This is a small patch for using the AKAI EWI-USB on the go with a Teensy 4.0 dev board + Audio Shield (Rev.D) It uses the Teensy's internal Audio Library ( https://github.com/PaulStoffregen/Audio ) to model an analog synth lead patch. It features:
- four oscillators (waveform: variable triangle) in unison or voiced
- 10Hz LFO->pitch controlled by bite sensor pressure
- voltage controlled amplifier and filter reacting to breath control
- two semitones pitchbend on positive pitchwheel input
- a cool fourths voicing (4th down, 9th down, octave down) on negative pitchwheel input
- a custom waveshaping transfer function to add warmth and saturation
- a gentle chorus effect
- stereo output
What is needed:
- Teensy 4.0 dev board ( https://www.pjrc.com/store/teensy40.html )
- Audio Shield for Teensy 4.0 ( https://www.pjrc.com/audio-shield-for-teensy-4-0/ )
- a soldering iron to solder pin headers, sockets and wires to the Teensy and Audio Shield
- USB Type A connector with wires to solder to the Teensy's USB host pads for connecting your EWI ( https://www.pjrc.com/store/cable_usb_host_t36.html )
- USB powerbank with USB micro-B plug for powering the Teensy
- Headphones or active speakers
- optional: a 3D printer for printing a case to acommodate the parts
- Platform specific instructions on how to get your Teensy board up and running can be found here: https://www.pjrc.com/store/teensy40.html
- Download this patch and upload it to your Teensy through the Arduino IDE
- Connect your EWI, Headphones or speakers
- Power up the Teensy with a powerbank or USB charger
- Do not touch any metal parts on the EWI until the green LED lights up (to not mess up the EWI's self-calibration)