QCVG
The QCVG (Quad Control Voltage Generator) is a hardware and software package designed and developed for computerized control of an analogue modular synthesizer.
![side view of QCVG module](https://s3.amazonaws.com/privatechronology/assets/QCVG_2.jpg)
The QCVG is comprised of an Arduino Nano microcontroller interfaced to a pair of dual 12-bit DAC chips (MCP4822), which provide four channels of 0-4V CV (control voltage) for controlling oscillator pitch, and four trigger outputs (for triggering envelope generators in the synthesizer).
![front view of QCVG module](https://s3.amazonaws.com/privatechronology/assets/QCVG_1.jpg)
The software is written in C++, and an example of music recorded with the QCVG can be heard on SoundCloud.