Definitions
API: Application Programming Interface.
- A set of routines, protocols, and tools for building software applications
HTML: HyperText Markup Language.
- Provides a standard for playing audio files
- Important methods: load(), play(), pause()
- Important attributes: autoplay, controls, loop, muted, preload, src
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< audio>tag specifies a standard way to embed audio in a web page
JavaScript: A dynamic programming language, object-oriented, commonly used to create interactive effects within web browsers.
- embedded in HTML, within
AudioContext: Managing and playing all sounds
- AudioContext connects sound sources to the sound destination
- Only needed once for each audio application created
- Executes the audio processing or decoding
- Contains AudioNodes
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var audioContext = new AudioContext()
SampleRate: Number of samples of audio carried per second (Hz / kHz)
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AudioContext.sampleRatereturns a floating point number representing sample rate used by ALL nodes
- Sample-rate of an AudioContext cannot be changed
- Sample-rate convertors are not supported
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var audioContext = new AudioContext(); var mySampleRate = audioContext.sampleRate;
Audio NodeGraph: connected AudioNodes in a given AudioContext creates an audio routhing graph.
- represents an audio-processing graph built from linked AudioNodes
- houses the chain of AudioNodes
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