手机正在不断减少的规模，从而使声学…

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Mobile phones are constantly decreasing in size, thereby complicating the acoustical functionality. Signal processing methods can be used to partially mitigate this problem. In this paper we suggest a method which uses multiple spectral subtraction functions and two microphones, introducing only a short signal delay.-Mobile phones are constantly decreasing i n size, thereby complicating the acoustical function ality. Signal processing methods can be used to partially mitigate this problem. In this paper we suggest a method which uses multiple spectra l subtraction functions and two microphones. introducing only a short signal delay.