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1. 发明授权

US10332545B2 System and method for temporal and power based zone detection in speaker dependent microphone environments 有权
公开(公告)号：US10332545B2
公开(公告)日：2019-06-25
申请号：US15823874
申请日：2017-11-28
申请人： Nuance Communications, Inc.
发明人： Timo Matheja , Markus Buck , Simon Graf
IPC分类号： H04R1/40 , G10L15/22 , G10L25/21 , G10L25/78 , G10L25/84 , G10L21/0216
摘要： A method, computer program product, and computer system for receiving, by a computing device, a speech signal from a speaker via a plurality of microphone zones. A temporal cue based confidence may be determined for at least a portion of the plurality of microphone zones. A power cue based confidence may be determined for at least a portion of the plurality of microphone zones. A microphone zone of the plurality of microphone zones from which to use an output signal of the speaker may be identified based upon, at least in part, a combination of the temporal cue based confidence and the power cue based confidence.

2. 发明申请

US20190164568A1 SYSTEM AND METHOD FOR TEMPORAL AND POWER BASED ZONE DETECTION IN SPEAKER DEPENDENT MICROPHONE ENVIRONMENTS 审中-公开
公开(公告)号：US20190164568A1
公开(公告)日：2019-05-30
申请号：US15823874
申请日：2017-11-28
申请人： Nuance Communications, Inc.
发明人： Timo Matheja , Markus Buck , Simon Graf
IPC分类号： G10L25/84 , G10L25/21 , G10L15/22 , H04R1/40
CPC分类号： G10L25/84 , G10L15/22 , G10L25/21 , G10L25/78 , G10L2021/02165 , G10L2021/02166 , G10L2025/783 , G10L2025/786 , H04R1/406 , H04R2227/005
摘要： A method, computer program product, and computer system for receiving, by a computing device, a speech signal from a speaker via a plurality of microphone zones. A temporal cue based confidence may be determined for at least a portion of the plurality of microphone zones. A power cue based confidence may be determined for at least a portion of the plurality of microphone zones. A microphone zone of the plurality of microphone zones from which to use an output signal of the speaker may be identified based upon, at least in part, a combination of the temporal cue based confidence and the power cue based confidence.

3. 发明申请

US20170330580A1 SYSTEM AND METHOD FOR SPEECH ENHANCEMENT USING A COHERENT TO DIFFUSE SOUND RATIO 审中-公开
公开(公告)号：US20170330580A1
公开(公告)日：2017-11-16
申请号：US15535245
申请日：2014-12-12
申请人： NUANCE COMMUNICATIONS, INC.
发明人： Tobias Wolff , Timo Matheja , Markus Buck
IPC分类号： G10L21/0216 , H04B1/62
CPC分类号： G10L21/0216 , G10L21/0208 , G10L2021/02166 , H04B1/62 , H04R3/005 , H04R2430/21 , H04R2430/23 , H04R2430/25
摘要： Embodiments of the present disclosure may include a system and method for speech enhancement using the coherent to diffuse sound ratio. Embodiments may include receiving an audio signal at one or more microphones and controlling one or more adaptive filters of a beamformer using a coherent to diffuse ratio (“CDR”)

4. 发明申请

US20160261951A1 Methods And Apparatus For Selective Microphone Signal Combining 审中-公开
标题翻译：用于选择性麦克风信号组合的方法和装置
公开(公告)号：US20160261951A1
公开(公告)日：2016-09-08
申请号：US15029330
申请日：2013-10-30
申请人： NUANCE COMMUNICATIONS, INC
发明人： Timo Matheja , Markus Buck , Julien Premont
IPC分类号： H04R3/00 , G10L21/0232 , H04R1/32 , H04R3/12 , H03G3/30
CPC分类号： H04R3/005 , G10L21/0232 , H03G3/301 , H04R1/326 , H04R3/12 , H04R5/027 , H04R2499/13
摘要： Methods and apparatus for frequency selective signal mixing for speech enhancement. In one embodiment frequency-based channel selection is performed for signal magnitude, signal energy, and noise estimate using speaker activity detection information, signal-to-noise ratio, and/or signal level, Frequency-based channel selection is performed for a dynamic spectral floor to adjust the noise estimate using speaker dominance information. Noise reduction is performed on the signal for the selected channel.
摘要翻译：用于语音增强的频率选择信号混合的方法和装置。在一个实施例中，使用扬声器活动检测信息，信噪比和/或信号电平对信号幅度，信号能量和噪声估计执行基于频率的信道选择，对于动态频谱执行基于频率的信道选择使用扬声器优势信息来调整噪声估计。对所选频道的信号进行降噪。

5. 发明申请

US20150120305A1 SPEECH COMMUNICATION SYSTEM FOR COMBINED VOICE RECOGNITION, HANDS-FREE TELEPHONY AND IN-CAR COMMUNICATION 有权
标题翻译：用于组合语音识别的语音通信系统，无电话电话和车载通信
公开(公告)号：US20150120305A1
公开(公告)日：2015-04-30
申请号：US14398769
申请日：2012-05-16
申请人： NUANCE COMMUNICATIONS, INC.
发明人： Markus Buck , Tim Haulick , Timo Matheja
IPC分类号： G10L25/48
CPC分类号： G10L21/0205 , G10L15/00 , G10L15/32 , G10L21/0272 , G10L25/48 , G10L2021/02166 , H04M1/6075 , H04M3/568 , H04R3/005 , H04R3/12 , H04R27/00 , H04R2227/009 , H04R2499/13
摘要： A multi-mode speech communication system is described that has different operating modes for different speech applications. A speech service compartment contains multiple system users, multiple input microphones that develop microphone input signals from the system users to the system, and multiple output loudspeakers that develop loudspeaker output signals from the system to the system users. A signal processing module is in communication with the speech applications and includes an input processing module and an output processing module. The input processing module processes the microphone input signals to produce a set user input signals for each speech application that are limited to currently active system users for that speech application. The output processing module processes application output communications from the speech applications to produce loudspeaker output signals to the system users, wherein for each different speech application, the loudspeaker output signals are directed only to system users currently active in that speech application. The signal processing module dynamically controls the processing of the microphone input signals and the loudspeaker output signals to respond to changes in currently active system users for each application.
摘要翻译：描述了具有用于不同语音应用的不同操作模式的多模式语音通信系统。语音服务室包含多个系统用户，多个输入麦克风，从系统用户到系统开发麦克风输入信号，以及多个输出扬声器，从系统开发到系统用户的扬声器输出信号。信号处理模块与语音应用通信，并且包括输入处理模块和输出处理模块。输入处理模块处理麦克风输入信号以产生限于该语音应用的当前活动系统用户的每个语音应用的集合用户输入信号。输出处理模块处理来自语音应用的应用输出通信，以向系统用户产生扬声器输出信号，其中对于每个不同的语音应用，扬声器输出信号仅被引导到当前在该语音应用中有效的系统用户。信号处理模块动态地控制麦克风输入信号和扬声器输出信号的处理以响应每个应用的当前活动系统用户的变化。

6. 发明授权

US10242690B2 System and method for speech enhancement using a coherent to diffuse sound ratio 有权
公开(公告)号：US10242690B2
公开(公告)日：2019-03-26
申请号：US15535245
申请日：2014-12-12
申请人： NUANCE COMMUNICATIONS, INC.
发明人： Tobias Wolff , Timo Matheja , Markus Buck
IPC分类号： G10L21/0216 , G10L21/0208 , H04B1/62 , H04R3/00
摘要： Embodiments of the present disclosure may include a system and method for speech enhancement using the coherent to diffuse sound ratio. Embodiments may include receiving an audio signal at one or more microphones and controlling one or more adaptive filters of a beamformer using a coherent to diffuse ratio (“CDR”).

7. 发明申请

US20160232920A1 Methods and Apparatus for Robust Speaker Activity Detection 有权
标题翻译：强大的扬声器活动检测方法与装置
公开(公告)号：US20160232920A1
公开(公告)日：2016-08-11
申请号：US15024543
申请日：2013-09-27
申请人： NUANCE COMMUNICATIONS, INC.
发明人： Timo Matheja , Tobias Herbig , Markus Buck
IPC分类号： G10L25/21 , G10L21/0208 , G10L25/78 , H04R3/00
CPC分类号： G10L25/21 , G10L21/0208 , G10L25/78 , G10L2021/02087 , G10L2021/02166 , H04R3/005 , H04R2430/03 , H04R2499/13
摘要： Method and apparatus to determine a speaker activity detection measure from energy-based characteristics of signals from a plurality of speaker-dedicated microphones, detect acoustic events using power spectra for the microphone signals, and determine a robust speaker activity detection measure from the speaker activity measure and the detected acoustic events.
摘要翻译：用于基于来自多个扬声器专用麦克风的信号的基于能量的特性来确定扬声器活动检测措施的方法和装置，使用所述麦克风信号的功率谱检测声学事件，以及从所述扬声器活动度量确定鲁棒的扬声器活动检测措施和检测到的声学事件。

8. 发明申请

US20160050488A1 SYSTEM AND METHOD FOR IDENTIFYING SUBOPTIMAL MICROPHONE PERFORMANCE 有权
标题翻译：用于识别低级麦克风性能的系统和方法
公开(公告)号：US20160050488A1
公开(公告)日：2016-02-18
申请号：US14778643
申请日：2013-03-21
申请人： Timo MATHEJA , Markus BUCK , NUANCE COMMUNICATIONS, INC.
发明人： Timo Matheja , Markus Buck
IPC分类号： H04R3/00
CPC分类号： H04R3/00 , G06F3/165 , H04M1/03 , H04M1/6008 , H04R3/005 , H04R2430/03 , H04R2430/23 , H04R2499/11
摘要： Embodiments disclosed herein may include determining a signal parameter of a first microphone and a second microphone associated with a computing device. Embodiments may include generating a reference parameter based upon at least one of the parameter of the first microphone and the parameter of the second microphone. Embodiments may include adjusting a tolerance of at least one of the first microphone and the second microphone, based upon the reference parameter. Embodiments may include receiving, at the first microphone, a first speech signal, the first speech signal having a first speech signal magnitude and receiving, at the second microphone, a second speech signal, the second speech signal having a second speech signal magnitude. Embodiments may include comparing at least one of the first speech signal magnitude and the second speech signal magnitude with a third speech signal magnitude and detecting an obstructed microphone based upon the comparison.
摘要翻译：本文公开的实施例可以包括确定与计算设备相关联的第一麦克风和第二麦克风的信号参数。实施例可以包括基于第一麦克风的参数和第二麦克风的参数中的至少一个来生成参考参数。实施例可以包括基于参考参数调整第一麦克风和第二麦克风中的至少一个的容差。实施例可以包括在第一麦克风处接收第一语音信号，第一语音信号具有第一语音信号幅度，并且在第二麦克风处接收第二语音信号，第二语音信号具有第二语音信号幅度。实施例可以包括将第一语音信号幅度和第二语音信号幅度中的至少一个与第三语音信号幅度进行比较，并且基于该比较来检测阻塞的麦克风。

9. 发明授权

US11367437B2 Multi-microphone speech dialog system for multiple spatial zones 有权
公开(公告)号：US11367437B2
公开(公告)日：2022-06-21
申请号：US16426356
申请日：2019-05-30
申请人： NUANCE COMMUNICATIONS, INC.
发明人： Timo Matheja , Markus Buck , Andreas Kirbach , Martin Roessler , Tim Haulick , Julien Premont , Josef Anastasiadis , Rudi Vuerinckx , Christophe Ris , Stijn Verschaeren , Hakan Ari , Dieter Ranz
IPC分类号： G10L15/20 , G10L17/00 , G10L15/22 , H04R1/40 , G10L21/02
摘要： There is provided a speech dialog system that includes a first microphone, a second microphone, a processor and a memory. The first microphone captures first audio from a first spatial zone, and produces a first audio signal. The second microphone captures second audio from a second spatial zone, and produces a second audio signal. The processor receives the first audio signal and the second audio signal, and the memory contains instructions that control the processor to perform operations of a speech enhancement module, an automatic speech recognition module, and a speech dialog module that performs a zone-dedicated speech dialog.

10. 发明申请

US20200184994A1 SYSTEM AND METHOD FOR ACOUSTIC LOCALIZATION OF MULTIPLE SOURCES USING SPATIAL PRE-FILTERING 审中-公开
公开(公告)号：US20200184994A1
公开(公告)日：2020-06-11
申请号：US16213254
申请日：2018-12-07
申请人： Nuance Communications, Inc.
发明人： Tobias Wolff , Simon Graf , Timo Matheja
IPC分类号： G10L25/78 , G10L15/22 , G10L15/02 , G10L15/30
摘要： A method, computer program product, and computer system for identifying, by a computing device, a plurality of sources, wherein a first source of the plurality of sources is a source of interest and wherein a second source of the plurality of sources is an interference source. The first source and the second source may be monitored simultaneously by implementing a spatial pre-filter for acoustic source localization.

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