Tabula Rasa Waveform Editor Demo

video upload by O.Z. Hall

"Shout out to Greg Surges for creating this fun program over 10 years ago!

Open Source location for the Tabula Rasa 8-bit Wavetable Digital Oscillator
https://github.com/surgesg/tabulaRasa

Windows program for managing wave banks
https://github.com/surgesg/tabulaRasa...

FYI, panels, pcbs and full kits may be available from SynthCube.com ( I'm not compensated for this link ):
https://synthcube.com/cart/tabula-ras..."

Pucktronix tabulaRasa Demo (Voice Waveforms)

YouTube Published on Jul 14, 2012 by surgesg

"Demo of tabulaRasa using vocal waveforms.

The tabulaRasa is a digital wavetable oscillator with voltage control of frequency, waveform selection, and the amount of interpolation between waveforms. The tabulaRasa consists of two components: a hardware synthesis module which can integrate into a modular synth system, and a software application which allows the user to create their own custom waveforms. These waveforms are then transferred from the computer to the tabulaRasa module through a standard SD card slot.
As of 07.11.2012, the tabulaRasa is open source and hosted at http://www.bitbucket.org/pucktronix/tabularasa/"

Update:

tabulaRasa Demo (FM Waveforms)

Published on Jul 14, 2012 by surgesg

"Demo of tabulaRasa using FM-derived waveforms.

The tabulaRasa is a digital wavetable oscillator with voltage control of frequency, waveform selection, and the amount of interpolation between waveforms. The tabulaRasa consists of two components: a hardware synthesis module which can integrate into a modular synth system, and a software application which allows the user to create their own custom waveforms. These waveforms are then transferred from the computer to the tabulaRasa module through a standard SD card slot.
As of 07.11.2012, the tabulaRasa is open source and hosted at http://www.bitbucket.org/pucktronix/tabularasa/"

USB-Octomod Demonstration

YouTube via surgesg | October 29, 2010
follow-up to this post.
"http://www.gregsurges.com/circuitry/u...
The USB-Octomod is a USB device which allows generation of computer-controlled analog synthesizer control voltages in the range of approximately +/- 5V. Using a small open-source and cross-platform host application, the user is able to control the 8 output channels of the Octomod through a simple OSC interface. The OSC interface allows composers, musicians, etc. to control the Octomod from their software environment of choice. PCBs, DIY Kits, and Fully Assembled Boards available at http://www.gregsurges.com/"

pucktronix.pwm_dac demo

YouTube Uploaded by surgesg on Dec 7, 2011

"pucktronix.pwm_dac is a program which (combined with a capacitor and diode) allows a user to generate low-frequency or DC voltages from an AC coupled audio interface. It speaks OSC and has some simple LFO and quantization effects.

A demo reel of a project created for Tom Erbe's Music 267 course at UCSD, Fall 2011."

tabulaRasa: Arduino Shield Wavetable Oscillator - Cycling Waveforms

YouTube via surgesg | October 26, 2010

"The tabulaRasa is a Wavetable Oscillator on an Arduino Shield. Users can design and load their own waveforms.
Here, the oscillator cycles through 11 custom waveforms.

tabulaRasa is currently in development...

http://www.gregsurges.com/"

Arduino Wavetable Oscillator Demo

"Using an Arduino, voltage-to-frequency converter, and digital-to-analog converter to make a wavetable oscillator. The sinewave output is stored in a memory array on the Arduino, and read out at varying frequencies - which are determined by a voltage input. See more at http://www.gregsurges.com/"

tabulaRasa Volt Per Octave Demo

YouTube via surgesg | Feb 25, 2011 |

"https://www.kickstarter.com/projects/...

A demo showing the tabulaRasa Wavetable Oscillator (on a scope) playing various tonal pitch sequences."

Arduino Wavetable Oscillator Demo

YouTube via surgesg | October 19, 2010

"Using an Arduino, voltage-to-frequency converter, and digital-to-analog converter to make a wavetable oscillator. The sinewave output is stored in a memory array on the Arduino, and read out at varying frequencies - which are determined by a voltage input. See more at http://www.gregsurges.com/"

Sitar String Model

YouTube Uploaded by surgesg on Mar 9, 2012

"As a second challenge in the seminar on how objects vibrate, taught by Miller Puckette at UCSD, we were asked to simulate the non-linear way a sitar string interacts with the sitar bridge. In a typical string, like on a guitar, the string maintains a fixed length regardless of whether it is moving upward or downward. Since a sitar bridge is a wide, flat object, with tapered edges, the string comes into contact with different amounts of the bridge depending on its direction of travel.

This is a physical model developed in Max to simulate the sitar string."