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Web Audio API - Web APIs | MDN - Mozilla
https://developer.mozilla.org/en-US/docs/Web/API/Web_Audio_API
It is an AudioNode that use a curve to apply a waveshaping distortion to the signal. Beside obvious distortion effects, it is often used to add a warm feeling to the signal. PeriodicWave Describes a periodic waveform that can be used to shape …
Migrating from webkitAudioContext - Web APIs | MDN
https://developer.mozilla.org/en-US/docs/Web/API/Web_Audio_API/Migrating_from_webkitAudioContext
The Web Audio standard was first implemented in WebKit, and the implementation was built in parallel with the work on the specification of the API. As the specification evolved and changes were made to the spec, some of the old implementation pieces were not removed from the WebKit (and Blink) implementations due to backwards compatibility reasons.
Playing Sounds with the Web Audio API - Apple Developer
https://developer.apple.com/library/archive/documentation/AudioVideo/Conceptual/Using_HTML5_Audio_Video/PlayingandSynthesizingSounds/PlayingandSynthesizingSounds.html
Note: In Safari, the audio context has a prefix of webkit for backward-compatibility reasons. Since the Web Audio API is a work in progress, specification details may change. ... Create an oscillator with the createOscillator() constructor, and assign a waveform to its type property. Acceptable values for the type property are listed in Table 3 ...
Getting Started with Web Audio API - HTML5 Rocks
https://www.html5rocks.com/en/tutorials/webaudio/intro/
The Web Audio API uses an AudioBuffer for short- to medium-length sounds. The basic approach is to use XMLHttpRequest for fetching sound files. The API supports loading audio file data in multiple formats, such as WAV, MP3, AAC, OGG and others. Browser support for different audio formats varies.
203435 - WebKit
https://bugs.webkit.org/show_bug.cgi?id=203435
So, my only alternative is falling back to a regular Audio Element (with no waveform animations) for all the iOS 13 visitors. This has been working just fine on any other known versions since iOS 9. Please update this bug as NOT FIXED and provide us with an estimated date for the final fix.
GitHub - bbc/waveform-data.js: Audio Waveform Data ...
https://github.com/bbc/waveform-data.js/
Waveform data is created in two steps: If you pass an ArrayBuffer containing encoded audio, the audio is decoded using the Web Audio API's decodeAudioData method. This must done on the browser's UI thread, so will be a blocking operation. The decoded audio is processed to produce the waveform data.
Web Audio API performance and debugging notes
https://padenot.github.io/web-audio-perf/
Additionaly, audio is resampled differently, and different audio decoders are used, with different optimizations on different OS and architectures, leading to a wide variety of performance profiles. Authors should take advantage of (nowadays ubiquitous) multi-core machines (even phones often have four or more core these days), and try to ...
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