公开(公告)号：US20160080873A1

公开(公告)日：2016-03-17

申请号：US14855979

申请日：2015-09-16

Applicant: OTICON A/S

Inventor： Meng GUO ,  Jan Mark de HAAN ,  Jesper JENSEN

IPC: H04R25/00

CPC classification number: H04R25/405 ,  H04R3/005 ,  H04R5/033 ,  H04R25/407 ,  H04R25/505 ,  H04R2225/67 ,  H04R2430/25

Abstract: The application relates to a hearing device comprising a beamformer of the generalized sidelobe canceler (GSC) type. The application further relates to a method of operating a hearing device. The disclosure addresses a problem which occurs when using a GSC structure in a hearing device application. The problem arises due to a non-ideal target-cancelling beamformer. As a consequence, a target signal impinging from the look direction can—unintentionally—be attenuated by as much as 30 dB. To resolve this problem, it is proposed to monitor the difference between the output signals from the all-pass beamformer and the target-cancelling beamformer to control a time-varying regularization parameter in the GSC update. This has the advantage of providing a computationally simple solution to the non-ideality of the GSC beamformer. The invention may e.g. be used in hearing aids, headsets, ear phones, active ear protection systems, or combinations thereof.

Abstract translation: 本申请涉及一种包括广义旁瓣消除器（GSC）类型的波束形成器的听力装置。 本申请还涉及一种操作听力装置的方法。 本公开涉及在听力设备应用中使用GSC结构时发生的问题。 问题出现是由于非理想的目标消除波束形成器。 因此，从外观方向入射的目标信号可能无意中衰减多达30dB。 为了解决这个问题，提出了监控全通波束形成器和目标消除波束形成器的输出信号之间的差异，以控制GSC更新中的时变正则化参数。 这具有为GSC波束形成器的非理想性提供计算上简单的解决方案的优点。 本发明可以例如 用于助听器，耳机，耳机，主动耳朵保护系统或其组合。