midibus

🌐 Example available on http://pqml.github.io/midibus.js/ 🌐

Installation & Usage

Installation from npm

# using npm
$ npm install --save midibus
# or using yarn
$ yarn add midibus

Usage with a module bundler

// using ES6 modules
import * as midi from 'midibus'
// using CommonJS modules
var midi = require('midibus')

Usage from a browser

<script src="https://unpkg.com/midibus"></script>
<script>
 // You can find the library in window.midibus
 midibus.access(function() {})
</script>

Example

const midi = require('midibus')
// Assure that the browser have gained access to the MIDI interface
midi.access((err) => {
 // Catch Error
 if (err) throw err
 // Show available inputs & outputs
 console.log('Available inputs', midi.inputs)
 console.log('Available outputs', midi.outputs)
 // Create a new midi bus with available input & output
 const magicBus = midi.bus(midi.inputs[0], midi.outputs[0])
 // You can also omit the input or the output parameter
 const myKeyBoard = midi.bus(midi.inputs[1], null)
 // When a kb note is received, pipe it to magicBus, with a constant velocity
 myKeyBoard.on('noteOn', ({channel, pitch}) => {
 magicBus.send('noteOn', midi.msg(channel, pitch, 80))
 })
})

License