VR Ondes Martenot

Inspired by the ondes martenot this is a WebXR based application that attempts to recreate the experience of playing one.

Here's a video

And here's a hosted demo (emulated version)

Compatibility

• Tested with Oculus Quest 2

Installation

Clone repository and run

npm install

SSL certificate (for debugging)

VR requires that you use a secure (https) server, meaning you are required to provide a local SSL certificate for debugging. If you haven't done so before, install mkcert:

brew install mkcert

Create a local certificate authority:

mkcert -install

Finally, from the project's root, create the certificate, replacing with your ip at the end

mkdir .cert
mkcert -key-file="./.cert/key.pem" -cert-file="./.cert/cert.pem"  localhost 127.0.0.1 ::1 <your-ip>

Usage

Run webpack dev server

npm run server

It should open a tab to https://<your-ip>:8080

Controls

• Each control can be used as an independent instrument.
• Use the thumbstick button to position the keys wherever you desire. It is recommended to put it on top of a real table, that way it can be used as a pivot point and better vibrato can be achieved.
• Use trigger for volume control. No sound is produced until the trigger is pressed.
• Use the A and X buttons to cycle through the different sounds (Sine, Trapezium, Violin, Square, Triangle, Sawtooth)
• Use the B and Y buttons to turn delay on/off.

Emulation

You can test the app without VR by using an emulated mode:

http://localhost:8080/?mode=emu

This creates two virtual controllers you can move around in the scene to simulate the actual controllers. You can then use these controls:

• Press 1 and 2 to change to move/rotate respectively.
• Press 5 to cycle through the sounds.
• Press 6 to turn delay on/off.
• Press spacebar for positioning the keys under the control.