Objective: The purpose of this study was to examine adult speech recognition for words presented in background noisewhen the adults used Dual-microphone and Tri-microphone hearing aid technology.

• 目的:比较在噪音环境下三麦克风助听器与双麦克风助听器的指向性对成年听力损失患者的言语分辨率提高的影响和效果。