创建session

createSession.js

var fcVoice = function (voiceCallback) {

  /* 标识麦克风按钮状态，按下状态值为true，否则为false */
  var mic_pressed = false;

  /**
   * 初始化Session会话
   */
  var session = new IFlyIatSession({
    "callback": {
      "onResult": function (err, result) {
        /* 若回调的err为空或错误码为0，则会话成功，可提取识别结果进行显示*/
        if (err == null || err == undefined || err == 0) {
          if (result == '' || result == null)
            console.log("没有获取到识别结果");
          else
            console.log(result);
          if (voiceCallback) {
            voiceCallback(result);
          }
          /* 若回调的err不为空且错误码不为0，则会话失败，可提取错误码 */
        } else {
          console.log('error code : ' + err + ", error description : " + result);
        }
        mic_pressed = false;
        console.log('end');

      },
      "onVolume": function (volume) {

      },
      "onError": function () {
        mic_pressed = false;
      },
      "onProcess": function (status) {
        switch (status) {
          case 'onStart':
            console.log("服务初始化...");
            break;
          case 'normalVolume':
          case 'started':
            console.log("倾听中...");
            break;
          case 'onStop':
            console.log("等待结果...");
            break;
          case 'onEnd':
            console.log('end.');
            break;
          case 'lowVolume':
            console.log("倾听中...(声音过小)");
            break;
          default:
            console.log(status);
        }
      }
    }
  });

  if (!session.isSupport()) {
    console.log("当前浏览器不支持！");
    return;
  }

  var play = function () {
    if (!mic_pressed) {
      var ssb_param = {
        "grammar_list": null,
        "params": "appid=58f45210,appidkey=4da080c4474a1986, lang = sms, acous = anhui, aue=speex-wb;-1, usr = mkchen, ssm = 1, sub = iat, net_type = wifi, rse = utf8, ent =sms16k, rst = plain, auf  = audio/L16;rate=16000, vad_enable = 1, vad_timeout = 5000, vad_speech_tail = 500, compress = igzip"
      };

      /* 调用开始录音接口，通过function(volume)和function(err, obj)回调音量和识别结果 */
      session.start(ssb_param);
      mic_pressed = true;
    }
    else {
      //停止麦克风录音，仍会返回已传录音的识别结果.
      session.stop();
    }
  }

  /**
   * 取消本次会话识别
   */
  var cancel = function () {
    session.cancel();
  }

  fcVoice.start = function () {
    play();
    console.log('start');
  }

  fcVoice.end = function () {
    session.cancel();
  }
  //页面不可见，断开麦克风调用
  document.addEventListener("visibilitychange", function () {
    if (document.hidden == true) {
      session.kill();
    }
  });

  return session;
}

function fcVoiceInit(voiceCallback) {
  return fcVoice(voiceCallback);
}