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1. 发明授权

US09373339B2 Speech intelligibility enhancement system and method 有权
标题翻译：语音清晰度增强系统和方法
公开(公告)号：US09373339B2
公开(公告)日：2016-06-21
申请号：US12464355
申请日：2009-05-12
申请人： Jes Thyssen , Juin-Hwey Chen , Wilfrid LeBlanc
发明人： Jes Thyssen , Juin-Hwey Chen , Wilfrid LeBlanc
IPC分类号： G10L21/02 , G10L21/0208 , G10L19/012 , G10L21/0232
CPC分类号： G10L21/0208 , G10L19/012 , G10L21/0232
摘要： A speech intelligibility enhancement (SIE) system and method is described that improves the intelligibility of a speech signal to be played back by an audio device when the audio device is located in an environment with loud acoustic background noise. In an embodiment, the audio device comprises a near-end telephony terminal and the speech signal comprises a speech signal received over a communication network from a far-end telephony terminal for playback at the near-end telephony terminal.
摘要翻译：描述了一种语音清晰度增强（SIE）系统和方法，当音频设备位于具有大声背景噪声的环境中时，提高了由音频设备重放的语音信号的可懂度。在一个实施例中，音频设备包括近端电话终端，并且语音信号包括通过通信网络从远端电话终端接收的用于在近端电话终端回放的语音信号。

2. 发明授权

US09253568B2 Single-microphone wind noise suppression 有权
标题翻译：单麦克风风噪声抑制
公开(公告)号：US09253568B2
公开(公告)日：2016-02-02
申请号：US12780179
申请日：2010-05-14
申请人： Elias Nemer , Wilfrid LeBlanc , Syavosh Zad-Issa , Jes Thyssen
发明人： Elias Nemer , Wilfrid LeBlanc , Syavosh Zad-Issa , Jes Thyssen
IPC分类号： G10L19/00 , H04R3/00
CPC分类号： H04R3/007
摘要： A technique for suppressing non-stationary noise, such as wind noise, in an audio signal is described. In accordance with the technique, a series of frames of the audio signal is analyzed to detect whether the audio signal comprises non-stationary noise. If it is detected that the audio signal comprises non-stationary noise, a number of steps are performed. In accordance with these steps, a determination is made as to whether a frame of the audio signal comprises non-stationary noise or speech and non-stationary noise. If it is determined that the frame comprises non-stationary noise, a first filter is applied to the frame and if it is determined that the frame comprises speech and non-stationary noise, a second filter is applied to the frame.
摘要翻译：描述了用于抑制音频信号中的诸如风噪声之类的非平稳噪声的技术。根据该技术，分析音频信号的一系列帧以检测音频信号是否包括非平稳噪声。如果检测到音频信号包括非平稳噪声，则执行多个步骤。根据这些步骤，确定音频信号的帧是否包括非平稳噪声或语音和非平稳噪声。如果确定帧包括非平稳噪声，则将第一滤波器应用于帧，并且如果确定帧包括语音和非平稳噪声，则将第二滤波器应用于帧。

3. 发明授权

US09196258B2 Spectral shaping for speech intelligibility enhancement 有权
标题翻译：用于语音清晰度增强的光谱整形
公开(公告)号：US09196258B2
公开(公告)日：2015-11-24
申请号：US12464517
申请日：2009-05-12
申请人： Wilfrid LeBlanc , Juin-Hwey Chen , Jes Thyssen
发明人： Wilfrid LeBlanc , Juin-Hwey Chen , Jes Thyssen
IPC分类号： G10L19/14 , G10L19/012 , G10L21/0208 , G10L21/0232
CPC分类号： G10L21/0208 , G10L19/012 , G10L21/0232
摘要： A speech intelligibility enhancement (SIE) system and method is described that improves the intelligibility of a speech signal to be played back by an audio device when the audio device is located in an environment with loud acoustic background noise. In an embodiment, the audio device comprises a near-end telephony terminal and the speech signal comprises a speech signal received over a communication network from a far-end telephony terminal for playback at the near-end telephony terminal.
摘要翻译：描述了一种语音清晰度增强（SIE）系统和方法，当音频设备位于具有大声背景噪声的环境中时，提高了由音频设备重放的语音信号的清晰度。在一个实施例中，音频设备包括近端电话终端，并且语音信号包括通过通信网络从远端电话终端接收的用于在近端电话终端回放的语音信号。

4. 发明授权

US08982744B2 Method and system for a subband acoustic echo canceller with integrated voice activity detection 有权
标题翻译：具有集成语音活动检测功能的子带声回波消除器的方法和系统
公开(公告)号：US08982744B2
公开(公告)日：2015-03-17
申请号：US11758928
申请日：2007-06-06
申请人： Sumit Sanyal , Wilfrid LeBlanc
发明人： Sumit Sanyal , Wilfrid LeBlanc
IPC分类号： H04B3/20 , G10L19/00 , H04M9/08 , H04W52/28 , G10L25/78
CPC分类号： G10L19/0019 , G10L19/00 , G10L25/78 , H04M9/085 , H04W52/287
摘要： Methods and systems for a subband acoustic echo canceller with integrated voice activity detection are disclosed and may include adjusting transmit and/or receive powers of wirelessly communicated audio signals based on voice activity detection via subband analysis of the wirelessly communicated audio signals. The receive power may be adjusted by utilizing a reduced duty cycle, or by conveying voice activity detection information via an asynchronous control channel in a Bluetooth application. A plurality of subbands may be generated utilizing a fast Fourier transform, and a first subset of the subbands corresponding to voice activity may be selected and a second subset of the subbands may be selected that corresponds to background noise. The processing of the subsets may be dynamically adjusted due to variations in the voice activity or background noise. Comfort noise may be generated and transmitted at a reduced bandwidth utilizing the second subset of the subbands.
摘要翻译：公开了具有集成语音活动检测的子带声回波消除器的方法和系统，并且可以包括基于通过无线传送音频信号的子带分析的语音活动检测来调整无线传送的音频信号的发射和/或接收功率。可以通过利用减小的占空比来调整接收功率，或者通过蓝牙应用中的异步控制信道传送话音活动检测信息。可以利用快速傅里叶变换来生成多个子带，并且可以选择对应于语音活动的子带的第一子集，并且可以选择对应于背景噪声的子带的第二子集。可以由于语音活动或背景噪声的变化来动态调整子集的处理。可以利用子带的第二子集以减小的带宽产生舒适噪声并发送。

5. 发明授权

US08379779B2 Echo cancellation for a packet voice system 有权
公开(公告)号：US08379779B2
公开(公告)日：2013-02-19
申请号：US12353099
申请日：2009-01-13
申请人： Wilfrid LeBlanc
发明人： Wilfrid LeBlanc
IPC分类号： H03D1/04
CPC分类号： H04M11/062 , G10L19/0208 , G10L19/24 , H04L5/06 , H04L47/32 , H04L49/90
摘要： An apparatus and methods supporting improved echo cancellation in a packet network is disclosed. An embodiment of the present invention may permit a split-band communication system operating in a narrowband mode to provide improved suppression of hybrid echo generated by the conversion of signals from a packet network to a two-wire analog circuit. By detecting the presence of signal characteristics outside of the relatively narrower bandwidth to be communicated, such an embodiment may more accurately detect the occurrence of speech received from a party on a relatively wider bandwidth communication circuit. The accurate detection of speech permits more effective suppression of any hybrid echo remaining after echo cancellation. An embodiment of the present invention may also have application in other systems that detect signals received via a path having a bandwidth greater than that to be transmitted.

6. 发明申请

US20110095875A1 ADJUSTMENT OF MEDIA DELIVERY PARAMETERS BASED ON AUTOMATICALLY-LEARNED USER PREFERENCES 审中-公开
标题翻译：基于自动学习用户偏好调整媒体传送参数
公开(公告)号：US20110095875A1
公开(公告)日：2011-04-28
申请号：US12751381
申请日：2010-03-31
申请人： Jes Thyssen , Wilfrid LeBlanc
发明人： Jes Thyssen , Wilfrid LeBlanc
IPC分类号： H04B3/36 , H03G3/20 , G09G5/10 , G09G5/00
CPC分类号： H03G3/32 , G09G5/10 , G09G2320/0606 , G09G2320/0626 , G09G2320/08 , G09G2360/144
摘要： Systems and methods are described that automatically adjust a value of a parameter relating to the delivery of media content, such as audio content or image content, based on both environmental conditions and on automatically-learned user preference data. For example, a first embodiment adjusts a volume setting used to control the delivery of an audio signal based both on environmental noise conditions and upon automatically-learned user preference information, wherein the user preference information is derived by monitoring user-implemented adjustments to the volume setting after application of an automatic adjustment thereto. As another example, a second embodiment adjusts a brightness setting used to control the brightness of a display used for rendering images based both on an ambient light level and upon automatically-learned user preference information, wherein the user preference information is derived by monitoring user-implemented adjustments to the brightness setting after application of an automatic adjustment thereto.
摘要翻译：描述了系统和方法，其基于两种环境条件和自动学习的用户偏好数据自动调整与媒体内容（诸如音频内容或图像内容）的传递相关的参数的值。例如，第一实施例基于环境噪声条件和自动学习的用户偏好信息调整用于控制音频信号的传送的音量设置，其中通过监视用户对音量的调整来导出用户偏好信息在对其进行自动调整之后进行设定。作为另一示例，第二实施例基于环境光水平和自动学习的用户偏好信息来调整用于控制用于渲染图像的显示器的亮度的亮度设置，其中，通过监视用户偏好信息来导出用户偏好信息，在对其进行自动调整之后对亮度设定进行了调整。

7. 发明授权

US07920697B2 Interaction between echo canceller and packet voice processing 失效
标题翻译：回波消除器和分组语音处理之间的相互作用
公开(公告)号：US07920697B2
公开(公告)日：2011-04-05
申请号：US11194924
申请日：2005-08-02
申请人： Wilfrid LeBlanc
发明人： Wilfrid LeBlanc
IPC分类号： H04M9/08
CPC分类号： H04L27/0012 , H04B3/23 , H04J3/1688 , H04J3/22 , H04L12/2801 , H04L12/6418 , H04L12/66 , H04L29/06 , H04L29/06027 , H04L47/10 , H04L47/11 , H04L47/263 , H04L47/28 , H04L65/1026 , H04L65/103 , H04L65/1036 , H04L65/104 , H04L65/1043 , H04L65/1069 , H04L65/607 , H04L65/80 , H04L67/322 , H04L69/329 , H04L2001/0093 , H04L2012/5671 , H04M3/002 , H04M3/22 , H04M3/2209 , H04M3/2272 , H04M7/006 , H04M7/0069 , H04M7/0072 , H04M2201/40 , H04M2201/52 , H04M2203/2027 , H04M2203/2066 , H04Q1/45
摘要： System and method for processing communication signals in a communication system having a detector for detecting a parameter of a communication signal. A communication signal is provided to a non-linear processor (NLP) adapted to examine the signal and to decide whether or not to enter an active state based upon a parameter of the signal. If the NLP enters an active state, the NLP performs non-linear processing on the signal. The NLP communicates to the detector whether the NLP is active or inactive. If the NLP is active, a processing step of the detector is disabled.
摘要翻译：在具有用于检测通信信号的参数的检测器的通信系统中处理通信信号的系统和方法。通信信号被提供给非线性处理器（NLP），该非线性处理器适于检查该信号并根据该信号的参数决定是否进入活动状态。如果NLP进入活动状态，则NLP对该信号执行非线性处理。 NLP是否激活或不活动，NLP与检测器通信。如果NLP有效，则检测器的处理步骤被禁用。

8. 发明授权

US07760673B2 Selectively adaptable far-end echo cancellation in a packet voice system 有权
标题翻译：分组语音系统中选择性适应远端回声消除
公开(公告)号：US07760673B2
公开(公告)日：2010-07-20
申请号：US12202634
申请日：2008-09-02
申请人： Wilfrid LeBlanc
发明人： Wilfrid LeBlanc
IPC分类号： H04B3/20
CPC分类号： H04B3/23 , H04M9/082
摘要： A packet voice transceiver adapted to reside at a first end of a communication network and to send an ingress communication signal comprising voice packets to, and receive an egress communication signal comprising voice packets from, a second packet voice transceiver residing at a second end of the communication network. The packet voice transceiver includes a far-end echo canceller that reduces echo that is present in the egress communication signal. The far-end communicates with other functional components of the transceiver system and cancels echo or refrains from canceling echo based on the activity of the other functional components.
摘要翻译：分组语音收发器，适于驻留在通信网络的第一端，并且发送包括语音分组的入口通信信号，并且从驻留在所述第二端的第二分组语音收发器接收包括语音分组的出口通信信号通讯网络分组语音收发器包括远端回波消除器，其减少存在于出口通信信号中的回波。远端与收发器系统的其他功能组件进行通信，并根据其他功能组件的活动消除回声或抑制消除回声。

9. 发明申请

US20090271186A1 AUDIO SIGNAL SHAPING FOR PLAYBACK BY AUDIO DEVICES 有权
标题翻译：通过音频设备播放的音频信号
公开(公告)号：US20090271186A1
公开(公告)日：2009-10-29
申请号：US12109017
申请日：2008-04-24
申请人： Wilfrid LeBlanc , Taro Umezawa
发明人： Wilfrid LeBlanc , Taro Umezawa
IPC分类号： G10L21/02
CPC分类号： G10L21/02 , H03G7/007 , H03G9/005 , H03G9/025
摘要： A technique is provided for limiting distortion of an audio signal being processed for playback by an audio device. In accordance with the technique, the audio signal is compressed to generate a compressed audio signal having a level that does not exceed a compression limit. The compressed audio signal is then soft clipped signal to generate a soft-clipped audio signal having a level that does not exceed a soft clipping limit, wherein the compression limit exceeds the soft clipping limit. The technique may also include passing the audio signal through a shaping filter prior to compressing the audio signal, wherein passing the audio signal through a shaping filter comprises modifying the level of selected frequency components of the audio signal.
摘要翻译：提供了一种用于限制被音频设备进行播放的音频信号的失真的技术。根据该技术，音频信号被压缩以产生具有不超过压缩极限的电平的压缩音频信号。然后，压缩音频信号是软限幅信号以产生具有不超过软限幅限制的电平的软限幅音频信号，其中压缩限制超过软限幅限制。该技术还可以包括在压缩音频信号之前通过整形滤波器传递音频信号，其中使音频信号通过整形滤波器包括修改音频信号的选定频率分量的电平。

10. 发明申请

US20080306736A1 METHOD AND SYSTEM FOR A SUBBAND ACOUSTIC ECHO CANCELLER WITH INTEGRATED VOICE ACTIVITY DETECTION 有权
标题翻译：具有集成语音活动检测功能的子带声音解码器的方法与系统
公开(公告)号：US20080306736A1
公开(公告)日：2008-12-11
申请号：US11758928
申请日：2007-06-06
申请人： Sumit Sanyal , Wilfrid LeBlanc
发明人： Sumit Sanyal , Wilfrid LeBlanc
IPC分类号： G10L15/20
CPC分类号： G10L19/0019 , G10L19/00 , G10L25/78 , H04M9/085 , H04W52/287
摘要： Methods and systems for a subband acoustic echo canceller with integrated voice activity detection are disclosed and may include adjusting transmit and/or receive powers of wirelessly communicated audio signals based on voice activity detection via subband analysis of the wirelessly communicated audio signals. The receive power may be adjusted by utilizing a reduced duty cycle, or by conveying voice activity detection information via an asynchronous control channel in a Bluetooth application. A plurality of subbands may be generated utilizing a fast Fourier transform, and a first subset of the subbands corresponding to voice activity may be selected and a second subset of the subbands may be selected that corresponds to background noise. The processing of the subsets may be dynamically adjusted due to variations in the voice activity or background noise. Comfort noise may be generated and transmitted at a reduced bandwidth utilizing the second subset of the subbands.
摘要翻译：公开了具有集成语音活动检测的子带声回波消除器的方法和系统，并且可以包括基于通过无线传送音频信号的子带分析的语音活动检测来调整无线传送的音频信号的发射和/或接收功率。可以通过利用减小的占空比来调整接收功率，或者通过蓝牙应用中的异步控制信道传送话音活动检测信息。可以利用快速傅里叶变换来生成多个子带，并且可以选择对应于语音活动的子带的第一子集，并且可以选择对应于背景噪声的子带的第二子集。可以由于语音活动或背景噪声的变化来动态调整子集的处理。可以利用子带的第二子集以减小的带宽产生舒适噪声并发送。

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