The RockDrum-1 chip contains 6 fully polyphonic digital playback drum samples in an 28-pin DIP package. Part of the ZMX-6 family of complimentary sample playback devices, these wonderfully crunchy “Lo-Fi” PCM drumkit samples can be used as voice chips for a drum machine or a drum module.
RockDrum-1 samples include: Bass, Snare, Closed High Hat, Tom, Short Ride Cymbal, and (of course) Cowbell.
The RockDrum-1 has separate trigger inputs and audio outputs for each of its 6 voices and is fully polyphonic. In addition, 6 separate tune inputs can modulate playback rates, including reverse playback, with an analog control voltage.
The outputs are ~60KHz 10-bit Sigma-Delta PDM and the chip runs standalone from a 2.7-5 volt power source.