Synthesis

Controlling one signal with another one (Rocket engine effect - Subtractive synthesis of sound)

Controlling one signal with another one (Rocket engine effect - Subtractive synthesis of sound)
  1. How does Subtractive synthesis work?
  2. What does subtractive synthesis sound like?

How does Subtractive synthesis work?

Subtractive synthesis assumes that an acoustic instrument can be approximated with a simple oscillator that can produce waveforms with different frequency spectrums. The signal is sent from the oscillator to a filter that represents the frequency-dependent losses and resonances in the body of the instrument.

What does subtractive synthesis sound like?

Similar to a Square wave, they contain the odd harmonics of the original frequency. However, the volume of these harmonics drops much more quickly. This causes the waveform to look and sound much closer to a Sine wave, but still retain some of the “buzzing” quality of a Square wave.

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