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purescript-webaudio

About

This is an experimental library for dealing with the HTML5 Web Audio API.

Module documentation is available here.

To build the examples to run in your browser, perform the following scripts in order:

1. npm run build:example:xx where xx is the example (siren, gain, decode, decodeAsync)

To run the examples in your browser, perform the following scripts in order:

1. npm run exec:example:xx where xx is the example (siren, gain, decode, decodeAsync)

To build the test suite

1. npm run build:test:props

To run the test suite

1. npm run exec:test:props and inspect the output log

Breaking Changes

• Updated to work with purs 0.11.x
• Renamed the WebAudio effect to AUDIO to conform with best practices
• Renamed the AudioNode class as RawAudioNode
• AudioNode is now a sum type over all the raw nodes.
• Renamed wau to audio
• Moved several fns from AudioContext.purs to BaseAudiocontext to match web audio spec
• Created a Connectable class encompassing connect, disconnect & connectParam with AudioNode as an instance. This lives in Types.purs

Improvements

• Moved test/Test0X to examples/ and renamed appropriately
• Added AudioParam.setTargetAtTime
• Updated API.md to reflect decodeAudioData error handling change
• New type synomymns Value and Seconds for AudioParam methods
• Eliminated gulp, putting new build test scripts in package.json
• Added decodeAudioDataAsync to BaseAudioContext. This runs in Aff not Eff but has the advantage that audio buffers can be returned directly. This, of course, introduces a dependency on Aff 4.0.0 and requires users to lift the original Eff functions into Aff if they wish to use it. I hope that this overhead should not be too restrictive given that a natural way to load sound resources is via Aff anyway.
• Added decodeAsync to illustrate basic usage. devDependencies now include Affjax.
• Added test/props to test some simple properties of the new Node types.
• Added BiquadFilterNode.
• Added detune property to Oscillator.
• Added DelayNode.
• Added disconnect to Types.
• Experimented with shorthand setters for AudioParam properties on some nodes.
• Added AnalyserNode plus buffer creation functions in Utils. This introduces a dependency on Data.ArrayBuffer.
• Added StereoPannerNode.
• Added DynamicsCompressorNode
• Added ConvolverNode

adkelley ToDo:

• Add further error handling options for decodeAudioData besides writing to console
• Support for further nodes (e.g., ChannelSplitterNode), and interfaces

newlandsvalley ToDo:

• Document the changes from merging my fork