t fetch('/talk', {
      method: 'POST',
      headers: {
        'content-type': 'application/json',
      },
      body: JSON.stringify(data),
    })).json();
    if(res.code === '0') {
      const sound = new Howl({
        src: [res.result.audioUrl],
        onend: async function() {
          console.log("ONEND");  
          await promise;
          start();
        }
      });
      p.textContent = res.result.reply;
      sound.play();
    } else {
      p.textContent = res.msg;
      await promise;
