Guenther Chiptune Demo
10 May 2017 Update: Schematics and Firmware available at: https://github.com/GumpherDM3/Guenther-Chiptune
------------------------------------------------------------
This is a DIY MIDI capable Arduino controlled monophonic semi-modular analog synthesizer. It has 4 VCOs (2 Audio, one Sub-audio and one hybrid that switches between either), a 4-pole low pass filter, a Voltage Controlled Amplifier (VCA) and two envelope generators (AR1 and AR2). It also has an arpeggiator built in to add some videogame-esque sounds. My awesome wife printed out the decals using the Silhouette Cameo and transferred them onto the wooden control panel with a layer of Modpodge to make it scratch resistant. I never really sat down to figure out how many octaves it can work with before the tuning goes bonkers, but it appears to handle six octaves pretty well.
I hope you enjoy the video. I had a really great time learning about this stuff and actually getting to build a working synth.
Tech Stuff: The VCOs, LPF and VCA cores are all built around the LM13700 OTA using mostly datasheet schematics with component values adjusted to work on +-9V supply. Also, since the synth uses the LM13700 for all VCOs and VCF, all exponential current sources use PNP transistors. I added in my own design for input CV signal mixing to the modules and output signal normalizers (to produce both CV and audio signals). I attempted to design my own CV generator using the Arduino and while it works more-or-less, I learned first hand about the challenges with using the PWM analog signals produced by the micro-controller as CV signals for the synth modules. I don't think I would do anything differently in this project, but next time I'll use a 16-bit DAC for analog CV signal generation rather than the Arduino.
Видео Guenther Chiptune Demo канала GumpherDM3
------------------------------------------------------------
This is a DIY MIDI capable Arduino controlled monophonic semi-modular analog synthesizer. It has 4 VCOs (2 Audio, one Sub-audio and one hybrid that switches between either), a 4-pole low pass filter, a Voltage Controlled Amplifier (VCA) and two envelope generators (AR1 and AR2). It also has an arpeggiator built in to add some videogame-esque sounds. My awesome wife printed out the decals using the Silhouette Cameo and transferred them onto the wooden control panel with a layer of Modpodge to make it scratch resistant. I never really sat down to figure out how many octaves it can work with before the tuning goes bonkers, but it appears to handle six octaves pretty well.
I hope you enjoy the video. I had a really great time learning about this stuff and actually getting to build a working synth.
Tech Stuff: The VCOs, LPF and VCA cores are all built around the LM13700 OTA using mostly datasheet schematics with component values adjusted to work on +-9V supply. Also, since the synth uses the LM13700 for all VCOs and VCF, all exponential current sources use PNP transistors. I added in my own design for input CV signal mixing to the modules and output signal normalizers (to produce both CV and audio signals). I attempted to design my own CV generator using the Arduino and while it works more-or-less, I learned first hand about the challenges with using the PWM analog signals produced by the micro-controller as CV signals for the synth modules. I don't think I would do anything differently in this project, but next time I'll use a 16-bit DAC for analog CV signal generation rather than the Arduino.
Видео Guenther Chiptune Demo канала GumpherDM3
Показать
Комментарии отсутствуют
Информация о видео
Другие видео канала
![Build An Analog Synth Filter Made EASYYYY.](https://i.ytimg.com/vi/q-2MkTAr4xk/default.jpg)
![Beatstep Pro - First Trip & Discovering Uses (Eurorack improvisation)](https://i.ytimg.com/vi/uuP3YiciJm0/default.jpg)
![Moog Matriarch Analog Paraphonic Four Oscillator Dual Filter Synthesizer](https://i.ytimg.com/vi/4fPGmzIeEx8/default.jpg)
![The Synth Sounds of Atoms For Peace / Thom Yorke - Tutorial with Joe Edelmann](https://i.ytimg.com/vi/v32rURpVzq0/default.jpg)
![Moog One - A Meditation On Listening](https://i.ytimg.com/vi/wdhzVFZlKsM/default.jpg)
![LIVE from the Lab: AUDUINO Synth build for the Arduino NANO](https://i.ytimg.com/vi/xb0ZMlqXh-0/default.jpg)
![IT JUST SOUNDS SO GOOD](https://i.ytimg.com/vi/HAK3cXodp5I/default.jpg)
![Theremin (An instrument you play by not touching it)](https://i.ytimg.com/vi/LYSGTkNtazo/default.jpg)
![Korg Minilogue XD Polyphonic Analogue Synthesizer | Reverb Demo Video](https://i.ytimg.com/vi/PuJIjMjvgvg/default.jpg)
![How Does the LameBoy Work? | DIY Retro Synthesizer](https://i.ytimg.com/vi/blhpA24rj5U/default.jpg)
![Befaco DIY Synthesizer Jam With an Arturia Beatstep Pro](https://i.ytimg.com/vi/Izaf3cygUAY/default.jpg)
![1970's DIY ANALOG SYNTH MAGAZINE KIT - The POWERTRAN Transcendent 2000](https://i.ytimg.com/vi/ULDzKDggTlk/default.jpg)
![Hurdy Gurdy (The medieval wheel instrument)](https://i.ytimg.com/vi/gYJg9cLk1us/default.jpg)
![Moog One - The Biggest, Baddest Synth on the Market?](https://i.ytimg.com/vi/L6rC1GExZec/default.jpg)
![How I Built My First Gameboy Synthesizer [with LSDJ]](https://i.ytimg.com/vi/i3lXi8uRD4A/default.jpg)
![Moog Grandmother Melodic Demo](https://i.ytimg.com/vi/-13wvGTmanY/default.jpg)
![5. Rungler](https://i.ytimg.com/vi/n_PgJ7BmGR8/default.jpg)
![Super-powered mini synth - Erica Synths Pico System II](https://i.ytimg.com/vi/_hvQBqB318I/default.jpg)
![Get more out of your Beatstep Pro with these modular patch tips!](https://i.ytimg.com/vi/vwAAbIu4aKU/default.jpg)
![Synth Voltage Controlled Oscillator 1v/oct tracked DIY how to.](https://i.ytimg.com/vi/4Kz8YopLTCQ/default.jpg)