var url=‘../content/audio/海阔天空.mp3‘;
if (!window.AudioContext) {
    alert(‘您的浏览器不支持AudioContext‘);
} else {
    //创建上下文
    var ctx = new AudioContext();
    //使用Ajax获取音频文件
            
    var request = new XMLHttpRequest();
    request.open(‘GET‘, url, true);
    request.responseType = ‘arraybuffer‘;//配置数据的返回类型
    //加载完成
    request.onload = function () {
        var arraybuffer = request.response;
        ctx.decodeAudioData(arraybuffer, function (buffer) {
            //处理成功返回的数据类型为AudioBuffer 
            console.info(buffer);

            //创建AudioBufferSourceNode对象
            var source = ctx.createBufferSource();
            source.buffer = buffer;
            source.connect(ctx.destination);
            //指定位置开始播放
            source.start(0);

        }, function (e) {
            console.info(‘处理出错‘);
        });
    }
    request.send();
}

<div class="container">
    <button class="btn btn-primary" id="playBtn">
        <i class="glyphicon glyphicon-pause"></i>
    </button>
</div>
<script>
    var url=‘../content/audio/海阔天空.mp3‘;
    if (!window.AudioContext) {
        alert(‘您的浏览器不支持AudioContext‘);
    } else {
        //创建上下文
        var ctx = new AudioContext();
        var source = null;
        //使用Ajax获取音频文件
        var request = new XMLHttpRequest();
        request.open(‘GET‘, url, true);
        request.responseType = ‘arraybuffer‘;//配置数据的返回类型
        //加载完成
        request.onload = function () {
            var arraybuffer = request.response;
            ctx.decodeAudioData(arraybuffer, function (buffer) {
                //处理成功返回的数据类型为AudioBuffer 
                //console.info(buffer);

                //创建AudioBufferSourceNode对象
                source = ctx.createBufferSource();
                source.buffer = buffer;
                source.connect(ctx.destination);
                //指定位置开始播放
                source.start(0);
                console.info(source);

            }, function (e) {
                console.info(‘处理出错‘);
            });
        }
        request.send();
            
        //绑定播放按钮
        $(‘#playBtn‘).click(function () {
            var icon = $(this).find(‘i‘);;
            icon.toggleClass(‘glyphicon-play‘).toggleClass(‘glyphicon-pause‘);
            //停止播放
            source.stop();
        });
    }
       

</script>