Subtraction of sound

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Subtractive synthesis - a method of synthesizing a sound by subtracting harmonics, by processing the waveforms generated by the oscillators. It was the first method historically used in synthesizers.

The course of the parameters (shape, frequency, impulse waveform) is processed by the next block (s) of the instrument. These include:

The type of blocks used and the way they are combined are called synthesis paths. Its modification (switching connections) is only available in modular synthesizers. Other synthesizers allow you to control only the parameters of individual modules. The subtraction was initially implemented by analogue circuits, and the blocks were controlled by voltage. Today, in most cases DSPs are used (or algorithms for software), and the instruments in which they are applied are classed as Virtual Analog. Example Block diagram of the synthesizer used in the example

The following example shows the steps for shaping the sound.

wiki

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