公开(公告)号：US09826307B2

公开(公告)日：2017-11-21

申请号：US14897147

申请日：2013-06-11

Applicant: TOA Corporation

Inventor： Hiroshi Kubota ,  Tomohiro Jonan

IPC: H04R3/00 ,  H04R1/40

CPC classification number: H04R3/005 ,  H04R1/406 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2203/12 ,  H04R2430/21 ,  H04R2430/23

Abstract: A microphone array includes an n microphone units (where n is an integer equal to or larger than three). A first one of the microphone units includes three microphones ((14-1 through 14-3)) arranged in line at equal intervals. An m-th microphone unit (where m is a positive integer expressed by 1

公开(公告)号：US09813810B1

公开(公告)日：2017-11-07

申请号：US14988047

申请日：2016-01-05

Applicant: Google Inc.

Inventor： Rajeev Conrad Nongpiur

IPC: H04R3/12 ,  H04R3/00 ,  H04R1/40 ,  G10L25/51 ,  G06N3/08

CPC classification number: H04R3/005 ,  G06N3/08 ,  G10L25/51 ,  H04R1/406 ,  H04R2201/405 ,  H04R2430/20

Abstract: A neural network is provided for recognition and enhancement of multi-channel sound signals received by multiple microphones, which need not be aligned in a linear array in a given environment. Directions and distances of sound sources may also be detected by the neural network without the need for a beamformer connected to the microphones. The neural network may be trained by knowledge gained from free-field array impulse responses obtained in an anechoic chamber, array impulse responses that model simulated environments of different reverberation times, and array impulse responses obtained in actual environments.

公开(公告)号：US09807497B2

公开(公告)日：2017-10-31

申请号：US14949988

申请日：2015-11-24

Applicant: HONDA MOTOR CO., LTD.

Inventor： Kazuhiro Nakadai

IPC: H04R1/40 ,  H04R5/027 ,  H04R29/00

CPC classification number: H04R1/406 ,  H04R5/027 ,  H04R29/005 ,  H04R2201/405 ,  H04R2499/15

Abstract: A sound source localization device, which has a plurality of sound pickup devices which record a sound signal and specifies a direction of a sound source based on sound signals recorded by at least two sound pickup devices of the sound pickup devices, includes a notification device that notifies information based on an arrangement of the sound pickup devices.

公开(公告)号：US09762188B2

公开(公告)日：2017-09-12

申请号：US14822950

申请日：2015-08-11

Applicant: Robert Bosch GmbH

Inventor： John Matthew Muza ,  Philip Sean Stetson

IPC: H04R3/00 ,  H03F3/187 ,  G10K11/178 ,  H04R1/40 ,  H04R19/00 ,  H03F3/45

CPC classification number: H03F3/187 ,  G10K11/178 ,  H03F3/45928 ,  H04R1/406 ,  H04R3/005 ,  H04R19/005 ,  H04R2201/003 ,  H04R2201/405

Abstract: Methods and system are described for cancelling interference in a microphone system. A positive bias voltage is applied to a first microphone diaphragm and a negative bias voltage is applied to a second microphone diaphragm. The diaphragms are configured to exhibit substantially the same mechanical deflection in response to acoustic pressures received by the microphone system. A differential output signal is produced by combining a positively-biased output signal from the first microphone diaphragm and a negatively-biased output signal from the second microphone diaphragm. This combining cancels common-mode interferences that are exhibited in both the positively-biased output signal and the negatively-biased output signal.

公开(公告)号：US09743204B1

公开(公告)日：2017-08-22

申请号：US15282554

申请日：2016-09-30

Applicant: Sonos, Inc.

Inventor： Brendan Welch ,  Romi Kadri ,  Jonathon Reilly

IPC: H04R29/00

CPC classification number: H04R29/005 ,  G01S3/8003 ,  G01S3/803 ,  H04R1/406 ,  H04R3/005 ,  H04R3/12 ,  H04R5/04 ,  H04R29/007 ,  H04R2201/401 ,  H04R2201/405 ,  H04R2205/024 ,  H04R2227/003 ,  H04R2227/005 ,  H04R2420/07 ,  H04R2430/20 ,  H04R2430/21 ,  H04R2499/11 ,  H04S7/301

Abstract: Aspects of a multi-orientation playback device including at least one microphone array are discussed. A method may include determining an orientation of the playback device which includes at least one microphone array and determining at least one microphone training response for the playback device from a plurality of microphone training responses based on the orientation of the playback device. The at least one microphone array can detect a sound input, and the location information of a source of the sound input can be determined based on the at least one microphone training response and the detected sound input. Based on the location information of the source, the directional focus of the at least one microphone array can be adjusted, and the sound input can be captured based on the adjusted directional focus.

公开(公告)号：US20170180851A1

公开(公告)日：2017-06-22

申请号：US15447176

申请日：2017-03-02

Applicant: INSIGHT ACOUSTIC LTD.

Inventor： Vladimir Sherman

IPC: H04R3/00 ,  G06F3/01 ,  H04R3/12

CPC classification number: H04R3/005 ,  G01S3/8006 ,  G02C11/06 ,  G02C11/10 ,  G06F3/013 ,  G06F3/165 ,  G10K11/16 ,  G10K11/341 ,  G10L2021/02166 ,  H04R1/028 ,  H04R1/1083 ,  H04R1/406 ,  H04R3/12 ,  H04R5/033 ,  H04R25/407 ,  H04R25/43 ,  H04R29/005 ,  H04R2201/405 ,  H04R2225/43 ,  H04R2410/01 ,  H04R2430/21 ,  H04R2499/15

Abstract: The present invention includes methods, circuits, devices, systems and associated computer executable code for acquiring, processing and rendering acoustic signals. According to some embodiments, one or more direction specific audio signals may be generated using a microphone array comprising two or more microphones and an audio stream generator. The audio stream generator may receive a direction parameter from an optical tracking system. There may be provided an audio rendering system adapted to normalize and/or balance acoustic signals acquired from a soundscape.

公开(公告)号：US20170164101A1

公开(公告)日：2017-06-08

申请号：US14959387

申请日：2015-12-04

Applicant: Sennheiser electronic GmbH & Co. KG

Inventor： J. Douglas Rollow, IV ,  Lance Reichert ,  Daniel Voss

IPC: H04R1/40 ,  H04R3/04 ,  H04R3/00

CPC classification number: H04R1/406 ,  H04R3/005 ,  H04R3/04 ,  H04R2201/401 ,  H04R2201/405 ,  H04R2430/23

Abstract: A conference system including a microphone array unit having a plurality of microphone capsules arranged in or on a board mountable on or in a ceiling of a conference room. The microphone array unit has a steerable beam and a maximum detection angle range. The conference system further includes a processing unit which is configured to receive the output signals of the microphone capsules and to steer the beam based on the received output signal of the microphone array unit. The processing unit is configured to control the microphone array to limit the detection angle range to exclude at least one predetermined exclusion sector in which a noise source is located.

公开(公告)号：US09641929B2

公开(公告)日：2017-05-02

申请号：US15049515

申请日：2016-02-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haiting Li ,  Deming Zhang

IPC: H04R3/00 ,  H04R1/40 ,  G10L21/02 ,  H04R1/02 ,  G10L21/0216 ,  G10L21/0208

CPC classification number: H04R1/406 ,  G10L21/02 ,  G10L21/0205 ,  G10L2021/02082 ,  G10L2021/02166 ,  H04R2201/025 ,  H04R2201/405 ,  H04R2430/21

Abstract: An audio signal processing method and apparatus and a differential beamforming method and apparatus to resolve a problem that an existing audio signal processing system cannot process audio signals in multiple application scenarios at the same time. The method includes determining a super-directional differential beamforming weighting coefficient, acquiring an audio input signal and determining a current application scenario and an audio output signal, acquiring, a weighting coefficient corresponding to the current application scenario, performing super-directional differential beamforming processing on the audio input signal using the acquired weighting coefficient in order to obtain a super-directional differential beamforming signal in the current application scenario, and performing processing on the formed signal to obtain a final audio signal required by the current application scenario. By using this method, a requirement that different application scenarios require different audio signal processing manners can be met.

公开(公告)号：US09609434B2

公开(公告)日：2017-03-28

申请号：US11748373

申请日：2007-05-14

Applicant: René Rodigast ,  Michael Strauss

Inventor： René Rodigast ,  Michael Strauss

IPC: H04R5/02 ,  H04R1/40 ,  H04R3/12 ,  H04R27/00 ,  H04S3/00

CPC classification number: H04R5/02 ,  H04R1/403 ,  H04R3/12 ,  H04R27/00 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2430/01 ,  H04S3/00 ,  H04S2420/13

Abstract: A driving device for a sound system by loudspeaker signals, wherein the sound system has a wave field synthesis loudspeaker array and one or several supply loudspeakers arranged separate from the wave field synthesis array includes an audio input for receiving at least one audio signal from at least one sound source, a position input for receiving information on a position of the sound source, a wave field synthesis unit for calculating loudspeaker signals for the loudspeakers of the wave field synthesis loudspeaker array, and a provider for providing the loudspeaker signal for the one or the several supply loudspeakers. The driving device enables a sound system by means of which sound localization becomes possible for the audience and at the same time pleasant levels can be achieved also in the first rows of the audience.

公开(公告)号：US09516396B2

公开(公告)日：2016-12-06

申请号：US14230593

申请日：2014-03-31

Applicant: Funktion One Research

Inventor： Anthony John Andrews ,  Toby Charles Collingwood Hunt ,  John Newsham

IPC: H04R25/00 ,  H04R1/02 ,  H04R1/00 ,  B60N2/54 ,  B60N2/50

CPC classification number: H04R1/025 ,  B60N2/502 ,  B60N2/505 ,  B60N2/544 ,  H04R1/00 ,  H04R1/026 ,  H04R2201/401 ,  H04R2201/405 ,  H04R2205/022

Abstract: A bracket for attachment to a first speaker and for suspending a second speaker therefrom. The bracket comprises a suspension member configured for attachment to a second speaker and defining an axis about which a second speaker is free to rotate when attached to the suspension member and an adjustable end stop configured to limit the maximum amount of rotation of a second speaker about the axis of rotation.

Abstract translation: 用于附接到第一扬声器并用于悬挂第二扬声器的支架。 所述支架包括悬挂构件，所述悬挂构件构造成用于附接到第二扬声器并且限定一个轴线，当附接到所述悬架构件时，第二扬声器围绕所述轴线自由旋转;以及可调节端部止动器，其被配置为限制第二扬声器的最大旋转量 旋转轴。