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Audio Data API - Mozilla
https://wiki.mozilla.org/Audio_Data_API
Note: this API has been deprecated in favor of the Web Audio APIchosen by the W3C. The HTML5 specification introduces the <audio> and <video> media elements, and with them the opportunity to dramatically change the way we integrate media on the web. The current HTML5 media API provides ways to play and get limited informati…
Using the Web Audio API - Web APIs | MDN - Mozilla
https://developer.mozilla.org/en-US/docs/Web/API/Web_Audio_API/Using_Web_Audio_API
Everything within the Web Audio API is based around the concept of an audio graph, which is made up of nodes. The Web Audio API handles audio operations inside an audio context, and has been designed to allow modular routing.Basic …
Web Audio API - Web APIs | MDN - Mozilla
https://developer.mozilla.org/en-US/docs/Web/API/Web_Audio_API
Create audio context. Inside the context, create sources — such as <audio>, oscillator, stream. Create effects nodes, such as reverb, biquad filter, panner, compressor. Choose final destination of audio, for example your system speakers. Connect the sources up to the effects, and the effects to the destination.
Visualizations with Web Audio API - Web APIs | MDN - …
https://developer.mozilla.org/en-US/docs/Web/API/Web_Audio_API/Visualizations_with_Web_Audio_API
To extract data from your audio source, you need an AnalyserNode, which is created using the BaseAudioContext.createAnalyser method, for example: var audioCtx = new ( window. AudioContext || window. webkitAudioContext)(); var analyser = audioCtx.createAnalyser(); Copy …
AudioData - Web APIs | MDN
https://developer.mozilla.org/en-US/docs/Web/API/AudioData
Returns the sample format of the audio. AudioData.sampleRate Read only . Returns the sample rate of the audio in Hz. AudioData.numberofFrames Read only . Returns the number of frames. AudioData.numberofChannels Read only . Returns the number of audio channels. AudioData.duration Read only . Returns the duration of the audio in microseconds.
Example and tutorial: Simple synth keyboard - Mozilla
https://developer.mozilla.org/en-US/docs/Web/API/Web_Audio_API/Simple_synth
let keyboard = document.querySelector(".keyboard"); let wavePicker = document.querySelector("select [name='waveform']"); let volumeControl = document.querySelector("input [name='volume']"); Copy to Clipboard. References to elements we'll need access to are obtained:
Audio - Mozilla
https://wiki.mozilla.org/Audio
More info on HTML5 Audio and Firefox Audio APIs. HTML5 audio element; Media formats supported by the audio and video elements (AKA whither MP3 support?) Audio Data API ; Introducing The Audio API Extension; Standardization: W3C Audio Working Group (Established 2011 March, participants, wiki, @w3caudio) See also. More events
AudioData.copyTo() - Web APIs | MDN - …
https://developer.mozilla.org/en-US/docs/Web/API/AudioData/copyTo
An integer giving an offset into the plane data indicating which plane to begin copying from. Defaults to 0. frameCount Optional. An integer giving the number of frames to copy. If omitted then all frames in the plane will be copied, beginning with the frame specified in frameOffset.
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