Microsoft azure认知服务-Bing文本到语音API-使用JavaScript播放音频

我在跟踪这个 documentation 使用文本到语音rest api将文本转换为语音。

我可以成功地使用 Postman 我可以把音频付费 PostMan . 但是我不能用 JavaScript . 下面是我的 Javascript 代码。我不知道该怎么办 response .

function bingSpeech(message) {
    var authToken = "TokenToCommunicateWithRestAPI";

    var http = new XMLHttpRequest();

    var params = `<speak version='1.0' xml:lang='en-US'><voice xml:lang='en-US' xml:gender='Female' name='Microsoft Server Speech Text to Speech Voice (en-US, JessaRUS)'>${message}</voice></speak>`;

    http.open('POST', 'https://speech.platform.bing.com/synthesize', true);

    //Send the proper header information along with the request
    http.setRequestHeader("Content-Type", "application/ssml+xml");
    http.setRequestHeader("Authorization", "bearer " + authToken);
    http.setRequestHeader("X-Microsoft-OutputFormat", "audio-16khz-32kbitrate-mono-mp3");

    http.onreadystatechange = function () {
        if (http.readyState == 4 && http.status == 200) {
            // I am getting the respone, but I'm not sure how to play the audio file. Need help here
        }
    }
    http.send(params);
}

谢谢。