公开(公告)号：US20140226830A1

公开(公告)日：2014-08-14

申请号：US14179324

申请日：2014-02-12

Applicant: Sennheiser Communications A/S

Inventor： Svend FELDT

IPC: H04R25/00

CPC classification number: H04R25/305 ,  H04R25/30

Abstract: A hearing device comprises a receiver, an input buffer and a sample processor, the receiver being adapted to receive samples of a digital audio signal and feed received samples as a digital input signal to the input buffer, the sample processor being adapted to process the buffered samples to provide samples of a digital output signal such that the digital output signal is a sample-rate converted representation of the digital input signal with a predetermined target sample rate. The hearing device further comprises a latency controller adapted to estimate the quality of reception of the digital audio signal and to control the processing of the buffered samples in dependence on the estimated quality of reception.

Abstract translation: 听力装置包括接收器，输入缓冲器和样本处理器，接收器适于接收数字音频信号的采样，并将接收到的样本作为数字输入信号提供给输入缓冲器，样本处理器适于处理缓冲的 样本以提供数字输出信号的采样，使得数字输出信号是具有预定目标采样率的数字输入信号的采样率转换表示。 听力设备还包括等待时间控制器，其适于估计数字音频信号的接收质量，并根据估计的接收质量来控制缓冲样本的处理。

公开(公告)号：US20140161296A1

公开(公告)日：2014-06-12

申请号：US14103368

申请日：2013-12-11

Applicant: SENNHEISER COMMUNICATIONS A/S

Inventor： Esge Brandt ANDERSEN ,  Claus BENJAMINSEN ,  Svend FELDT ,  Christian WANG ,  Torben CHRISTIANSEN ,  Brian BRORSBØL

IPC: H04R1/02

CPC classification number: H04R1/02 ,  H04R1/08 ,  H04R1/083 ,  H04R1/1041 ,  H04R1/406

Abstract: A microphone boom is provided with extendable microphone arrays, and a headset having such a microphone boom. The headset comprise a casing accommodating the signal transmission circuitry and further comprises a speaker adapted to serve a sound signal at the proximity of a users ear and the speaker is protruding from the casing at a speaker-end of the casing and one microphone array is fixated relative to the casing distally with respect to the speaker-end.

Abstract translation: 麦克风臂具有可伸缩的麦克风阵列，以及具有这种麦克风的头戴式耳机。 耳机包括容纳信号传输电路的壳体，并且还包括适于在用户耳朵附近服务声音信号的扬声器，并且扬声器在壳体的扬声器端处从壳体突出并且一个麦克风阵列被固定 相对于外壳相对于扬声器端向远侧。

公开(公告)号：US20180091882A1

公开(公告)日：2018-03-29

申请号：US15712512

申请日：2017-09-22

Applicant: Sennheiser Communications A/S

Inventor： Torben CHRISTIANSEN ,  Svend FELDT ,  Kim LARSEN

IPC: H04R1/08 ,  H04R3/00 ,  H04R1/40

CPC classification number: H04R1/083 ,  H04R1/1008 ,  H04R1/1041 ,  H04R1/1083 ,  H04R1/406 ,  H04R3/005 ,  H04R2201/107 ,  H04R2201/403

Abstract: The disclosure relates to a microphone arrangement comprising at least three groups of microphones that are mounted on a head-wearable support structure. The at least three groups of microphones comprising a first group of microphones with one or more microphones, a second group of microphones with one or more microphones, and a third group of microphones with one or more microphones, wherein the first group is mounted to a casing that accommodates signal transmission circuitry, the second group is mounted to slide with respect to the casing and the first group is mounted in a direction of a first axis. Furthermore, the third group comprises either at least one microphone that is arranged on the support structure so as to exhibit less sensitivity for sound coming from a user's mouth than for sound coming from a user's environment when the microphone arrangement is head-worn; or at least two microphones that are arranged symmetrically with respect to a user's head when the microphone arrangement is head-worn and that provide for a directionality that is orientated to the direction of a user's vision; or both.

公开(公告)号：US20180027125A1

公开(公告)日：2018-01-25

申请号：US15655295

申请日：2017-07-20

Applicant: Sennheiser Communications A/S

Inventor： Stig PETRI ,  Svend FELDT

IPC: H04M9/08 ,  G06F17/14 ,  H03H21/00

CPC classification number: H04M9/082 ,  G06F17/142 ,  G10L21/0208 ,  G10L21/0232 ,  G10L2021/02082 ,  H03H21/0027 ,  H04B3/23 ,  H04R1/1091 ,  H04R3/02 ,  H04R25/453

Abstract: The invention relates to an adaptive filter unit, in particular for being used as an echo canceller, comprising a first filter input, configured to receive a first electric audio signal, indicative of a first audio signal A(t), a second filter input, configured to receive a second electric audio signal, indicative of a second audio signal B(t), a processor and a filter output. The processor is configured to calculate and provide audio estimation data X(fn, A(t1, . . . , tM(fn))) in the frequency domain; to calculate a transformed second audio signal Y(fn, B(t)), formed by a transformation of the second audio signal B(t) into the frequency domain; and to calculate a filtered audio signal by subtracting delayed audio estimation data from the transformed second audio signal, wherein the delayed audio estimation data is provided by a memory unit of the adaptive filter unit, which is arranged to provide a data exchange with the processor, and wherein the delayed audio estimation data comprises a frequency dependent time delay compared to the transformed second audio signal.

公开(公告)号：US20190075399A1

公开(公告)日：2019-03-07

申请号：US16122084

申请日：2018-09-05

Applicant: Sennheiser Communications A/S

Inventor： Lars Elliot NYEGAARD ,  Svend FELDT ,  Andreas JESSEN

IPC: H04R5/033 ,  H04S1/00 ,  H04R3/12 ,  H04S7/00 ,  H04R5/04

Abstract: The present invention relates to a communication system for communication of a plurality of stereo audio signals between a plurality of communication devices, wherein the plurality of communication devices comprises a first communication device, a second communication device and at least a third communication device. Each communication device of the plurality of communication devices may comprise a signal processing unit, an audio interface configured to receive a local voice signal of a user of the communication device, a binaural rendering unit configured to render the local voice signal into a stereo local voice signal based on a first spatial information, an input communication interface configured to receive a first stereo audio signal and a second stereo audio signal of the plurality of stereo audio signals transmitted by the second communication device and the third communication device, respectively. The first stereo audio signal may comprise a second voice signal of a second user of the second communication device, and the second voice signal may include a second spatial information, and wherein the second stereo audio signal may comprise a third voice signal of a third user of the third communication device, and where the third voice signal may include a third spatial information. Furthermore, the communication device may comprise an output communication interface configured to transmit a third stereo audio signal of the plurality of stereo audio signals comprising the local voice signal provided with the first spatial information to the second communication device and the third communication device. The first stereo audio signal and the second stereo audio signal may be transmitted to the audio interface, and the user of the communication device experiences a virtual sound environment, wherein the second voice signal and the third voice signal is positioned in the virtual sound environment based on the second spatial information and the third spatial information, respectively.

公开(公告)号：US20140219474A1

公开(公告)日：2014-08-07

申请号：US14174562

申请日：2014-02-06

Applicant: Oticon A/S ,  Sennheiser Communications A/S

Inventor： Svend FELDT ,  Thomas KAULBERG ,  Torben CHRISTIANSEN ,  Claus BENJAMINSEN

IPC: H03G3/00

CPC classification number: H03G3/00 ,  H03F1/327 ,  H03G7/002 ,  H04R3/005 ,  H04R3/04 ,  H04R27/00 ,  H04R2410/07

Abstract: An audio processing device comprises a multitude of electric input signals, each electric input signal being provided in a digitized form, and a control unit receiving said digitized electric input signals and providing a resulting enhanced signal. The control unit is configured to determine the resulting enhanced signal from said digitized electric input signals, or signals derived therefrom, according to a predefined scheme.

Abstract translation: 音频处理装置包括多个电输入信号，每个电输入信号以数字形式提供，以及控制单元接收所述数字化电输入信号并提供所产生的增强信号。 控制单元被配置为根据预定义的方案从所述数字化电输入信号或从其导出的信号确定所得到的增强信号。

公开(公告)号：US20190222699A1

公开(公告)日：2019-07-18

申请号：US16362156

申请日：2019-03-22

Applicant: Sennheiser Communications A/S

Inventor： Stig PETRI ,  Svend FELDT

IPC: H04M9/08 ,  G10L21/0232 ,  H04R3/02 ,  G10L21/0208 ,  G06F17/14 ,  H04B3/23 ,  H03H21/00

CPC classification number: H04M9/082 ,  G06F17/142 ,  G10L21/0208 ,  G10L21/0232 ,  G10L2021/02082 ,  H03H21/0027 ,  H04B3/23 ,  H04R1/1091 ,  H04R3/02 ,  H04R25/453

Abstract: The invention relates to an adaptive filter unit, in particular for being used as an echo canceller, comprising a first filter input, configured to receive a first electric audio signal, indicative of a first audio signal A(t), a second filter input, configured to receive a second electric audio signal, indicative of a second audio signal B(t), a processor and a filter output. The processor is configured to calculate and provide audio estimation data X(fn, A(t1, . . . , tM(fn))) in the frequency domain; to calculate a transformed second audio signal Y(fn, B(t)), formed by a transformation of the second audio signal B(t) into the frequency domain; and to calculate a filtered audio signal by subtracting delayed audio estimation data from the transformed second audio signal, wherein the delayed audio estimation data is provided by a memory unit of the adaptive filter unit, which is arranged to provide a data exchange with the processor, and wherein the delayed audio estimation data comprises a frequency dependent time delay compared to the transformed second audio signal.

公开(公告)号：US20180255119A1

公开(公告)日：2018-09-06

申请号：US15908332

申请日：2018-02-28

Applicant: Sennheiser Communications A/S

Inventor： Torben CHRISTIANSEN ,  Svend FELDT ,  Bjarne KLEMMENSEN

IPC: H04L29/06 ,  H04N21/439

CPC classification number: H04L65/608 ,  H04L12/66 ,  H04L47/2416 ,  H04L63/0428 ,  H04L63/0442 ,  H04L63/064 ,  H04L65/403 ,  H04N21/439 ,  H04W12/003 ,  H04W84/20 ,  H04W88/16

Abstract: The disclosure presents a method and a communication system comprising; an audio gateway including; a first wireless interface configured to transmit and receive an audio signal via a first communication link, a processing unit configured to transfer the audio signal into an audio streaming signal, a second wireless interface configured to transmit the audio streaming signal via a second communication link, a plurality of communication units comprising a master communication unit and at least a first slave communication unit, wherein each of the communication unit comprises: a first wireless interface configured to receive the audio streaming signal via the second communication link and to communicate with a communication unit, a speaker configured to sound the audio streaming signal received from the audio gateway, a memory unit, and wherein the master communication unit is configured to transmit a pairing request via the second communication link to the audio gateway, and the audio gateway transmits then an encryption key to the master communication unit, and the first slave communication unit is configured to request the encryption key by transmitting an encryption request including an identification of the first slave communication unit to the master communication unit via a first internal communication link, and the master communication unit transmits then the encryption key relating to the second communication link to the first slave communication unit based on an access criteria, and the first slave communication unit is then configured to eavesdrop the audio streaming signal being communicated via the second communication link between the audio gateway and the master communication unit.

公开(公告)号：US20150304749A1

公开(公告)日：2015-10-22

申请号：US14788308

申请日：2015-06-30

Applicant: SENNHEISER COMMUNICATIONS A/S

Inventor： Esge Brandt ANDERSEN ,  Claus BENJAMINSEN ,  Svend FELDT ,  Christian WANG ,  Torben CHRISTIANSEN ,  Brian BRORSBØL

IPC: H04R1/02 ,  H04R1/08

CPC classification number: H04R1/02 ,  H04R1/08 ,  H04R1/083 ,  H04R1/1041 ,  H04R1/406

Abstract: A microphone boom is provided with an extendable microphone assembly, and a headset having such a microphone boom. The headset includes a casing accommodating the signal transmission circuitry and further includes a speaker adapted to serve a sound signal at the proximity of a user's ear and the speaker is protruding from the casing at a speaker-end of the casing and a microphone assembly is fixated relative to the casing distally with respect to the speaker-end.

Abstract translation: 麦克风吊杆设置有可延伸的麦克风组件和具有这种麦克风吊杆的耳机。 耳机包括容纳信号传输电路的壳体，并且还包括适于在用户耳朵附近服务声音信号的扬声器，并且扬声器在壳体的扬声器端处从壳体突出并且固定麦克风组件 相对于外壳相对于扬声器端向远侧。

公开(公告)号：US20150011266A1

公开(公告)日：2015-01-08

申请号：US14323577

申请日：2014-07-03

Applicant: Sennheiser Communications A/S

Inventor： Svend FELDT ,  Adam DYRBY ,  Stig PETRI

IPC: H04M9/08

CPC classification number: H04M9/082 ,  H04B3/21 ,  H04M9/087

Abstract: The application relates to a communication device, e.g. a speakerphone, comprising a microphone signal path, MSP, and a loudspeaker signal path, SSP, the microphone signal path comprising a microphone unit, an MSP-filter, and a transmitter unit operationally connected to each other and configured to transmit a processed signal originating from an input sound picked up by the microphone, the loudspeaker signal path comprising a receiver unit, an SSP-filter, and a loudspeaker unit operationally connected to each other and configured to provide an acoustic sound signal originating from a signal received by the receiver unit. The communication device comprises a control unit for dynamically controlling the filtering characteristics of the MSP and SSP-filters based on one or more control input signals. This has the advantage of providing a simple and flexible scheme for decreasing echo in a communication device, while ensuring an acceptable sound quality in the transmitted signal.

Abstract translation: 该应用涉及通信设备，例如， 扬声器电话，包括麦克风信号路径MSP和扬声器信号路径SSP，所述麦克风信号路径包括麦克风单元，MSP滤波器和发射机单元，所述麦克风单元，MSP滤波器和发射机单元可操作地彼此连接并且被配置为发送经处理的信号 从麦克风拾取的输入声音，扬声器信号路径包括接收器单元，SSP滤波器和扬声器单元，其可操作地彼此连接并且被配置为提供源自由接收器单元接收的信号的声音信号 。 通信设备包括用于基于一个或多个控制输入信号动态地控制MSP和SSP滤波器的滤波特性的控制单元。 这具有提供用于减少通信设备中的回波的简单且灵活的方案，同时确保发送信号中可接受的声音质量。