公开(公告)号：US20140044275A1

公开(公告)日：2014-02-13

申请号：US13965767

申请日：2013-08-13

Applicant: Apple Inc.

Inventor： Andre L. Goldstein ,  Yacine Azmi ,  Esge B. Andersen

IPC: H04R3/00

CPC classification number: H04R3/002 ,  H04R1/1083 ,  H04R3/005 ,  H04R3/02 ,  H04R2410/05 ,  H04R2420/07

Abstract: A personal listening system has an active noise control (ANC) controller that produces an anti-noise signal. A head worn audio device for a user has a speaker to convert the anti-noise signal into anti-noise, an error microphone, and a reference microphone. The controller uses signals from the error and reference microphones to produce the anti-noise signal in accordance with an adaptive filter algorithm that has an adjustable parameter which changes so as to move the point at which acoustic cancellation occurs from the error microphone and closer to the user's eardrum. Other embodiments are also described and claimed.

Abstract translation: 个人聆听系统具有产生抗噪声信号的主动噪声控制（ANC）控制器。 用于用户的头戴式音频设备具有扬声器，用于将抗噪声信号转换为抗噪声，误差麦克风和参考麦克风。 控制器使用来自误差和参考麦克风的信号根据自适应滤波器算法产生抗噪声信号，该自适应滤波器算法具有可调整的参数，该参数发生变化，以便使误差麦克风发生声学消除的点移动到更接近于 用户耳膜 还描述和要求保护其他实施例。