The Sentient Machine is an LFO modulated resonant lowpass filter with two different voices: A standard wah sound and a special vowel type sound. At slow speeds it produces a spacey sweeping sound reminiscent of a phaser.
The vowel voice mode is achieved by modulating an additional filter that is tuned higher and sweeps in the opposite direction. It's a combination of filters sometimes referred to as a formant filter. This circuit uses PWM and CMOS switches as variable resistors insted of vactrols or jfet's, which gives a perfectly matched set of variable resistors and more accurate modulation at low resistances.
This kit is a creation by Parasitstudio.se in cooperation with Musikding.de. If you have any problem with the content of the kits like mising or wrong parts, please contact Musikding (Klaus) at firstname.lastname@example.org. For any technical problem relating to building this project, please contact Fredrik at www.parasitstudio.se.
Here´s the parts list: Parts List (BOM)
This kit contains all parts you need to build a fully functional effect pedal. Not included in the kit, but also good to have:
- Aluminium enclosure: select one from top
- 9V DC power supply
- 2 nice knobs for the potentiometer, up to 25mm diameter and for 6.3mm shafts
- Decal, transfer or transparent sheets for labeling
Sentient Machine docs.