MATRIXSYNTH: oneUP! Atari TIA Custom Chiptune Midi Synt

Friday, March 11, 2016

oneUP! Atari TIA Custom Chiptune Midi Synt

Published on Jan 4, 2016 manosmodularsystems

"This video is just an audio demo of oneUP!, which is an Atari TIA midi synth. This is a single track, from a single oneUP!, recorded in a single take, with just a bit of reverb. OneUP! is a midi-controlled Atari TIA IC (CO10444D, this time). This demo is very limited; the device is capable of much more. The device is based off of Brian Peter's chip synth under the MIT license."

Update via Chocolatchips in the comments: "These are still available at , in the Etsy shop. The boards are redesigned and they're in a new enclosure style. Other midi boxes are available there, too."

via this auction

Cool retro style case.

Note this is not an Atari Punk Console (APC).

"This is a midi-controlled TIA audio IC from an Atari 2600 and various classic arcades of the late 70’s and early 80’s. It's housed in a road-worthy extruded aluminum enclosure; you could probably jump up and down on this device and it would continue working just fine (but please don't do that). This is the sixth unit made in a short run. Unit #5 sold on Etsy for $125. The TIA IC installed in this unit is new-old stock, meaning that it wasn’t pulled from a used game system; it was warehoused and the first time it made sound was when I tested it here. The video linked on this page contains a short audio demo. This instrument can do allot more, but the demo should whet your appetite. The oneUP! midi synth connects to your usb-capable midi controller or DAW by a common mini USB to USB A cable. The audio out is by eighth inch jack.

When connected to my Windows PC, my DAW recognizes oneUP! immediately. The device is small enough to fit in the palm of your hand or your pocket. This is only the sixth one built and so the work was very much ‘by hand’. This unit features a newer PCB revision and tighter design than the first. The build is solid and durable. The audio output is nice, loud and clear.

The design is based off of Brian Peter’s TIA chip synth under the MIT license. Besides the provided demo, it’s capable of everything in Brian’s demo, too. This unit includes a CO10444D “Atari TIA” audio IC. This unit features a socketed Atari TIA IC, that can be removed and replaced if needed. After the first twenty units, I will most likely be out of TIAs."


  1. These are still available at , in the Etsy shop. The boards are redesigned and they're in a new enclosure style. Other midi boxes are available there, too.


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