Analysis of audio (audio) in html5
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Using html5 audio background
Until now, there was still no standard that aimed at playing audio on web pages. Today, most audio is played through plug-ins such as Flash. However, not all browsers have the same plugins. HTML5 specifies a standard way to include audio through the audio element, which can play a sound file or audio stream.
Audio format
Currently, the audio element supports three audio formats: Ogg Vorbis, Mp3, and Wav. This is the audio format browser support is as follows:
| Audio format | IE 9 | Firefox 3.5 | Opera 10.5 | Chrome 3.0 | Safari 3.0 |
|---|---|---|---|---|---|
| Ogg Vorbis | √ | √ | √ | ||
| MP3 | √ | √ | √ | ||
| Wav | √ | #√ | √ |
##Use the audio element Implement audio playback
The controls attribute of the audio element is used to add play, pause and volume controls. The content inserted between is for browsers that do not support the audio element. As shown, the source element can link different audio files to solve the problem of browser compatibility with audio formats. Two source elements are used below to enable the above five browsers to play the audio. The simple code is as follows:<audio controls="controls">该浏览器不支持该格式音频的播放 <source src="../videoAudio/1.mp3"></source> <source src="../videoAudio/1.wav"></source> </audio>
Use Dom to operate audio
Use custom buttons to implement the play and pause functions of the controls attribute. The code is as follows:<button onclick="controlPlay()">播放/停止</button>
<audio id="vioce" >该浏览器不支持该格式音频的播放
<source src="../videoAudio/1.mp3"></source>
<source src="../videoAudio/1.wav"></source>
</audio>
<script>
var voice =document.getElementById("vioce");
function controlPlay(){
if(voice.paused){//判断是否停止了
voice.play();//播放
} else{
voice.pause();//停止
}
}
</script>Analysis of the video (video) element in html5
The use and use of
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