使用 javascript 播放以 base64 编码的 .wav 声音文件

play .wav sound file encoded in base64 with javascript(使用 javascript 播放以 base64 编码的 .wav 声音文件)

问题描述

我可以通过以下方式使用 javascript 播放声音，

Am able to play sound with javascript through the following,

    var snd = new Audio('sound.wav');
    snd.play();

这会播放所需的声音，但有时加载速度很慢，甚至可能根本不加载所以我用 base 64 对声音进行了编码，并尝试以这种方式播放.

This plays the required sound but sometimes it loads slowly or might not even load at all so i encoded the sound in base 64 and tried to play it this way.

      var splash = {
prefix: "data:audio/wav;base64,",
sound: [ "*base64 string here*" ] };

    var snd = new Audio(splash); 
    snd.play();

但声音不播放，有什么办法吗?

but the sound does not play, is there a way around it ?

推荐答案

这看起来不像为 HTMLAudioElement/<audio>.

That doesn't look like the correct way to use the Audio constructor for HTMLAudioElement / <audio>.

微调

var snd = new Audio("data:audio/wav;base64," + base64string);
snd.play();

如果它在控制台中有效但在脚本中无效，则可能会被垃圾收集，在这种情况下，它的范围将保持不变

If it works in console but not in script, it may be getting garbage collected, in which case scope it so it will stay

var Sound = (function () {
    var df = document.createDocumentFragment();
    return function Sound(src) {
        var snd = new Audio(src);
        df.appendChild(snd); // keep in fragment until finished playing
        snd.addEventListener('ended', function () {df.removeChild(snd);});
        snd.play();
        return snd;
    }
}());
// then do it
var snd = Sound("data:audio/wav;base64," + base64string);

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