Title

Quad Control-Voltage/Pulse Delay Generator Buchla 200 Synthesizer Module

Lead Author Major

Electrical and Computer Engineering

Format

SOECS Senior Project Demonstration

Faculty Mentor Name

Ken Hughes

Faculty Mentor Department

Electrical and Computer Engineering

Abstract/Artist Statement

The Buchla 200 series synthesizer is a modular, analog-based musical instrument. To expand the functionality of the system and introduce a new type of method for user interaction, we have designed a module that utilizes a touchscreen-based computer to send control signals to other modules. This module has two specific functions. Pulse Delay Function: This module will output several delayed voltage pulses for triggering other modules. One external voltage input pulse (or an input pulse generated by the module itself) will be used to initiate several delayed output pulses. The output pulses are cascaded, as each pulse will only occur if the previous pulse has outputted. The delay duration can be modified by the use of control voltage inputs, direct user input, or both. CV Generator Function: This part of the module will create control voltages that can be used to effect change at other modules. This will feature a touchscreen display where the wave shape of each control voltage can be defined by the user through input on the display and modified as needed. The display will show the control voltage values over time. This time axis can be modified by the use of input control voltages, direct user input, or both. Each control voltage output can be started or stopped by the user if desired. In addition, the user can loop the output control voltage or play it once. The Pulse Delay Function can be used, if desired, to start the CV Generator Function.

Location

School of Engineering & Computer Science

Start Date

7-5-2020 2:30 PM

End Date

7-5-2020 4:00 PM

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May 7th, 2:30 PM May 7th, 4:00 PM

Quad Control-Voltage/Pulse Delay Generator Buchla 200 Synthesizer Module

School of Engineering & Computer Science

The Buchla 200 series synthesizer is a modular, analog-based musical instrument. To expand the functionality of the system and introduce a new type of method for user interaction, we have designed a module that utilizes a touchscreen-based computer to send control signals to other modules. This module has two specific functions. Pulse Delay Function: This module will output several delayed voltage pulses for triggering other modules. One external voltage input pulse (or an input pulse generated by the module itself) will be used to initiate several delayed output pulses. The output pulses are cascaded, as each pulse will only occur if the previous pulse has outputted. The delay duration can be modified by the use of control voltage inputs, direct user input, or both. CV Generator Function: This part of the module will create control voltages that can be used to effect change at other modules. This will feature a touchscreen display where the wave shape of each control voltage can be defined by the user through input on the display and modified as needed. The display will show the control voltage values over time. This time axis can be modified by the use of input control voltages, direct user input, or both. Each control voltage output can be started or stopped by the user if desired. In addition, the user can loop the output control voltage or play it once. The Pulse Delay Function can be used, if desired, to start the CV Generator Function.