Vocoder effect on the S90 XS/S70 XS.

Last Update: 09/28/2010

Connecting microphone into Mic input jack (combo jack), you can play robot voice and harmony.


The Principle of vocoder as it relates to human vocal structure.

For human voice, sound generated in vocal cords is resonated by mouth and nose. This resonance part has frequency like feature, which functions as a type of filter generating numerous  formants.

For vocoder, Export characteristic of this filter from the voice inputted from microphone and duplicates voice formant by numerous band pass filter. By using this filter to instrument sound, robot voice is created.

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