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English
If the width of the pulse waveform (the ‘Pulse Width’) is altered dynamically in the modulation
matrix, the harmonic content of the waveform is made to constantly change. This can give the
waveform a very ‘fat’ quality when the pulse width is altered at a moderate rate.
A pulse waveform sounds the same whether the duty cycle is – for example - 40% or 60%,
since the waveform is just “inverted” and the harmonic content is exactly the same.
50%
40%
10%
60%
Noise
Noise is basically a random signal, and does not have a fundamental frequency (and therefore
has no pitch property). Noise contains all frequencies, and all are at the same volume. Because
it possesses no pitch, noise is often useful for creating sound effects and percussion type
sounds.
Volume
Harmonic
1
Sine Wave
Sawtooth Wave
Volume
Volume
Harmonic
Square Wave
Volume
Harmonic
1
2
3
4
5
Volume
Harmonic
1
3
5
7
Triangle Wave
1
2
3
4
5
Harmonic
1
2
3
4
5
Noise
Ring Modulation
A Ring Modulator is a sound generator that takes signals from two oscillators and effectively
“multiplies” them together. Circuit Mono Station’s Ring Modulator takes the waveforms
from Oscillator 1 and Oscillator 2 as its inputs. The resulting output depends on the various
frequencies and harmonic content present in each of the two oscillator signals, and will consist
of a series of sum and difference frequencies as well as the frequencies present in the original
signals.
OSC
1
OSC
2
X
Summary of Contents for Circuit Mono Station
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