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我使用 AudioContext HTML5 从麦克风录制音频,输出(每一帧)是这样的:

-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 ?

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