//  创建一个 AudioContext
const ctx = tt.getAudioContext();
let request = new XMLHttpRequest();
request.open("GET", "test.ogg", true);
request.responseType = "arraybuffer";
request.onload = function () {
  let audioData = request.response;
  ctx
    .decodeAudioData(audioData)
    .then((audioBuffer) => {
      console.log(audioBuffer);
      const source = ctx.createBufferSource();
      source.buffer = audioBuffer;
      source.connect(ctx.destination);
      source.loop = true;
      source.start();
      source.onended = function () {
        console.log("onended called", this);
      };
    })
    .catch((err) => {
      console.error("解码出错", err);
    });
};
request.send();