One of the example projects that I wanted to do with the Noise Nugget was to use it as an audio effect.
This is what I demonstrate in this video:
The music in produced by the PO-20 (left), then goes through the Noise Nugget (center) and finally comes out of the small speaker (right). The flanging effect is enabled and disabled by pressing on the button of the Noise Nugget. The LED is lit when the effect is enabled.
Flanger/Flanging is a simple effect achieved by mixing a incoming signal with its echo, and slowly changing the period of the echo.