cnchar
/
audio.html

<!--
 * @Author: chenzhongsheng
 * @Date: 2023-03-18 16:52:44
 * @Description: Coding something
-->
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        window.AudioContext = window.AudioContext || window.webkitAudioContext || window.mozAudioContext || window.msAudioContext;
try {
    var context = new window.AudioContext();;
    var source = null;
    var audioBuffer = null;

    function stopSound() {
        if (source) {
            source.stop(0); //立即停止
        }
    }

    function playSound() {
        source = context.createBufferSource();
        source.playbackRate.value = 1;
        source.buffer = audioBuffer;
        // source.loop = true; //循环播放


        const gain = context.createGain();
        gain.gain.value = 1;
        source.connect(gain);
        gain.connect(context.destination);

        // source.connect(context.destination);
        source.start(0); //立即播放
    }

    function initSound(arrayBuffer) {
        context.decodeAudioData(arrayBuffer, function(buffer) { //解码成功时的回调函数
            audioBuffer = buffer;
            playSound();
        }, function(e) { //解码出错时的回调函数
            console.log('Error decoding file', e);
        });
    }

    function loadAudioFile(url) {
        var xhr = new XMLHttpRequest(); //通过XHR下载音频文件
        xhr.open('GET', url, true);
        xhr.responseType = 'arraybuffer';
        xhr.onreadystatechange = () => {
            if (xhr.status === 200) {
                if (xhr.readyState === 4) {
                    console.log('response decodeArrayBuffer', xhr.response);
                    // decodeArrayBuffer(xhr.response, resolve);
                    initSound(xhr.response);
                }
            } else {
                resolve(null);
            }
        };
        // xhr.onload = function(e) { //下载完成
        //     initSound(this.response);
        // };
        xhr.send();
    }
    loadAudioFile('https://unpkg.com/cnchar-data@1.1.0/voice/hao3.mp3');
} catch (e) {
    console.log('!Your browser does not support AudioContext');
}
    </script>
</body>
</html>