中文摘要：

耳声发射（OAE）是一种产生于内耳耳蜗，经中耳传导释放到外耳道的能被检测到的微弱音频能量。OAE的发现证明了耳蜗不仅能被动接收声信号，也能主动释放音频能量，从而确立了耳蜗是一个双向换能器的学说。根据刺激声的有无，可将OAE分为自发耳声发射（SOAE）和诱发耳声发射（EOAE）两大类，而不同的刺激声也会诱发出不同的耳声发射。为了检测并分析多种耳声发射，本课题组开发了一个综合多功能的耳声发射检测系统。该系统使用NI公司的USB6211数据采集卡进行信号的A／D和D／A变换，运行于Labview平台，实现了对SOAE、SSOAE（同步SOAE）、TEOAE和DPOAE的检测，并能进行响应的对应OAE的信号分析。

英文摘要：

Otoacoustic emission （OAE） is an acoustic energy, which can be detected, evoked from human cochlea and transmitted to the outer ear through middle ear canal. The recognition of OAE helps establish a theory that cochlea is a bidirectional converter, it means that that the cochlea not only receives sound, but also produces acoustic energy. Based on the existence of stimulation, OAE can be classified to spontaneous OAE（SOAE） and evoked OAE（EOAE）, and different stimulation will evoke different OAE. In order to detect these OAEs, a multifunetional OAE detecting system is developed. This system, which is based on the NI DAQ USB6211 and Labview, has successfully detected SOAE, SSOAE（synchronized SOAE）, TEOAE and DPOAE, and it can finish the OAE signal analysis.