Lemus ro-drums-808
ro-drums-808 emulates the Roland TR-808 Rhythm Composer (1980), an analog drum machine with a step sequencer. It runs the original sequencer firmware on an emulated CPU, and runs every voice as a circuit, part by part, from the service notes.
Without the CPU ROM image (d650c-085.ic4, not included) it runs in voice mode: the voices play from MIDI, without the sequencer.
Calibrated to recordings of a real TR-808 at every knob mark; earlier boards by serial number in SERVICE, with the six trimmers and a scope.
Free. Source code under the GNU AGPLv3: github.com/lemus-dev/lemus
Not affiliated with Roland.
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