Audio Damage Ronin - Manual (Page 20)

20
The Rate slider determines how fast the output of the LFO varies
over time. If the sync button is not turned on, the LFO’s rate can be
varied from one cycle every 100 seconds (that is 0.01 cycles per
second, abbreviated 0.01 Hz) to ten cycles every second (10 Hz).
The Shape slider and buttons work together to control how the
LFO’s output varies over time. The buttons let you choose one of
four waveforms, with triangular, rectangular, sinusoidal, and
randomly determined shapes. The Shape slider changes the basic
waveform in different ways, depending on which waveform is chosen
with the buttons.
 If the saw wave is selected, and the Shape slider is set to the middle of its range, the output of the LFO
rises and falls evenly between its lowest and highest values, creating a symmetric triangular wave. If you
rotate the Shape slider to the left, the LFO output rises more quickly and falls more slowly, creating what
is often called a sawtooth wave. If you rotate the Shape slider to the right, the LFO rises more slowly and
falls more quickly, creating what is called a ramp wave.
 If the pulse wave is selected, and the Shape slider is set to the middle of its range, the output of the LFO
jumps between its lowest and highest values, staying for an equal period of time at both values. If you
rotate the Shape slider to the left, the output stays at its highest value for a shorter period of time. If you
rotate the Shape slider to the right, the output stays at lowest value for a shorter period of time. In
engineering terms, the Shape slider varies the duty cycle of the rectangular wave.
 If the sine wave is selected, and the Shape slider is set to the middle of its range, the output of the LFO
varies smoothly between its lowest and highest values. The difference between a sine wave and a triangle
wave is that the triangle wave abruptly changes direction when it reaches its highest and lowest values;
whereas the sine wave gradually slows down, stops, and speeds up again when it changes directions.
Turning the Shape slider warps and skews the sine wave without creating any sharp corners in its shape.
Its effect is far easier to hear than to describe.
 If the random wave is selected, and the Shape slider is turned all the way to the left, the output of the
LFO jumps to a random value, changing at a rate determined by the rate slider. As you rotate the Shape
slider to the right, the output moves more slowly from one random value to the next.
The following diagram illustrates the different modulation signals generated by different settings of the shape
and wave controls: