An earphone microphone is composed of a main unit and an insertion part formed in L shape. Two receiver connected to the outer surface of the main unit and exposed to the ear of the user, and a receiver attached to the user's ear canal inserted into the insertion part of the end user, and placed with the opposite position of the tympanic membrane. The signal processor generates a differential signal between two output signals that are exposed to the receiver outside the user's ear. The differential signal passes through high pass filtering and then accumulates to the output signal of the receiver placed inside the outdoor ear canal, thereby producing an acoustic signal representing the user's voice. The sound signal includes a sufficient number of frequency components (for example, a frequency component higher than 3kHz) necessary to distinguish the user's voice.
【技术实现步骤摘要】
【技术保护点】
１．一种耳机麦克风，包括：插入部分，其插入用户耳内；第一接收器，其附接至所述插入部分的末端，其中当所述插入部分插入用户的外耳道时，所述第一接收器置于与用户的鼓膜相反的位置处；第二接收器，其附接至这样的外表面：该外表面暴露并且外置于所述插入部分插入其中的用户的外耳道；以及信号处理器，其将所述第二接收器的输出信号累加至所述第一接收器的输出信号，以产生表示用户声音的声音信号。
【技术特征摘要】
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