标签： javascript html5 audiocontext
我使用AudioContext HTML5录制麦克风的音频，输出（每帧）如下：
-0.000457763671875,-0.0003662109375,-0.00018310546875,0,0.000152587890625,0.000244140625,0.000244140625,0.000091552734375....
这些数字是什么以及如何将其转换为mp3或ogg？