最近寫一個個人小程序 想給里面加點音效 遇到了不能同時播放兩個音效的問題 搜到了一些資料整理了一下
原理就是創(chuàng)建5個innerAudioContext實例化對象，輪流調(diào)用。(小程序只能同時存在5個音頻實例）。
附上demo：

const innerAudioContext1 = wx.createInnerAudioContext(),
  innerAudioContext2 = wx.createInnerAudioContext(),
  innerAudioContext3 = wx.createInnerAudioContext(),
  innerAudioContext4 = wx.createInnerAudioContext(),
  innerAudioContext5 = wx.createInnerAudioContext();

Page({
  tap() {    // 此函數(shù)點擊調(diào)用
    this.vioce();
  }，
  vioce() {
    const inner = [innerAudioContext1, innerAudioContext2, innerAudioContext3, innerAudioContext4, innerAudioContext5];
    let filePath = "音頻地址"；
    let index = app.globalData.index;
    index++;
    if (index > 4) {
      index = 0
    }
    app.globalData.index = index
    inner[index].src = filePath;  
    inner[index].stop()
    inner[index].play()

  }
})

這個API已經(jīng)沒人維護 現(xiàn)在用最新的 BackgroundAudioManager
示例DEMO

const bgMusic = wx.getBackgroundAudioManager()  //創(chuàng)建背景音樂
Page({
 
  data: {
    id: '',//請求數(shù)據(jù)參數(shù)id
    picMsg: {},//接收數(shù)據(jù)對象
  },
 
  onLoad: function (options) {
    var that = this
    that.setData({
      id: options.id,
    })
    that.getPicInfo() //請求服務(wù)器
  }, 
  // 開始播放
  listenerButtonPlay: function (src) {
    var that = this
    console.log(src)
    bgMusic.src = src;
    bgMusic.onTimeUpdate(() => {  //監(jiān)聽音頻播放進度
      console.log(bgMusic.currentTime)
    })
    bgMusic.onEnded(() => {  //監(jiān)聽音樂自然播放結(jié)束
      console.log("音樂播放結(jié)束");
      that.listenerButtonPlay(that.data.picMsg.mp3)
    })
    bgMusic.play(); //播放音樂
  },
  getPicInfo() {
    var that = this
    wx.request({
      url: 'https://xxxxx.xxxxx.com/1.json?id=' + that.data.id,
      header: {
        'content-type': 'application/json'
      },
      method: 'GET',
      success: function (res) {
        that.listenerButtonPlay(res.data.data.mp3) //成功回調(diào)執(zhí)行播放音樂
        that.setData({
          picMsg: res.data.data, //賦值對象
        })
 
      }
    })
  },
 
  onUnload() {
    var that = this
    that.listenerButtonStop()//頁面卸載時停止播放
    console.log("離開")
  },
 
  //暫停
  audioPause: function () {
    var that = this
    bgMusic.pause(); //暫停播放音樂
    console.log('暫停')
  },
  audioPlay: function () {
    var that = this
    bgMusic.play(); //停止播放
    console.log('繼續(xù)播放')
  },
  //停止播放
  listenerButtonStop: function () {
    bgMusic.stop()
  },
})