The Tiptop Audio CP909 Clap Generator is a Eurorack mod based on the hand clap sound of Rolands TR-909. Although authentic the CP909 has an added Trash knob to distort the original sound signal. Like most of its TipTop Audio brethren the CP909 can be pushed to extremes by dialling up the Trash & Accent controls to their maximum settings. The triple-saw envelope generator controls a VCA gain to realise the clapping sound.