The RANDOM section is essentially a Sample and Hold circuit that generates
stepped control voltages for voltage control of other modules. It has an
independent S&H RATE control as well as an output LEVEL control and two
switches. The FREE/GATE switch selects if the Sample and Hold circuit works from
the internal clock (FREE setting) or from the gate signal (GATE setting), which
means that the voltage on the output will change with each incoming gate. The
OSC3/S&H switch selects which signal is sent to the patch matrix. The matrix has
only 16 inputs, therefore the RANDOM shares its matrix input with the
OSCILLATOR 3 pulse output.
The matrix mixer has a dedicated S&H Input where you can assign any signal for
the S&H circuit. For example, a triangle-sawtooth wave (depending on the
waveform knob setting) from Oscillator 3 will generate staircase-like control
voltages on the output, noise will generate random voltage steps. Experiment with
various inputs and S&H RATE settings! With high S&H RATE settings and an audio
signal applied to the S&H Input, you can achieve an analogue bitchrush effect.
The RINGMODULATOR, also known as a Four-Quadrant Multiplier, is a special
case of amplitude modulation - one signal changes the level or – “multiplies” – the
level of a second signal.
Two signals – A and B - are required in order for the ring modulator to operate (if
you multiply by zero, you get zero), for example two oscillators both running at
audio rate or an oscillator and microphone patched into one of Inputs of the
SYNTRX II. Signal A is assignable on the matrix mixer’s Ringmod A input, while
signal B is selected by rotary switch SOURCE B. Depending on the input signal
frequency relationship, the output is a complex set of component tones, typically
metallic, bell-like sounds. When a voice from a microphone is modulated by an
oscillator, a robotic speech effect can be achieved.
Adjust the LEVEL of the ringmodulator output to your taste.
RANDOM
RINGMODULATOR
RANDOM
S&H RATE
LEVEL
GATE
FREE
S&H
OSC 3
RINGMODULATOR
SOURCE B
LEVEL
9
Summary of Contents for SYNTRX II
Page 1: ...USER MANUAL...
