wx.getRecorderManager采样率bug反馈

        recordoptions = {

          duration: 2 * 60 * 1000,

          sampleRate: 44100,

          numberOfChannels: 1,

          encodeBitRate: 64000,

          format: ‘mp3’

        }

录出来的结果，mp3文件的encodeBitRate是320000，足足比设置的值大了5倍