npm install openmusic-theremin> A theremin audio node
``bash`
git clone https://github.com/openmusic/theremin.git
Then install build dependencies, etc with:
`bash`
npm install
To build a bundle for the demo:
`bash`
npm run build
Demo files will be placed in build/. Open build/index.html to access the demo.
Remember to rebuild the bundle each time you make a change to the demo or node code. Alternatively you can also run the watch task, so it will watch for file changes and then rebuild the bundle for you:
`bash`
npm run watch
Create an instance of the node by passing it an audio context:
`javascript`
var Theremin = require('openmusic-theremin');
var audioContext = new AudioContext();
var thereminNode = Theremin(audioContext);
This node can be connected together like any other Web Audio node:
`javascript`
var gainNode = audioContext.createGain();
thereminNode.connect(gainNode);
`javascript``
theremin.frequency.value = 123;
theremin.frequency.setValueAtTime(440, 0);