envelope generator CV signal...

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