The vocoder was developed by Bell Labs as an audio compression technique to save bandwidth when transmitting human conversations long distances.
Let’s dive into the vocoder, how it works, what it does, and how it’s been used in pop and electro music today. I also set the Release to something close to the release on the hats I'm working with - a good starting place would be anywhere from 80 ms to 150 ms, but this will vary based on the original signal.Words by Sam McNiece A history of the vocoder, showing its influence and popular vocoder plugins.įrom their humble beginnings as a way of condensing the human voice for transmission through cables underseas, the vocoder has had a long and storied history which included use in World War Two as a form of cryptography before it made Kraftwerk and Bambaataa sound like futuristic robots and spur on the creativity of millions. The Depth control determines how strictly the amplitude contour of the input signal will be applied to the carrier, which can be thought of as how much influence the input signal will have on the dynamics of the carrier. I wanted to keep the noise tight with the original hat loop, so I've cranked the depth to around 136% to better match the hats' amplitude envelopes. Since I was looking for a brighter sound with these hats, I pulled the Formants knob up so that the noise's frequencies are shifted upward. Then it was just a matter of playing around with the settings on the device while listening at 100% wet. The XY pad below the selector is great for changing the density and texture of the white noise, but I found only a minor tweak to this was needed in the case of these hats as I'm after the traditional white noise sound to blend with my hats. I started by adding Live's Vocoder and making sure the Carrier (the timbre-controlling signal) is set to "noise".
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