electronics project

[Thierry Rochebois]

Hello,

As an electronics teacher, I will direct a completion project for
engineering students (9th to 13th of June).

The project consists in building a modular synthesizer. Every student will
have to design and build a module. There will be 16 students...

I predesigned some modules :

- Triangle VCO (based on 4053, LM311 and TL084) : low cost and good linearity
- VCF (two pole, SEM like based on LM13700 and a TL084)
- Dual VCA (LM13700 and TL084)
- Dual ADSR (4052, 4001 and two LM324)
- Noise Generator
- LFO
- LFVCO

I designed a 4086 thermo controlled based exp generator that will be used
with the VCO and VCF.

I plan to add a left hand controller that will consist in a Force Sensing
Resistor (FSR) and 3 push buttons. The 3 push-buttons will binary encode
8 presets of 3 (or more) voltages, the FSR will control the transient speed.
This device will be used to control a set of 3 bandpass VCF to synthesize
vocal sounds for example (CSound simulation prooved that it can work).

Last but not least, I ordered a MIDI2CV8 kit to Chris Crosskey that will arrive
soon. This kit will allow us to control the beast.

I thank Chris for bringing PAiA technology to Europe.

Kind regards,

Thierry Rochebois