audio-context

Creates a WebAudio context singleton with the given options. Returns null if not supported.

Example

var audioCtx = require('audio-context')()

You can also create an OfflineAudioContext in case you would like to process (faster) without any rendering.

var offlineContext = require('audio-context')({offline: true})

Usage

ctx = createContext(options|sampleRate)

Returns a singleton audio context for the given sampleRate.

The options:

• sampleRate - if specified, will set the context sampleRate.
• latencyHint - if specified, will control latency. One of 'balanced', 'playback', 'interaction' (default) or number.
• offline - if specified, will create OfflineAudioContext.
• length - if specified, will set number of frames for offline context.
• channels - if specified, will set number of channels for offline context.
• {...contextAttributes} any other options for the context.

Handles vendor prefixing for audio contexts. Returns null if we are not in a browser, or if the context is not available, or if there was an error creating the context.

Running tests

# Run tests in tape-run's default browser
npm test

# Run in a specified browser.
# See https://github.com/juliangruber/tape-run#runopts for options
npm test -- --browser firefox

License

MIT

0.1.0 / 2014-07-29

• ignore node_modules
• Merge pull request #4 from oncletom/bump-version
• v0.1.0
• Merge pull request #3 from oncletom/feature-offline-context
• new cannot be used for an OfflineAudioContext as specific arguments are required.
• offlineAudioContext
• Testing audio-context/offline export.
• window object is now an explicit dependency.
• Enabled npm test
• Merge pull request #1 from EvanHahn/patch-1
• Prioritize unprefixed AudioContext
• use testling