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HTML5 Audio 1

HTML5 Audio

HTML HTML and HTML5; HTML editor

Dynamic HTML

XHTML

XHTML Basic (Mobile)

XHTML Mobile Profile and C-HTML

HTML element

Span and div

HTML attribute

Character encodings; Unicode

Language code

Document Object Model

Browser Object Model

Style sheets and CSS

Font family and Web colors

HTML scripting and JavaScript

W3C, WHATWG, and validator

Quirks mode

HTML Frames

HTML5 Canvas, WebGL, and WebCL

HTML5 Audio and HTML5 video

Web storage

Web browser (layout) engine

Comparison of document markup languages

web browsers

layout engine support for

HTML; Non-standard HTML

XHTML (1.1)

HTML5; HTML5 canvas,

HTML5 media (Audio, Video)

HTML5 Audio is a subject of the HTML5 specification, investigating audio input, playback, synthesis, as well as

speech to text in the browser.

element

The element represents a sound, or an audio stream.[1]

It is commonly used to play back a single audio file

within a web page, showing a GUI widget with play/pause/volume controls.

Supported browsers

PC

Google Chrome

Internet Explorer 9

Mozilla Firefox 3.5 Opera 10.5

http://en.wikipedia.org/w/index.php?title=Operahttp://en.wikipedia.org/w/index.php?title=Mozilla_Firefoxhttp://en.wikipedia.org/w/index.php?title=Internet_Explorerhttp://en.wikipedia.org/w/index.php?title=Google_Chromehttp://en.wikipedia.org/w/index.php?title=GUI_widgethttp://en.wikipedia.org/w/index.php?title=Speech_to_texthttp://en.wikipedia.org/w/index.php?title=Audio_synthesishttp://en.wikipedia.org/w/index.php?title=HTML5http://en.wikipedia.org/w/index.php?title=Comparison_of_layout_engines_%28HTML5_media%29http://en.wikipedia.org/w/index.php?title=Comparison_of_layout_engines_%28HTML5_canvas%29http://en.wikipedia.org/w/index.php?title=Comparison_of_layout_engines_%28HTML5%29http://en.wikipedia.org/w/index.php?title=Comparison_of_layout_engines_%28XHTML_1.1%29http://en.wikipedia.org/w/index.php?title=Comparison_of_layout_engines_%28XHTML%29http://en.wikipedia.org/w/index.php?title=Comparison_of_layout_engines_%28non-standard_HTML%29http://en.wikipedia.org/w/index.php?title=Comparison_of_layout_engines_%28HTML%29http://en.wikipedia.org/w/index.php?title=Comparison_of_web_browser_engineshttp://en.wikipedia.org/w/index.php?title=Comparison_of_web_browsershttp://en.wikipedia.org/w/index.php?title=Comparison_of_document_markup_languageshttp://en.wikipedia.org/w/index.php?title=Web_browser_enginehttp://en.wikipedia.org/w/index.php?title=Web_storagehttp://en.wikipedia.org/w/index.php?title=HTML5_videohttp://en.wikipedia.org/w/index.php?title=WebCLhttp://en.wikipedia.org/w/index.php?title=WebGLhttp://en.wikipedia.org/w/index.php?title=Canvas_elementhttp://en.wikipedia.org/w/index.php?title=Framing_%28World_Wide_Web%29http://en.wikipedia.org/w/index.php?title=Quirks_modehttp://en.wikipedia.org/w/index.php?title=W3C_Markup_Validation_Servicehttp://en.wikipedia.org/w/index.php?title=WHATWGhttp://en.wikipedia.org/w/index.php?title=World_Wide_Web_Consortiumhttp://en.wikipedia.org/w/index.php?title=JavaScripthttp://en.wikipedia.org/w/index.php?title=HTML_scriptinghttp://en.wikipedia.org/w/index.php?title=Web_colorshttp://en.wikipedia.org/w/index.php?title=Font_family_%28HTML%29http://en.wikipedia.org/w/index.php?title=Cascading_Style_Sheetshttp://en.wikipedia.org/w/index.php?title=Style_sheet_%28web_development%29http://en.wikipedia.org/w/index.php?title=Browser_Object_Modelhttp://en.wikipedia.org/w/index.php?title=Document_Object_Modelhttp://en.wikipedia.org/w/index.php?title=Language_codehttp://en.wikipedia.org/w/index.php?title=Unicode_and_HTMLhttp://en.wikipedia.org/w/index.php?title=Character_encodings_in_HTMLhttp://en.wikipedia.org/w/index.php?title=HTML_attributehttp://en.wikipedia.org/w/index.php?title=Span_and_divhttp://en.wikipedia.org/w/index.php?title=HTML_elementhttp://en.wikipedia.org/w/index.php?title=C-HTMLhttp://en.wikipedia.org/w/index.php?title=XHTML_Mobile_Profilehttp://en.wikipedia.org/w/index.php?title=XHTML_Basichttp://en.wikipedia.org/w/index.php?title=XHTMLhttp://en.wikipedia.org/w/index.php?title=Dynamic_HTMLhttp://en.wikipedia.org/w/index.php?title=HTML_editorhttp://en.wikipedia.org/w/index.php?title=HTML5http://en.wikipedia.org/w/index.php?title=HTMLhttp://en.wikipedia.org/w/index.php?title=HTML

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HTML5 Audio 2

Safari 3.1[2]

Mobile

Android Browser 2.3

Blackberry Browser

Google Chrome for Android

Internet Explorer Mobile 9 Mobile Safari 4

[2]

Mozilla Firefox for Android

Opera Mobile 11

Tizen

Supported audio codecs

This table documents the current support for audio codecs by the element.

Browser Operating system Formats supported by different web browsers

Ogg Vorbis WAV PCM MP3 AAC WebM Vorbis Ogg Opus

Google Chrome All supported 9 Yes Yes Yes Yes 25

Internet Explorer Windows No No 9 9 No No

Mozilla Firefox All supported 3.5 3.5 21.0, Windows only 21.0, Windows only 4.0 15.0

Opera All supported 10.50 11.00 14 14 10.60 14

Safari OS X Yes 3.1 3.1 3.1 No No

The adoption of HTML5 audio, as with HTML5 video, has become polarized between proponents of free and

patented formats. In 2007, the recommendation to use Vorbis was retracted from the specification by the W3C

together with that to use Ogg Theora, citing the lack of a format accepted by all the major browser vendors.Apple and Microsoft, which between them account for around 39% of the browser market, support the

ISO/IEC-defined formats AAC and the older MP3. They cited[citation needed]

superior performance,[citation

needed]Wikipedia:Please clarify and the risk of a submarine patent attack from formats which are believed, but not

guaranteed, to be free.

Mozilla and Opera, controlling 24% of the market, support the free and open, royalty-free Vorbis codec in Ogg and

WebM containers, and criticize the patent-encumbered nature of MP3 and AAC, which are guaranteed to be

non-free.

Google, controlling 27% of the market, has so far provided support for all common formats.

The result is that for a website to guarantee HTML5 audio for all the above browsers, it has to make two formatsavailable: Vorbis, and either MP3 or AAC.

Gecko-based applications and Safari also support PCM audio in a WAVE container.[3]

In 2012, the free and open royalty-free Opus format was released and standartized by IETF. It is supported by

Mozillas software since Gecko version 15.[4][5][6]

http://en.wikipedia.org/w/index.php?title=Internet_Engineering_Task_Forcehttp://en.wikipedia.org/w/index.php?title=Opus_%28audio_format%29http://en.wikipedia.org/w/index.php?title=WAVhttp://en.wikipedia.org/w/index.php?title=Gecko_%28layout_engine%29http://en.wikipedia.org/w/index.php?title=Vorbishttp://en.wikipedia.org/w/index.php?title=Googlehttp://en.wikipedia.org/w/index.php?title=Software_patenthttp://en.wikipedia.org/w/index.php?title=WebMhttp://en.wikipedia.org/w/index.php?title=Ogghttp://en.wikipedia.org/w/index.php?title=Vorbishttp://en.wikipedia.org/w/index.php?title=Royalty-freehttp://en.wikipedia.org/w/index.php?title=Open-source_softwarehttp://en.wikipedia.org/w/index.php?title=Free_softwarehttp://en.wikipedia.org/w/index.php?title=Opera_Softwarehttp://en.wikipedia.org/w/index.php?title=Mozillahttp://en.wikipedia.org/w/index.php?title=Submarine_patenthttp://en.wikipedia.org/wiki/Please_clarifyhttp://en.wikipedia.org/wiki/Citation_neededhttp://en.wikipedia.org/wiki/Citation_neededhttp://en.wikipedia.org/wiki/Citation_neededhttp://en.wikipedia.org/w/index.php?title=MP3http://en.wikipedia.org/w/index.php?title=Advanced_Audio_Codinghttp://en.wikipedia.org/w/index.php?title=Technical_standardhttp://en.wikipedia.org/w/index.php?title=International_Electrotechnical_Commissionhttp://en.wikipedia.org/w/index.php?title=International_Organization_for_Standardizationhttp://en.wikipedia.org/w/index.php?title=Microsofthttp://en.wikipedia.org/w/index.php?title=Apple_Inc.http://en.wikipedia.org/w/index.php?title=Ogg_Theorahttp://en.wikipedia.org/w/index.php?title=W3Chttp://en.wikipedia.org/w/index.php?title=Use_of_Ogg_formats_in_HTML5http://en.wikipedia.org/w/index.php?title=Vorbishttp://en.wikipedia.org/w/index.php?title=HTML5_videohttp://en.wikipedia.org/w/index.php?title=OS_Xhttp://en.wikipedia.org/w/index.php?title=Safari_%28web_browser%29http://en.wikipedia.org/w/index.php?title=Opera_%28web_browser%29http://en.wikipedia.org/w/index.php?title=Mozilla_Firefoxhttp://en.wikipedia.org/w/index.php?title=Microsoft_Windowshttp://en.wikipedia.org/w/index.php?title=Internet_Explorerhttp://en.wikipedia.org/w/index.php?title=Google_Chromehttp://en.wikipedia.org/w/index.php?title=Opus_%28audio_format%29http://en.wikipedia.org/w/index.php?title=Ogghttp://en.wikipedia.org/w/index.php?title=Vorbishttp://en.wikipedia.org/w/index.php?title=WebM_Projecthttp://en.wikipedia.org/w/index.php?title=Advanced_Audio_Codinghttp://en.wikipedia.org/w/index.php?title=MP3http://en.wikipedia.org/w/index.php?title=Pulse-code_modulationhttp://en.wikipedia.org/w/index.php?title=WAVhttp://en.wikipedia.org/w/index.php?title=Vorbishttp://en.wikipedia.org/w/index.php?title=Ogghttp://en.wikipedia.org/w/index.php?title=Tizenhttp://en.wikipedia.org/w/index.php?title=Internet_Explorer_Mobilehttp://en.wikipedia.org/w/index.php?title=Safari

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HTML5 Audio 3

Web Audio API and MediaStream Processing API

The Web Audio API specification developed by W3C describes a high-level JavaScript API for processing and

synthesizing audio in web applications. The primary paradigm is of an audio routing graph, where a number of

AudioNode objects are connected together to define the overall audio rendering. The actual processing will primarily

take place in the underlying implementation (typically optimized Assembly / C / C++ code), but direct JavaScript

processing and synthesis is also supported.[7]

Mozilla's Firefox browser implements a similar Audio Data API extension since version 4, implemented in 2010[8]

and released in 2011, but Mozilla warns it is non-standard and deprecated.[9]

Some JavaScript audio processing and

synthesis libraries such as Audiolet[10]

support both APIs.

The W3C Audio Working Group[11]

is also considering the MediaStream Processing API specification developed

by Mozilla.[12]

In addition to audio mixing and processing, it covers more general media streaming, including

synchronization with HTML elements, capture of audio and video streams, and peer-to-peer routing of such media

streams.[13]

Supported browsers

PC

Google Chrome 10[14]

(Enabled by default since 14[15]

)

Mozilla Firefox 23 (Needs configuration at about:config)

Opera 15

Safari 6

Mobile

Google Chrome for Android 28 (Enabled by default since 29)

Mobile Safari 6

Mozilla Firefox 23 (Needs configuration at about:config)

Tizen

Web Speech API

The Web Speech API aims to provide an alternative input method for web applications (without using a keyboard).

With this API, developers can give web apps the ability to transcribe your voice to text, from your computer's

microphone. The recorded audio is sent to speech servers for transcription, after which the text is typed out for you.

The API itself is agnostic of the underlying speech recognition implementation and can support both server based as

well as embedded recognizers.[16]

The HTML Speech Incubator group has proposed the implementation of

audio-speech technology in browsers in the form of uniform, cross-platform APIs. The API contains both:[17]

Speech Input API

Text to Speech API

Google integrated this feature into Google Chrome on March 2011.[18]

Letting its users search the web with their

voice with code like:

function startSearch(event) {

event.target.form.submit();

}

http://en.wikipedia.org/w/index.php?title=Web_Speech_APIhttp://en.wikipedia.org/w/index.php?title=Tizenhttp://en.wikipedia.org/w/index.php?title=Mozilla_Firefoxhttp://en.wikipedia.org/w/index.php?title=Safarihttp://en.wikipedia.org/w/index.php?title=Operahttp://en.wikipedia.org/w/index.php?title=Mozilla_Firefoxhttp://en.wikipedia.org/w/index.php?title=Google_Chromehttp://en.wikipedia.org/w/index.php?title=WebRTChttp://en.wikipedia.org/w/index.php?title=Mozillahttp://en.wikipedia.org/w/index.php?title=MediaStream_Processing_APIhttp://www.w3.org/2011/audio/http://oampo.github.com/Audiolet/http://en.wikipedia.org/w/index.php?title=Firefox_4http://en.wikipedia.org/w/index.php?title=W3Chttp://en.wikipedia.org/w/index.php?title=Web_Audio_API

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HTML5 Audio 4

Supported Browsers

PC

Google Chrome 25

References

[1] HTML5 audio element - W3C (http://www.w3.org/TR/html5/embedded-content-0. html#the-audio-element)

[2] About HTML5 Audio and Video - Safari HTML5 Audio and Video Guide (http://developer. apple. com/library/safari/#documentation/

AudioVideo/Conceptual/Using_HTML5_Audio_Video/Introduction/Introduction. html)

[3] https://developer.mozilla. org/en-US/docs/Media_formats_supported_by_the_audio_and_video_elements

[4] https://developer.mozilla. org/en-US/docs/Media_formats_supported_by_the_audio_and_video_elements#Ogg_Opus

[5] https://www.xiph. org/press/2012/rfc-6716/

[6] https://hacks.mozilla. org/2012/09/its-opus-it-rocks-and-now-its-an-audio-codec-standard/

[10] http://oampo.github. com/Audiolet/

[11] http://www.w3.org/2011/audio/

[14] Web Audio API is now available in Chrome (http:/

/

lists.

w3.

org/

Archives/

Public/

public-xg-audio/

2011Feb/

0000.

html)

External links

HTML5 audio element - W3C (http://www.w3. org/TR/html5/embedded-content-0.html#the-audio-element)

Web Audio API - W3C (http://www.w3.org/TR/webaudio/)

MediaStream Processing API - W3C (http://www.w3.org/TR/streamproc/)

Web Speech API - W3C (https://dvcs.w3.org/hg/speech-api/raw-file/9a0075d25326/speechapi.html)

https://dvcs.w3.org/hg/speech-api/raw-file/9a0075d25326/speechapi.htmlhttp://www.w3.org/TR/streamproc/http://www.w3.org/TR/webaudio/http://www.w3.org/TR/html5/embedded-content-0.html#the-audio-elementhttp://lists.w3.org/Archives/Public/public-xg-audio/2011Feb/0000.htmlhttp://www.w3.org/2011/audio/http://oampo.github.com/Audiolet/https://hacks.mozilla.org/2012/09/its-opus-it-rocks-and-now-its-an-audio-codec-standard/https://www.xiph.org/press/2012/rfc-6716/https://developer.mozilla.org/en-US/docs/Media_formats_supported_by_the_audio_and_video_elements#Ogg_Opushttps://developer.mozilla.org/en-US/docs/Media_formats_supported_by_the_audio_and_video_elementshttp://developer.apple.com/library/safari/#documentation/AudioVideo/Conceptual/Using_HTML5_Audio_Video/Introduction/Introduction.htmlhttp://developer.apple.com/library/safari/#documentation/AudioVideo/Conceptual/Using_HTML5_Audio_Video/Introduction/Introduction.htmlhttp://www.w3.org/TR/html5/embedded-content-0.html#the-audio-elementhttp://en.wikipedia.org/w/index.php?title=Google_Chrome

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Article Sources and Contributors 5

Article Sources and ContributorsHTML5 Audio Source: http://en.wikipedia.org/w/index.php?oldid=570784655 Contributors: AVRS, Czarkoff, EoGuy, Frap, Gidoca, MatthewHaywood, Mcld, MoreNet, Neme112, Pmsyyz,

Richtaur, Skierpage, Smyth, Spencerk, Stemby, Tassedethe, Uluboz, Voidvector, Widefox, Woohookitty, , 11 anonymous edits

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