button点击

       <view>
       <button @click="startPlay">开始播放</button>
       </view>

方法实现

  startPlay() {  
      const innerAudioContext = uni.createInnerAudioContext();
      innerAudioContext.src = '/static/sounds/oqc.mp3';
      innerAudioContext.play()
       }

自定义播放 本地调试可以 打包 APK调用失败（需补充使用）

  startPlay() {  
     this.a(); // 开始播放的入口 
     },  
     a(){

         var time = new Date();
          console.log('time:',time)
          const asd = '请001号前来办理业务'
          const msg = new SpeechSynthesisUtterance()
          msg.text = asd
          let that = this
          msg.onend = function(){
            that.count+=1
            // alert('播放结束')
            setTimeout(function(){
          that.play()

            },1000)
          }
          window.speechSynthesis.speak(msg)
    },
     play(){
          console.log('this.count',this.count)
          if(this.count < 3){
            this.a()
          }else{
            this.count = 0
            console.log('播放完毕')
          }
          // setInterval(this.cyclePlay(),1000)
        },