HTML audio: Difference between revisions

Revision as of 07:02, 4 October 2012

Revision as of 17:29, 5 October 2012

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[[Apple Inc.|Apple]] and [[Microsoft]], which between them account for around 39% of the browser market, support the [[Technical standard|industry standard]], [[ISO|ISO defined]] formats of [[AAC]] and the older [[MP3]]. They {{citation needed span|text=cited|date=September 2012}} {{citation needed span|text=superior performance,|date=September 2012}} and the risk of a [[submarine patent]] attack from formats which are believed, but not guaranteed, to be “free”.

[[Mozilla]] and [[Opera Software|Opera]], controlling 24% of the market, support the [[Free software|free]] and [[Open-source software|open]], [[royalty-free]] [[Ogg Vorbis]] codec in [[Ogg]] and [[WebM]] formatscontainers, and criticise 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 users, it has to make two formats available, often [[Vorbis]], as used on Wikipedia[[Wikimedia]] sites, and MP3 or AAC.

[[Gecko (layout engine)|Gecko]]-based applications and Safari also support PCM audio in a [[WAV|WAVE]] container.<ref>https://developer.mozilla.org/en-US/docs/Media_formats_supported_by_the_audio_and_video_elements</ref>

In 2012, the free and open royalty-free [[Opus (audio format)|Opus]] format was released and standartised by [[Internet Engineering Task Force|IETF]]. It is supported by Mozilla’s software since Gecko version 15.<ref>https://developer.mozilla.org/en-US/docs/Media_formats_supported_by_the_audio_and_video_elements#Ogg_Opus</ref><ref>https://www.xiph.org/press/2012/rfc-6716/</ref><ref>https://hacks.mozilla.org/2012/09/its-opus-it-rocks-and-now-its-an-audio-codec-standard/</ref>

==See also==