发明名称 Frequency range equalization method for microphone array e.g. for hands-free phone device in automobile
摘要 The frequency range equalization method provides the amplitude and phase difference between the microphone signals for each microphone pair of the microphone array (M1,..Mn), after transformation into the frequency range, at spaced intervals during speaking, for adjusting the frequency range equalization correction factors. An Independent claim for a frequency range equalization device is also included.
申请公布号 DE19818611(C1) 申请公布日期 1999.09.16
申请号 DE19981018611 申请日期 1998.04.20
申请人 DEUTSCHE TELEKOM AG 发明人 ZELINSKI, RAINER
分类号 H04M9/08;H04R3/00;(IPC1-7):H04R3/04;H04M1/60 主分类号 H04M9/08
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