https://github.com/iBundin/Open-Web-Piano

Virtual piano based on Web Audio API and Web MIDI API
https://github.com/iBundin/Open-Web-Piano

musical-instrument piano webaudio-api webmidi

Last synced: 26 days ago
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Virtual piano based on Web Audio API and Web MIDI API

• Host: GitHub
• URL: https://github.com/iBundin/Open-Web-Piano
• Owner: iBundin
• Created: 2017-02-26T14:18:05.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2017-04-13T23:09:02.000Z (over 7 years ago)
• Last Synced: 2024-08-03T16:09:57.192Z (4 months ago)
• Topics: musical-instrument, piano, webaudio-api, webmidi
• Language: JavaScript
• Homepage: http://ibundin.github.io/Open-Web-Piano
• Size: 767 KB
• Stars: 29
• Watchers: 2
• Forks: 9
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md

Awesome Lists containing this project

• awesome-javascript-audio - iBundin/Open-Web-Piano - nice piano, user-friendly: supports choosing a MIDI device on load (MIDI instruments / Piano)

README

        
Lightweight virtual web piano. There is only one sample per octave, however samples are mixed with each other for realistic sound with correct full-length sustain. Lowpass filters are used to emulate dynamics. This instrument works well with sustain pedal.

## Installation

Simply copy **_openWebPiano.js_** and **_audio_** folder. See index.html for the example.

## API

0. **init(context)** - load all samples and start;

1. **noteOn(note 21 - 105, velocity 0 - 127 )** - start a note with a particular velocity level in standard MIDI format;

2. **noteOff(note)** - stop a note;

3. **sustain(value)** - any value higher then 0 switches sustain on, 0 value switches sustain off.

## Example

```javascript

  var audioCtx = new AudioContext();

  openWebPiano.init(audioCtx);

  //on event(note,velocity) ->

  openWebPiano.noteOn(note, velocity);

```

## License

[MIT](https://github.com/nishanths/license/blob/master/LICENSE)