https://github.com/gibber-cc/gibberish

Fast, JavaScript DSP library that creates JIT optimized audio callbacks using code generation techniques
https://github.com/gibber-cc/gibberish

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Fast, JavaScript DSP library that creates JIT optimized audio callbacks using code generation techniques

• Host: GitHub
• URL: https://github.com/gibber-cc/gibberish
• Owner: gibber-cc
• Created: 2012-06-17T02:37:10.000Z (over 12 years ago)
• Default Branch: v3
• Last Pushed: 2023-06-21T00:14:06.000Z (over 1 year ago)
• Last Synced: 2024-10-02T10:38:45.709Z (2 months ago)
• Language: JavaScript
• Size: 14.4 MB
• Stars: 387
• Watchers: 25
• Forks: 36
• Open Issues: 22
• Metadata Files:
  • Readme: README.markdown

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• awesome-webaudio - Gibberish - A JavaScript DSP library that creates JIT optimized audio callbacks using code generation techniques. (Obsolete / Community)

README

        
# Gibberish

[Gibberish][gibberish] is designed to be a fast audio API for the browser. It takes the low-level building blocks provided by [genish.js](https://charlie-roberts.com/genish) and uses them to create higher-level synthesizers, effects, and sequencers. Gibberish proceses each sample of each synthesis block one sample at a time, enabling a variety of effects not typically possible in JavaScript synthesis systems, most importantly single-sample feedback loops and audio-rate modulation of scheduling. 

Note that this branch is for version 3 of the library. See [the master branch](https://github.com/gibber-cc/gibberish/tree/master) for the pre-June 2017 version that is currently used in Gibber. There is also a tagged release of the older version (2.0.0).

## Live Code Playground

https://www.charlie-roberts.com/gibberish/playground

## Example Code

```javascript

kik = Kick().connect() // connects to master output by default

// sequence calls to 'trigger' method of kick drum every 1/2 second

// with alternating loudness levels.

seq  = Sequencer.make( [.25,.5], [22050], kik, 'trigger' ] ).start()

chr = Chorus().connect()

syn = PolySynth({ maxVoices:4, attack:44, decay:22050, gain:.1 })

// connect to chorus and master output

syn.connect( chr ).connect()

syn.chord( [220,330,440,550] )

```

## HTML + Initialization

```html

  

    

  

  

  

  

  window.onload = function() {

    Gibberish.workletPath = 'dist/gibberish_worklet.js'

    Gibberish.init().then( ()=> {

      Gibberish.export( window )

      

      Sine().connect() 

    })

  }

  

```

## Development dependencies

* node 6 or better

* npm

* gulp

## Building

You need to have node.js and gulp installed. Then:

1. Run `npm install` in the top level directory

2. Run `gulp` in the top level directory

3. Run `gulp minify` if you'd like to create minified and gzipped versions of the library.

The library will then be found in the `dist` folder.

## Ugens

Gibberish includes a long list of oscillators, fx, and synthesis algorithms.

### Oscillators

* Sine

* Triangle

* Saw (wavetable & anti-aliased)

* PWM (algorithmic & anti-aliased)

* Square (wavetable & anti-aliased)

* Noise( white, pink, brown )

* Sampler - read audiofiles and playback at various speeds

### Synthetic Percussion (TR-808 emulation)

* Kick

* Snare

* Clave

* Tom

* Cowbell

* Hat

* Conga

### Synths

All synths also have polyphonic versions.

* Synth - oscillator + optional filter + envelope

* Monosynth - three oscillators + optional filter + envelope

* FM - two op FM synthesis + optional filter + envelope

* Karplus-Strong - Physical model of a plucked string

* Complex - oscillator + wavefolder + filter + envelope

### Effects

* BitCrusher - bit depth and sample rate reduction

* Buffer Shuffler

* Chorus (arp solina model)

* Delay

* Distortion

* Flanger

* Ring Modulation

* Reverb (freeverb and dattorro plate reverb models)

* Vibrato

### Filters

* State Variable Filter (12 db resonant)

* Biquad Filter (12 db resonant)

* Ladder Filter ("Moog-style" 24db resonant)

* "Virtual Analog" (aka implicit) Ladder Filter ("Moog-style" 24db resonant)

* "Virtual Analog" (aka implicit) ZDF filter (a la TB-303)

### Analysis

* Envelope Follower

### Sequencing

* Seq  - sample-accurate scheduling

* Seq2 - provides audio-rate modulation of timing

## License

Gibberish is licensed under the MIT license.

[gibberish]:https://www.charlie-roberts.com/gibberish/