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    Synchronizing audio signal sampling in a wireless, digital audio conferencing system
    2.
    发明授权
    Synchronizing audio signal sampling in a wireless, digital audio conferencing system 有权
    在无线数字音频会议系统中同步音频信号采样

    公开(公告)号：US08958897B2

    公开(公告)日：2015-02-17

    申请号：US13541148

    申请日：2012-07-03

    Applicant: Pascal Cleve ,  Mark DesMarais ,  Timothy D Root

    Inventor： Pascal Cleve ,  Mark DesMarais ,  Timothy D Root

    IPC: G06F17/00 ,  H04B7/00

    CPC classification number: H04M3/568 ,  G10L2021/02082 ,  H04M3/002 ,  H04M3/567 ,  H04M9/082 ,  H04M2203/509 ,  H04M2250/62

    Abstract: A digital audio conferencing system has a fixed base station that is in communication with a far end (R.E.) system over a communication network. The base station is associated with a wireless loudspeaker and one or more wireless microphones. The base station operates to receive F.E. audio signals to be played by the wireless loudspeaker, and it operates to remove acoustic echo picked up by the wireless microphones. A first clock controlling F.E. audio signal sampling at the base station, and a second clock controlling audio signal sampling and at a wireless microphone are synchronized to one master, reference clock that controls the operation of the base station. Acoustic echo included in an audio signal picked up by a wireless microphone is removed by AEC functionality running in the base station.

    Abstract translation: 数字音频会议系统具有通过通信网络与远端（R.E.）系统通信的固定基站。 基站与无线扬声器和一个或多个无线麦克风相关联。 基站操作以接收由无线扬声器播放的F.E.音频信号，并且其操作以去除由无线麦克风拾取的声学回声。 控制基站处的F.E.音频信号采样的第一时钟和控制音频信号采样的第二时钟和无线麦克风同步到控制基站操作的一个主控参考时钟。 包含在由无线麦克风拾取的音频信号中的声学回声由在基站中运行的AEC功能消除。

    SYNCHRONIZING AUDIO SIGNAL SAMPLING IN A WIRELESS, DIGITAL AUDIO CONFERENCING SYSTEM
    3.
    发明申请
    SYNCHRONIZING AUDIO SIGNAL SAMPLING IN A WIRELESS, DIGITAL AUDIO CONFERENCING SYSTEM 有权
    在无线数字音频会议系统中同步采集音频信号

    公开(公告)号：US20140009564A1

    公开(公告)日：2014-01-09

    申请号：US13541148

    申请日：2012-07-03

    Applicant: Pascal Cleve ,  Mark DesMarais ,  Timothy D. Root

    Inventor： Pascal Cleve ,  Mark DesMarais ,  Timothy D. Root

    IPC: H04N7/14 ,  H04M3/42 ,  H04W4/00

    CPC classification number: H04M3/568 ,  G10L2021/02082 ,  H04M3/002 ,  H04M3/567 ,  H04M9/082 ,  H04M2203/509 ,  H04M2250/62

    Abstract: A digital audio conferencing system has a fixed base station that is in communication with a far end (R.E.) system over a communication network. The base station is associated with a wireless loudspeaker and one or more wireless microphones. The base station operates to receive F.E. audio signals to be played by the wireless loudspeaker, and it operates to remove acoustic echo picked up by the wireless microphones. A first clock controlling F.E. audio signal sampling at the base station, and a second clock controlling audio signal sampling and at a wireless microphone are synchronized to one master, reference clock that controls the operation of the base station. Acoustic echo included in an audio signal picked up by a wireless microphone is removed by AEC functionality running in the base station.

    Abstract translation: 数字音频会议系统具有通过通信网络与远端（R.E.）系统通信的固定基站。 基站与无线扬声器和一个或多个无线麦克风相关联。 基站操作以接收由无线扬声器播放的F.E.音频信号，并且其操作以去除由无线麦克风拾取的声学回声。 控制基站处的F.E.音频信号采样的第一时钟和控制音频信号采样的第二时钟和无线麦克风同步到控制基站操作的一个主控参考时钟。 包含在由无线麦克风拾取的音频信号中的声学回声由在基站中运行的AEC功能消除。

    Systems and methods for acoustic echo cancellation with wireless microphones and speakers
    6.
    发明授权
    Systems and methods for acoustic echo cancellation with wireless microphones and speakers 有权
    使用无线麦克风和扬声器进行声学回声消除的系统和方法

    公开(公告)号：US09219958B2

    公开(公告)日：2015-12-22

    申请号：US13909494

    申请日：2012-02-22

    Applicant: Pascal Cleve

    Inventor： Pascal Cleve

    IPC: H04M9/08 ,  H04R3/00 ,  H04R3/02 ,  H04M3/00 ,  H04M3/56

    CPC classification number: H04R3/002 ,  H04M3/002 ,  H04M3/568 ,  H04M9/082 ,  H04R3/02 ,  H04R2420/07

    Abstract: Systems and methods for acoustic echo cancellation with wireless microphone and speaker systems are described herein. In one embodiment, an acoustic echo canceller is provided that can, among other things, cancel an acoustic echo component of an audio signal that is produced when an audio signal transmitted to a remote speaker on a lossy wireless link is picked up by a remote microphone and transmitted back to a base station on a lossy wireless link.

    Abstract translation: 本文描述了用无线麦克风和扬声器系统进行声学回声消除的系统和方法。 在一个实施例中，提供了一种声学回声消除器，其可以除去其中当在有损无线链路上发送到远程扬声器的音频信号由远程麦克风拾取时产生的音频信号的声学回声分量 并在有损无线链路上发送回基站。

    SOUND CLASS IDENTIFICATION USING A NEURAL NETWORK
    8.
    发明申请
    SOUND CLASS IDENTIFICATION USING A NEURAL NETWORK 审中-公开

    公开(公告)号：US20200184991A1

    公开(公告)日：2020-06-11

    申请号：US16210431

    申请日：2018-12-05

    Applicant: PASCAL CLEVE

    Inventor： PASCAL CLEVE

    IPC: G10L25/30 ,  G10L25/57 ,  G10L25/60 ,  G06N3/08 ,  H04S7/00 ,  H04N7/15

    Abstract: An audio or video conference system operates to receive sound information, sample the sound information and transform each sample of sound information into a sound image representing one or more sound characteristics. Each sound image is applied to the input of a neural network that is trained, using training sound images, to identify different classes of sound, and the output of the neural network is the identity of a class of sound associated with the sound image applied to the neural network. The identity of the sound class can be used to determine how the sample of sound is processed prior to sending it to a remote communication system.

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