analogue solutions
Semblance/Telemark
e&oe (c) 5-3-09
10
MODULATION SOURCE rotary switch
This selects the modulation source for either PWM or FM and is routed to the control
above.
The source options are;
EG1
for pitch sweeps. Good for percussion sounds
EXT1
for sound effects and additional modulation
LFO
for vibrato and trill effects
VCO2 Square wave
for frequency modulation effects
Select the source that you want to use to modulate PWM/FM.
PULSE WIDTH
This control allows manual shaping of the pulse wave output. It alters the pulse width
(duty cycle) of the pulse wave. In a central position a square wave is produced (50% duty
cycle). Try this control and listen to how the tone of the waveform changes. When using
Pulse Width Modulation, it is best to set the Pulse Width control to centre, otherwise the
sound may cut-out.
VCO2
FINE TUNE
Controls fine pitch adjustment of VCO2. Use this to tune VCO2 to your other instru-
ments or VCO1.
TUNE
Controls the course pitch of VCO2. Range is about +/- 2 octaves. Use this to tune
VCO2 to your other instruments or to shift the VCO pitch up or down an octave compared
to the VCO1.
MODULATION
This controls the amount of modulation to either pulse width or pitch from the modula-
tion source selected by the SOURCE switch.
Turn this knob clockwise in increasing amounts to apply pulse width modulation (PWM)
