目前,WEB页面上没有标准的方式来播放音频文件,大多数的音频文件是使用插件来播放,而众多浏览器都使用了不同的插件。而HTML5的到来,给我们提供了一个标准的方式来播放WEB中的音频文件,用户不再为浏览器升级诸如Adobe Flash、Apple QuickTime等播放插件,只需使用现代浏览器就可以聆听任何可以发出声音的WEB网站。
WEB中的Audio标签
HTML5定义了一个新的元素用来指定标准的方式来插入音频文件到web页面中:
属性 | 值 | 描述 |
autoplay | true | false | 如果是 true,则音频在就绪后马上播放。 |
controls | true | false | 如果是 true,则向用户显示控件,比如播放按钮。 |
end | numeric value | 定义播放器在音频流中的何处停止播放。默认地,声音会播放到结尾。 |
loopend | numeric value | 定义在音频流中循环播放停止的位置,默认是 end 属性的值。 |
loopstart | numeric value | 定义在音频流中循环播放的开始位置。默认是 start 属性的值。 |
playcount | numeric value | 定义音频片断播放多少次。默认是 1。 |
src | url | 所播放音频的 url。 |
start | numeric value | 定义播放器在音频流中开始播放的位置。默认地,声音在开头进行播放。 |
目前支持audio标签的浏览器有:
IE9,Firefox, Opera,Chrome和Safari都支持
注意:IE8和更早的版本,不支持
如何使用Audio
要在HTML5中播放音频,需要在body中插入以下代码:
你可以在标签之间插入文字内容,这样如果浏览器不支持audio,那么会显示这些文字。
也许你会问auto中怎么会包含3个source标签呢?这是为了浏览器和音频格式的兼容性,浏览器制造商并非都同意使用某一种音频文件格式。例如,Chrome、Internet Explorer 9 (IE9) 和 Safari 浏览器不支持 WAV 文件,这是一种使用非压缩格式且正在衰败的标准。我们将每个视频文件名放在单独的
HTML5浏览器和音频格式兼容性
音频格式 | Chrome | Firefox | IE9 | Opera | Safari |
OGG | 支持 | 支持 | 支持 | 不支持 | 不支持 |
MP3 | 支持 | 不支持 | 支持 | 不支持 | 支持 |
WAV | 不支持 | 支持 | 不支持 | 支持 | 不支持 |
此外,不同浏览器音频空间外观也不一样。
HTML5 让开发人员可以更轻松地提供大量WEB体验。
下载地址

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