我也遇到了先下载，在拿得到的地址去播放，确实走了success，但是完全没有声音啊，怎么破。有人解决了吗？

    var url = ‘http://ot0t7lbj0.bkt.clouddn.com/1510035399777.amr?e=1510039013&token=Qt8wTRR_kJdyK8q1z0DrYB8iufe9bgiFBeUHhMxR:IEz8cu99NiO8coS-pmv0tJW2r6E=’

    wx.downloadFile({

      url: url,

      success: function (res) {

        console.log(res.tempFilePath)

        wx.playVoice({

          filePath: res.tempFilePath,

          success:function(res) {

            console.log(res)

          },

          complete: function (res) {

            console.log(‘playVoice res’)

            console.log(res)

          }

        })

      }

    })

打印地址：

wxfile://tmp_388763900o6zAJs9YVxP64hKIK5Dc11Lwmg7sf83d83bd75ecb66dc4732dae1659b9bc.amr

index.js [sm]:108 Object {errMsg: “playVoice:ok”}

index.js [sm]:111 playVoice res

index.js [sm]:112 Object {errMsg: “playVoice:ok”}