Category Archives: drum machine

Giving The Amstrad CPC A Voice And A Drum Kit

Back in the ’80s, home computers weren’t capable of much in terms of audio or multimedia as a whole. Arguably, it wasn’t until the advent of 16-bit computers such as the Amiga that musicians could make soundtrack-quality music without having to plug actual studio gear up to their machines. [Michael …read more

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Posted in amstrad cpc, chiptune, DECtalk, drum machine, midi controller, MIDI instrument, retro, retrocomputing, sampler, speech synthesis | Leave a comment

A Baby Named DJ

Some of us are guilty of picking up questionable hardware from garage sales, fleamarkets, and well-meaning relatives. There is a balance between turning down a good investment and hoarding, and if we figure out how to tell the difference you will be the first to know. [Clem Mayer] may start …read more

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Posted in 555, 555 audio, 555 timer, analog audio, analog circuitry, circuit bending, drum machine, how-to, music, musical hacks, synthesizer | Leave a comment

Elegant Drum Machine from Teensy

Playing the drums is pretty hard, especially for the uncoordinated. Doing four things at the same time, all while keeping an even tempo, isn’t reasonable for most of us. Rather than hiring a drummer for your band who is well versed in this art, though, you might opt instead to outsource this job to a machine instead. It’s cheaper and also less likely to result in spontaneous combustion.

This drum machine is actually a MIDI Euclidean sequencer. Euclidean rhythms are interesting in their own regard, but the basics are that a common denominator between two beats is found in order …read more

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You Can’t Build A Roland TR-808 Because You Don’t Have Faulty Transistors

That headline sounds suspect, but it is the most succinct way to explain why the Roland TR-808 drum machine has a very distinct, and difficult to replicate noise circuit. The drum machine was borne of a hack. As the Secret Life of Synthesizers explains, it was a rejected part picked up and characterized by Roland which delivers this unique auditory thumbprint.

Pictured above is the 2SC828-R, and you can still get this part. But it won’t function the same as the parts found in the original 808. The little dab of paint on the top of the transistor indicates that …read more

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Posted in drum machine, Ikutar Kakehashi, musical hacks, noise, noise circuit, roland, Roland TR-808, TR-808, transistor | Leave a comment