Unity调取移动端的麦克风进行录音并播放

#region 模块信息
// **********************************************************************
// Copyright (C) 2018 Blazors
// Please contact me if you have any questions
// File Name:    VoiceChat
// Author:    romantic123fly
// WeChat||QQ:   at853394528 || 853394528 
// **********************************************************************
#endregion
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;
 
 
//此脚本须挂在录音按钮上
public class Record : MonoBehaviour, IPointerDownHandler, IPointerUpHandler
{
 float tirecordingTimemer = 0;//录音时长限制
 public AudioSource aud;//存储声音
 public Text ShowTimeHint;//剩余时间的文字提示
 public void OnPointerDown(PointerEventData eventData)
 {
  Debug.Log("Start");
  StartCoroutine("KeepTime");
  aud.clip = Microphone.Start("Built-in Microphone", false, 60, 44100);
 }
 public void OnPointerUp(PointerEventData eventData)
 {
  Microphone.End("Built-in Microphone");
  StopCoroutine("KeepTime");
  Debug.Log("Over");
  aud.Play();
 }
 //此处开携程也行，用while也可以，放在updata里也没问题
 IEnumerator KeepTime()
 {
  for (tirecordingTimemer = 10; tirecordingTimemer >= 0; tirecordingTimemer -= Time.deltaTime)
  {
   if (tirecordingTimemer <= 10)
   {
    ShowTimeHint.text = "你还可以录 " + (int)tirecordingTimemer + " 秒";
    if (tirecordingTimemer < 1)
    {
     ShowTimeHint.text = "时间到";
     Microphone.End("Built-in Microphone");
    }
   }
   yield return 0;
  }
 }
}