image: https://user-images.githubusercontent.com/10212990/87932250-19c3a480-ca83-11ea-9b29-cb3052e256a8.jpg
A teensy microcontroller hihat module for eurorack. A no frills teensy 3.2 HiHat eurorack module. Using Teensy audio DSP *
- Based on 808 model of
- six square waves with three filters and an envelope.
- white noise added to fill
- three filters for hat frequency narrowing, plus one for colour
- use only one envelope for both open and closed, so choking is automatic
- two trigger inputs, open and closed.
- closed chokes open
- three poteniometers
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- length of closed
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- length of open
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- resonance or filter effect
- onboard DAC gives a single mixed audio output on pin14
- two trigger indicators leds
- six square waves to make an 808 hihat: http://joesul.li/van/synthesizing-hi-hats/
Fundamental freq =40
Osc1 ratio:2
Osc2 ratio:3
Osc3 ratio:4.16
Osc4 ratio:5.43
Osc5 ratio:6.79
Osc6 ratio:8.21
other influences: https://www.muffwiggler.com/forum/viewtopic.php?t=120280