How does the vocoder effect work in audacity? Noise-vocoded speech is a type of signal that is thought to simulate, for a normal-hearing listener, the perception of speech as heard through a cochlear implant. The modulator is usually the human voice, speaking or singing, while the carrier is usually a bright synthesizer.

What is a vocoder effect?Ī vocoder is an audio effect that lets you impose the dynamics and changing spectral content of one sound (the modulator) onto another (the carrier). Vocoder only works on unsplit stereo tracks. The Audacity Vocoder effect simulates a classical analog multiband vocoder, as described in the “History” section of the Wikipedia Vocoder page.