General Usage
‘Tyso Daiko’ produces a drum ‘hit’ sound when a trigger signal (approx. +3v rising
edge) is applied to either trigger input. Trig 1 is normalised to Trig 2 meaning it will
trigger both voices when Trig 2 is unpatched. The two other trigger inputs - Acc
(Accent) and Choke - respectively either further (de)emphasise the hit sound or
immediately stop it in the presence of a trigger signal.
The actual ‘hit’ sound is defined by the control knob positions and associated
control voltage input levels. All control knobs are offsets - any incoming control
voltage is added to them. They do not attenuate incoming control signals. Control
inputs are all approx -5v to +5v.
Each voice’s sound is produced by a ‘ramped’ wavetable oscillator changing
pitch between the defined start and end frequencies at a rate set by the rate
control. The surface control optionally then adds a ‘click’ or attack envelope to the
sound and the release controls the sounds release envelope. All these parameters
are shared between both voices but voice one is passed through an analog EQ
whilst voice 2 is passed through a wave folder - each of these sections have their
own controls and inputs also.
Pitch Section Controls
A ‘ramped’ oscillator provides waveforms for both voices sweeping between
start and end pitches at a defined rate and offset via a base pitch.
The ‘Rate’ control sets the rate of travel between the start and end pitches,
looping back around once a sweep is completed. Pitch sweep is disabled with the
Rate control fully counter clock wise (CCW).
The Start control sets the start frequency of the sweep or a fixed offset if pitch
sweep is disabled (rate full CCW).
The End control sets the end frequency of the pitch sweep. It is inactive when
the sweep is disabled.
The V/Oct input adds a base pitch offset to both the start and end frequencies. It
tracks approx 5 octaves.
