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    • 8. 发明授权
    • Method and device for in ear canal echo suppression
    • 用于耳道回声抑制的方法和装置
    • US08526645B2
    • 2013-09-03
    • US12170171
    • 2008-07-09
    • Marc BoillotJohn UsherJason McIntoshSteven Goldstein
    • Marc BoillotJohn UsherJason McIntoshSteven Goldstein
    • H04R5/02
    • H04R3/002H04R1/1016H04R25/02
    • An earpiece (100) and acoustic management module (300) for in-ear canal echo suppression control suitable is provided. The earpiece can include an Ambient Sound Microphone (111) to capture ambient sound, an Ear Canal Receiver (125) to deliver audio content to an ear canal, an Ear Canal Microphone (123) configured to capture internal sound, and a processor (121) to generate a voice activity level (622) and suppress an echo of spoken voice in the electronic internal signal, and mix an electronic ambient signal with an electronic internal signal in a ratio dependent on the voice activity level and a background noise level to produce a mixed signal (323) that is delivered to the ear canal (131).
    • 提供用于入耳式回声抑制控制的听筒(100)和声学管理模块(300)。 听筒可以包括用于捕获环境声音的环境声音麦克风​​(111),用于向耳道传送音频内容的耳道接收器(125),被配置为捕获内部声音的耳道麦克风(123)和处理器(121 )以产生语音活动级别(622)并且抑制电子内部信号中的语音的回声,并且以电子内部信号的混合电子环境信号的比例取决于语音活动水平和背景噪声水平以产生 输送到耳道(131)的混合信号(323)。