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1. 发明申请

US20190139567A1 Voice Activity Detection Feature Based on Modulation-Phase Differences 审中-公开
公开(公告)号：US20190139567A1
公开(公告)日：2019-05-09
申请号：US16095265
申请日：2017-02-17
申请人： Nuance Communications, Inc.
发明人： Simon Graf , Tobias Herbig , Markus Buck
IPC分类号： G10L25/93 , G10L25/18 , G10L25/84
摘要： Speech processing methods may rely on voice activity detection (VAD) that separates speech from noise. Example embodiments of a computationally low complex VAD feature that is robust against various types of noise is introduced. By considering an alternating excitation structure of low and high frequencies, speech is detected with a high confidence. The computationally low complex VAD feature can cope even with the limited spectral resolution that may be typical for a communication system, such as an in-car-communication (ICC) system. Simulation results confirm the robustness of the computationally low complex VAD feature and show an increase in performance relative to established VAD features.

2. 发明授权

US09549250B2 Wind noise detection for in-car communication systems with multiple acoustic zones 有权
标题翻译：具有多个声学区域的车载通信系统的风噪声检测
公开(公告)号：US09549250B2
公开(公告)日：2017-01-17
申请号：US14406629
申请日：2013-02-26
申请人： NUANCE COMMUNICATIONS, INC.
发明人： Tobias Herbig , Markus Buck , Meik Pfeffinger
IPC分类号： G01L21/00 , H04R3/00 , G10L21/0208
CPC分类号： H04R3/002 , G10L21/0208 , H04R3/005 , H04R2499/13
摘要： An in-car communication (ICC) system has multiple acoustic zones having varying acoustic environments. At least one input microphone within at least one acoustic zone develops a corresponding microphone signal from one or more system users. At least one loudspeaker within at least one acoustic zone provides acoustic audio to the system users. A wind noise module makes a determination of when wind noise is present in the microphone signal and modifies the microphone signal based on the determination.
摘要翻译：车载通信（ICC）系统具有多个具有不同声学环境的声学区域。在至少一个声学区域内的至少一个输入麦克风产生来自一个或多个系统用户的相应麦克风信号。至少一个声学区域内的至少一个扬声器向系统用户提供声音。风噪声模块确定麦克风信号中何时出现风噪声，并根据确定修改麦克风信号。

3. 发明申请

US20170011753A1 Methods And Apparatus For Adaptive Gain Control In A Communication System 审中-公开
标题翻译：一种通信系统中自适应增益控制的方法和装置
公开(公告)号：US20170011753A1
公开(公告)日：2017-01-12
申请号：US15115804
申请日：2014-02-27
申请人： NUANCE COMMUNICATIONS, INC.
发明人： Tobias Herbig , Meik Pfeffinger , Bernd Iser
IPC分类号： G10L21/034 , H04R3/12 , G10L21/0232 , H04R3/00 , H03G3/32 , G10L25/81
CPC分类号： G10L21/034 , G10L21/02 , G10L21/0208 , G10L21/0232 , G10L21/0324 , G10L25/78 , G10L25/81 , H03G3/3089 , H03G3/32 , H04R3/00 , H04R3/005 , H04R3/12 , H04R27/00 , H04R2430/01 , H04R2499/13
摘要： Methods and apparatus for a communication system having microphones and loudspeakers to determine a noise and speech level estimate for a transformed signal, determine a SNR from the noise and speech level estimates, and determine a gain for the transformed signal to achieve a selected SNR range at a given position. In one embodiment, the gain is determined by adapting an actual gain to follow a target gain, wherein the target gain is adjusted to achieve the selected SNR range.
摘要翻译：具有麦克风和扬声器的通信系统的方法和装置，用于确定经变换的信号的噪声和语音电平估计，根据噪声和语音电平估计确定SNR，并确定变换信号的增益以实现所选择的SNR范围给定的位置在一个实施例中，通过调整实际增益来跟随目标增益来确定增益，其中调整目标增益以实现所选择的SNR范围。

4. 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。

5. 发明申请

US20170251304A1 Communication System For Multiple Acoustic Zones 审中-公开
公开(公告)号：US20170251304A1
公开(公告)日：2017-08-31
申请号：US15583189
申请日：2017-05-01
申请人： NUANCE COMMUNICATIONS, INC.
发明人： Tobias Herbig , Markus Buck , Meik Pfeffinger
IPC分类号： H04R3/12 , H04R27/00 , G10L21/0208 , H04R3/02 , H04R3/00 , G10L25/84 , H04R1/40
CPC分类号： H04R3/12 , G10L21/0208 , G10L25/84 , G10L2021/02082 , H04M9/082 , H04R1/406 , H04R3/005 , H04R3/02 , H04R5/02 , H04R27/00 , H04R2201/403 , H04R2227/001 , H04R2227/009 , H04R2410/05 , H04R2420/01 , H04R2499/13
摘要： An communication system supports communication paths within an environment by receiving speech signals of a speaker and playing it back for one or more listeners. Signal processing tasks are split into a microphone related part and into a loudspeaker related part. A sound processing system suitable for use in an environment having multiple acoustic zones includes a plurality of microphone communication instances coupled and a plurality of loudspeaker instances.

6. 发明授权

US09502050B2 Noise dependent signal processing for in-car communication systems with multiple acoustic zones 有权
标题翻译：具有多个声学区域的车载通信系统的噪声相关信号处理
公开(公告)号：US09502050B2
公开(公告)日：2016-11-22
申请号：US14406628
申请日：2012-12-26
申请人： NUANCE COMMUNICATIONS, INC.
发明人： Markus Buck , Tobias Herbig , Meik Pfeffinger
IPC分类号： G10L21/00 , G10L25/48 , G10L21/02 , H04R1/00 , H04R3/00 , G10L21/0364 , G10L21/0216 , H04S7/00
CPC分类号： G10L25/48 , G10L21/02 , G10L2021/02166 , G10L2021/03646 , H04R1/00 , H04R3/005 , H04R2499/13 , H04R2499/15 , H04S7/302
摘要： A speech communication system includes a speech service compartment for holding one or more system users. The speech service compartment includes a plurality of acoustic zones having varying acoustic environments. At least one input microphone is located within the speech service compartment, for developing microphone input signals from the one or more system users. At least one loudspeaker is located within the service compartment. An in-car communication (ICC) system receives and processes the microphone input signals, forming loudspeaker output signals that are provided to one or more of the at least one output loudspeakers. The ICC system includes at least one of a speaker dedicated signal processing module and a listener specific signal processing module, that controls the processing of the microphone input signal and/or forming of the loudspeaker output signal based, at least in part, on at least one of an associated acoustic environment(s) and resulting psychoacoustic effect(s).
摘要翻译：语音通信系统包括用于保持一个或多个系统用户的语音服务隔间。语音服务室包括具有不同声学环境的多个声学区域。至少一个输入麦克风位于语音服务隔间内，用于开发来自一个或多个系统用户的麦克风输入信号。服务舱内至少有一个扬声器。车载通信（ICC）系统接收和处理麦克风输入信号，形成提供给至少一个输出扬声器中的一个或多个的扬声器输出信号。 ICC系统至少部分地包括扬声器专用信号处理模块和收听者特定信号处理模块中的至少一个，其至少部分地基于至少一个来控制麦克风输入信号的处理和/或形成扬声器输出信号相关的声学环境之一和所产生的心理声学效应。

7. 发明申请

US20190311715A1 TECHNIQUES FOR WAKE-UP WORD RECOGNITION AND RELATED SYSTEMS AND METHODS 审中-公开
公开(公告)号：US20190311715A1
公开(公告)日：2019-10-10
申请号：US16308849
申请日：2016-06-15
申请人： Nuance Communications, Inc.
发明人： Meik Pfeffinger , Timo Matheja , Tobias Herbig , Tim Haulick
IPC分类号： G10L15/22 , G10L15/08 , G10L17/22 , G06F3/16
摘要： A system for detection of at least one designated wake-up word for at least one speech-enabled application. The system comprises at least one microphone; and at least one computer hardware processor configured to perform: receiving an acoustic signal generated by the at least one microphone at least in part as a result of receiving an utterance spoken by a speaker; obtaining information indicative of the speaker's identity; interpreting the acoustic signal at least in part by determining, using the information indicative of the speaker's identity and automated speech recognition, whether the utterance spoken by the speaker includes the at least one designated wake-up word; and interacting with the speaker based, at least in part, on results of the interpreting.

8. 发明授权

US10229686B2 Methods and apparatus for speech segmentation using multiple metadata 有权
公开(公告)号：US10229686B2
公开(公告)日：2019-03-12
申请号：US15329354
申请日：2014-08-18
申请人： NUANCE COMMUNICATIONS, INC.
发明人： Markus Buck , Tobias Herbig , Simon Graf , Christophe Ris
IPC分类号： G10L15/28 , G10L15/22 , G10L25/78 , G10L15/04 , G10L15/20 , G10L21/02
摘要： Methods and apparatus to process microphone signals by a speech enhancement module to generate an audio stream signal including first and second metadata for use by a speech recognition module. In an embodiment, speech recognition is performed using endpointing information including transitioning from a silence state to a maybe speech state, in which data is buffered, based on the first metadata and transitioning to a speech state, in which speech recognition is performed, based upon the second metadata.

9. 发明申请

US20150127351A1 Noise Dependent Signal Processing For In-Car Communication Systems With Multiple Acoustic Zones 有权
标题翻译：用于具有多个声学区域的车载通信系统的噪声相关信号处理
公开(公告)号：US20150127351A1
公开(公告)日：2015-05-07
申请号：US14406628
申请日：2012-12-26
申请人： NUANCE COMMUNICATIONS, INC.
发明人： Markus Buck , Tobias Herbig , Meik Pfeffinger
IPC分类号： G10L25/48 , H04R1/00
CPC分类号： G10L25/48 , G10L21/02 , G10L2021/02166 , G10L2021/03646 , H04R1/00 , H04R3/005 , H04R2499/13 , H04R2499/15 , H04S7/302
摘要： A speech communication system includes a speech service compartment for holding one or more system users. The speech service compartment includes a plurality of acoustic zones having varying acoustic environments. At least one input microphone is located within the speech service compartment, for developing microphone input signals from the one or more system users. At least one loudspeaker is located within the service compartment. An in-car communication (ICC) system receives and processes the microphone input signals, forming loudspeaker output signals that are provided to one or more of the at least one output loudspeakers. The ICC system includes at least one of a speaker dedicated signal processing module and a listener specific signal processing module, that controls the processing of the microphone input signal and/or forming of the loudspeaker output signal based, at least in part, on at least one of an associated acoustic environment(s) and resulting psychoacoustic effect(s).
摘要翻译：语音通信系统包括用于保持一个或多个系统用户的语音服务隔间。语音服务室包括具有不同声学环境的多个声学区域。至少一个输入麦克风位于语音服务隔间内，用于开发来自一个或多个系统用户的麦克风输入信号。服务舱内至少有一个扬声器。车载通信（ICC）系统接收和处理麦克风输入信号，形成提供给至少一个输出扬声器中的一个或多个的扬声器输出信号。 ICC系统至少部分地包括扬声器专用信号处理模块和收听者特定信号处理模块中的至少一个，其至少部分地基于至少一个来控制麦克风输入信号的处理和/或形成扬声器输出信号相关的声学环境之一和所产生的心理声学效应。

10. 发明申请

US20190156855A1 Enhanced De-Esser For In-Car Communication Systems 审中-公开
公开(公告)号：US20190156855A1
公开(公告)日：2019-05-23
申请号：US16099941
申请日：2016-09-01
申请人： Nuance Communications, Inc.
发明人： Tobias Herbig , Stefan Richardt
IPC分类号： G10L21/0364 , G10L25/18
摘要： Methods and systems for deessing of speech signals are described. A deesser of a speech processing system includes an analyzer configured to receive a full spectral envelope for each time frame of a speech signal presented to the speech processing system, and to analyze the full spectral envelope to identify frequency content for deessing. The deesser also includes a compressor configured to receive results from the analyzer and to spectrally weight the speech signal as a function of results of the analyzer. The analyzer can be configured to calculate a psychoacoustic measure from the full spectral envelope, and may be further configured to detect sibilant sounds of the speech signal using the psychoacoustic measure. The psychoacoustic measure can include, for example, a measure of sharpness, and the analyzer may be further configured to calculate deesser weights based on the measure of sharpness. An example application includes in-car communications.

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