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1. 发明申请

US20190130926A1 EAR-WORN ELECTRONIC DEVICE INCORPORATING ANNOYANCE MODEL DRIVEN SELECTIVE ACTIVE NOISE CONTROL 审中-公开
公开(公告)号：US20190130926A1
公开(公告)日：2019-05-02
申请号：US16173767
申请日：2018-10-29
申请人： Starkey Laboratories, Inc.
发明人： Ritwik Giri , Karim Helwani , Tao Zhang
IPC分类号： G10L21/0216 , H04R3/00 , G10L17/02 , H04R5/04 , H04R5/033
CPC分类号： G10L21/0216 , G10L17/02 , G10L21/0208 , G10L2021/02087 , G10L2021/02163 , H04R1/1083 , H04R3/002 , H04R5/033 , H04R5/04 , H04R25/505 , H04R2460/01
摘要： A system comprises an ear-worn electronic device configured to be worn by a wearer. The ear-worn electronic device comprises a processor and memory coupled to the processor. The memory is configured to store an annoying sound dictionary representative of a plurality of annoying sounds pre-identified by the wearer. A microphone is coupled to the processor and configured to monitor an acoustic environment of the wearer. A speaker or a receiver is coupled to the processor. The processor is configured to identify different background noises present in the acoustic environment, determine which of the background noises correspond to one or more of the plurality of annoying sounds, and attenuate the one or more annoying sounds in an output signal provided to the speaker or receiver.

2. 发明授权

US09947336B2 Acoustic echo mitigation apparatus and method, audio processing apparatus and voice communication terminal 有权
公开(公告)号：US09947336B2
公开(公告)日：2018-04-17
申请号：US14775038
申请日：2014-03-10
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Dong Shi , Xuejing Sun , Glenn N. Dickins
IPC分类号： G10L21/00 , G10L21/0232 , H04M9/08 , G10L21/0208 , G10L25/21 , G10L25/60 , G10L21/0216
CPC分类号： G10L21/0232 , G10L21/0208 , G10L25/21 , G10L25/60 , G10L2021/02082 , G10L2021/02163 , H04M9/082
摘要： The present application provides an acoustic echo mitigation apparatus and method, an audio processing apparatus and a voice communication terminal. According to an embodiment, an acoustic echo mitigation apparatus is provided, including: an acoustic echo canceller for cancelling estimated acoustic echo from a microphone signal and outputting an error signal; a residual echo estimator for estimating residual echo power; and an acoustic echo suppressor for further suppressing residual echo and noise in the error signal based on the residual echo power and noise power. Here, the residual echo estimator is configured to be continuously adaptive to power change in the error signal. According to the embodiments of the present application, the acoustic echo mitigation apparatus and method can, at least, be well adaptive to the change of power of the error signal after the AEC processing, such as that caused by change of double-talk status, echo path properties, noise level and etc.

3. 发明申请

US20180075833A1 AUDIO SIGNAL PROCESSING APPARATUS, AUDIO SIGNAL PROCESSING METHOD, AND AUDIO SIGNAL PROCESSING PROGRAM 审中-公开
公开(公告)号：US20180075833A1
公开(公告)日：2018-03-15
申请号：US15814875
申请日：2017-11-16
申请人： JVC KENWOOD Corporation
发明人： Masato SUGANO
IPC分类号： G10K11/175 , G10L21/0208 , G10L21/0232
CPC分类号： G10K11/175 , G10L21/0208 , G10L21/0232 , G10L2021/02163
摘要： A frequency domain converter divides an input signal for each predetermined frame, and generates a first signal X(f, τ) for each first frequency division unit. A noise estimation signal generator generates a signal Y(f, τ) for each second frequency division unit wider than the first frequency division unit. A signal comparator calculates a representative value for each second frequency division unit based on the signal Y(f, τ) stored in a storage unit, and compares the representative value and the signal Y(f, τ) with each other for each second frequency division unit. A mask generator generates a mask M(f, τ), which determines a degree of suppression or emphasis for each first frequency division unit, based on a peak range of the signal X(f, τ), and a comparison result by the signal comparator. The mask application unit multiplies the signal X(f, τ) by the mask M(f, τ).

4. 发明授权

US09812146B1 Synchronization of inbound and outbound audio in a heterogeneous echo cancellation system 有权
公开(公告)号：US09812146B1
公开(公告)日：2017-11-07
申请号：US15044495
申请日：2016-02-16
申请人： Amazon Technologies, Inc.
发明人： Pushkaraksha Gejji , Arvind Mandhani
IPC分类号： H04B3/20 , G10L21/02 , G10L21/0208 , G10L15/22 , G10L21/0216 , H04B3/23 , H04M9/08
CPC分类号： G10L21/0205 , G10L21/0208 , G10L2015/223 , G10L2021/02082 , G10L2021/02163 , H04B3/23 , H04M9/082
摘要： An echo cancellation system that synchronizes output audio data with input audio data in a heterogeneous system. The system may increment a counter as outgoing audio frames are sent to a digital-to-analog converter in a speaker. As incoming audio frames are received by an analog-to-digital converter in a microphone, the system may copy contents of the counter into the incoming audio frames. Based on the contents of the counter, the incoming audio frames may be associated with corresponding outgoing audio frames. After synchronizing the incoming audio frames and the outgoing audio frames, the system may perform Acoustic Echo Cancellation by removing the outgoing audio frames from the incoming audio frames.

5. 发明授权

US09696444B2 Dynamic threshold systems, computer readable medium, and program code for filtering noise and restoring attenuated high-frequency components of acoustic signals 有权
公开(公告)号：US09696444B2
公开(公告)日：2017-07-04
申请号：US14485613
申请日：2014-09-12
申请人： Saudi Arabian Oil Company
发明人： Yunlai Yang
IPC分类号： G01V1/00 , G01V1/36 , G01N29/11 , G10L21/0208 , G01N29/32 , G01V1/40 , G10L21/0216 , G10L21/0232
CPC分类号： G01V1/364 , G01N29/11 , G01N29/32 , G01V1/40 , G01V2210/324 , G01V2210/40 , G10L21/0208 , G10L21/0232 , G10L2021/02163
摘要： Systems, computer readable media, and program code to provide for filtering noise and/or restoring attenuated spectral components in acoustic signals, are provided. An exemplary embodiment of a system is configured for dynamically filtering each of a plurality of raw FFT data samples of a record to remove or attenuate background noise contained therein to thereby produce a corresponding plurality of cleaned FFT data samples. The sample-specific background noise is removed or attenuated by a record-specific dynamic filter to produce the corresponding cleaned FFT data samples. The system can also perform the operations of restoring the attenuated high-frequency components of the cleaned data samples through application of a record-specific Restoring Processor at least partially defined by a portion of the cleaned data samples and a Gain Function to thereby produce cleaned and restored data samples, and applying an inverse transformation to convert the cleaned and restored data samples into cleaned and restored data samples in time domain data.

6. 发明授权

US09601130B2 Method for processing speech signals using an ensemble of speech enhancement procedures 有权
公开(公告)号：US09601130B2
公开(公告)日：2017-03-21
申请号：US13945469
申请日：2013-07-18
申请人： Mitsubishi Electric Research Laboratories, Inc.
发明人： Jonathan Le Roux , Shinji Watanabe , John R Hershey
IPC分类号： G10L21/0232 , G10L15/06 , G10L21/0208 , G10L21/02 , G10L21/0272 , G10L21/0216 , G10L25/78
CPC分类号： G10L21/0232 , G10L15/063 , G10L21/02 , G10L21/0208 , G10L21/0272 , G10L25/78 , G10L2021/02163
摘要： A method processes an acoustic signal that is a mixture of a target signal and interfering signals by first enhancing the acoustic signal by a set of enhancement procedures to produce a set of initial enhanced signals. Then, an ensemble learning procedure is applied to the acoustic signal and the set of initial enhancement signals to produce features of the acoustic signal.

7. 发明授权

US09443531B2 Single MIC detection in beamformer and noise canceller for speech enhancement 有权
标题翻译：用于语音增强的波束形成器和噪声消除器中的单个MIC检测
公开(公告)号：US09443531B2
公开(公告)日：2016-09-13
申请号：US14702686
申请日：2015-05-02
申请人： Yang Gao
发明人： Yang Gao
IPC分类号： G10L21/00 , G10L21/0208 , G10L21/0216
CPC分类号： G10L21/0208 , G10L2021/02163 , G10L2021/02166
摘要： In accordance with an embodiment of the present invention, a noise reduction method for speech processing includes detecting if two signals from two microphones are so close to each other in non voice area that the two microphones are equivalent to Single-Microphone for noise/interference reduction processing. Single-Microphone noise/interference reduction processing algorithm is selected if the equivalent Single-Microphone is detected; Multiple-Microphone noise/interference reduction processing algorithm is selected if the equivalent Single-Microphone is not detected.
摘要翻译：根据本发明的实施例，用于语音处理的噪声降低方法包括检测来自两个麦克风的两个信号是否在非语音区域中彼此如此接近，使得两个麦克风相当于用于噪声/干扰减少的单麦克风处理。如果检测到等效的单麦克风，则选择单麦克风噪声/干扰减少处理算法; 如果未检测到等效的单麦克风，则选择多麦克风噪声/干扰减少处理算法。

8. 发明授权

US09373340B2 Method and apparatus for suppressing wind noise 有权
标题翻译：用于抑制风噪声的方法和装置
公开(公告)号：US09373340B2
公开(公告)日：2016-06-21
申请号：US13013358
申请日：2011-01-25
申请人： Phil Hetherington , Xueman Li , Pierre Zakarauskas
发明人： Phil Hetherington , Xueman Li , Pierre Zakarauskas
IPC分类号： G10L21/02 , H04B15/00 , G10L21/0208 , G10L21/0216 , G10L21/0232
CPC分类号： G10L21/0232 , G10L21/0208 , G10L21/0264 , G10L2021/02163 , H04R2410/07
摘要： The invention includes a method, apparatus, and computer program to selectively suppress wind noise while preserving narrow-band signals in acoustic data. Sound from one or several microphones is digitized into binary data. A time-frequency transform is applied to the data to produce a series of spectra. The spectra are analyzed to detect the presence of wind noise and narrow band signals. Wind noise is selectively suppressed while preserving the narrow band signals. The narrow band signal is interpolated through the times and frequencies when it is masked by the wind noise. A time series is then synthesized from the signal spectral estimate that can be listened to. This invention overcomes prior art limitations that require more than one microphone and an independent measurement of wind speed. Its application results in good-quality speech from data severely degraded by wind noise.
摘要翻译：本发明包括一种在声学数据中保留窄带信号的同时选择性地抑制风噪声的方法，装置和计算机程序。来自一个或多个麦克风的声音被数字化为二进制数据。时间 - 频率变换被应用于数据以产生一系列光谱。分析光谱以检测风噪声和窄带信号的存在。选择性地抑制风噪声，同时保持窄带信号。当窄带信号被风噪声掩蔽时，频带信号经过时间和频率被内插。然后从可以听到的信号谱估计合成时间序列。本发明克服了现有技术的限制，其需要多于一个麦克风和独立的风速测量。其应用导致了风噪声严重恶化的数据的高质量语音。

9. 发明申请

US20160163327A1 AUTOMATIC TIMBRE CONTROL 审中-公开
标题翻译：自动木马控制
公开(公告)号：US20160163327A1
公开(公告)日：2016-06-09
申请号：US14906687
申请日：2014-07-02
申请人： HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH
发明人： Markus CHRISTOPH
IPC分类号： G10L21/02 , G10L21/0232 , G10L21/034 , G10L19/02
CPC分类号： G10L21/0205 , G10L19/0212 , G10L21/0232 , G10L21/034 , G10L2021/02163 , H04R3/04 , H04S7/30
摘要： A system and method for automatically controlling the timbre of a sound signal in a listening room are also disclosed, which include the following: producing sound in the time domain from a re-transformed electrical sound signal in the time domain, in which an electrical sound signal in the time domain being transformed into electrical sound signal in the frequency domain and the electrical sound signal in the frequency domain being re-transformed into the re-transformed electrical sound signal; generating a total sound signal representative of the total sound in the room, processing the total sound signal to extract an estimated ambient noise signal representing the ambient noise in the room; and adjusting the spectral gain of the electrical sound signal in the frequency domain dependent on the estimated ambient noise signal, the electrical sound signal and a room dependent gain signal.
摘要翻译：还公开了一种用于在听音室中自动控制声音信号的音色的系统和方法，其包括以下内容：在时域中从在时域中重新变换的电声信号产生声音，其中电声时域中的信号被变换为频域中的电声信号，频域中的电声信号被重新转换为重新变换的电声信号; 产生代表房间中总声音的总声音信号，处理总声音信号以提取表示房间中环境噪声的估计环境噪声信号; 以及根据所估计的环境噪声信号，电声信号和与房间相关的增益信号，调整频域中的电声信号的频谱增益。

10. 发明授权

US09224395B2 Voice detection for automatic volume controls and voice sensors 有权
标题翻译：自动音量控制和语音传感器的语音检测
公开(公告)号：US09224395B2
公开(公告)日：2015-12-29
申请号：US12983822
申请日：2011-01-03
申请人： Franklin S. Felber
发明人： Franklin S. Felber
IPC分类号： H04B15/00 , G10L15/22
CPC分类号： G10L15/22 , G10L2021/02163 , G10L2025/783 , H03G3/24
摘要： A voice detection system and method for automatic volume controls and voice sensors is disclosed. More specifically, the invention addresses a situation where the user's own voice undesirably affects the functionality of an automatic volume control for a two-way communication device, such as a cellular telephone. In addition, the invention proposes solutions wherein one (voice) microphone is employed and also, when two (voice and noise) microphones are employed. Further, an algorithm is disclosed that addresses the issue concerning the user's own voice in an AVC pertaining to the two microphone solution. Yet further, a method herein is disclosed that detects the presence of voice in a single non-selective (noise) microphone.
摘要翻译：公开了一种用于自动音量控制和语音传感器的语音检测系统和方法。更具体地，本发明解决了用户自己的语音不期望地影响诸如蜂窝电话的双向通信设备的自动音量控制的功能的情况。此外，本发明提出了一种（语音）麦克风被采用的解决方案，并且当使用两个（话音和噪声）麦克风时也是如此。此外，公开了一种在涉及两个麦克风解决方案的AVC中解决与用户自己的语音有关的问题的算法。此外，公开了一种在单个非选择性（噪声）麦克风中检测语音的存在的方法。

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