利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

10 条记录 (耗时 0.011 秒)

    SPEECH SIGNAL ENHANCEMENT USING VISUAL INFORMATION
    2.
    发明公开
    SPEECH SIGNAL ENHANCEMENT USING VISUAL INFORMATION 有权
    SPRACHSIGVERVERSTÄRKUNGMIT VISUELLEN INFORMATIONEN

    公开(公告)号：EP2766901A1

    公开(公告)日：2014-08-20

    申请号：EP11782489.6

    申请日：2011-10-17

    申请人： Nuance Communications, Inc.

    发明人： HERBIG, Tobias ,  WOLFF, Tobias ,  BUCK, Markus

    IPC分类号： G10L21/02 ,  H04N7/15 ,  H04N1/40 ,  H04M3/56 ,  H04R3/00 ,  H04R3/04

    CPC分类号： G10L25/27 ,  G06K9/00624 ,  G06T7/73 ,  G06T2207/30196 ,  G10L15/20 ,  G10L17/00 ,  G10L25/78 ,  G10L2021/02082 ,  H04M3/568 ,  H04N7/15

    摘要： Visual information is used to alter or set an operating parameter of an audio signal processor, other than a beamformer. A digital camera captures visual information about a scene that includes a human speaker and/or a listener. The visual information is analyzed to ascertain information about acoustics of a room. A distance between the speaker and a microphone may be estimated, and this distance estimate may be used to adjust an overall gain of the system. Distances among, and locations of, the speaker, the listener, the microphone, a loudspeaker and/or a sound- reflecting surface may be estimated. These estimates may be used to estimate reverberations within the room and adjust aggressiveness of an anti-reverberation filter, based on an estimated ratio of direct to indirect (reverberated) sound energy expected to reach the microphone. In addition, orientation of the speaker or the listener, relative to the microphone or the loudspeaker, can also be estimated, and this estimate may be used to adjust frequency-dependent filter weights to compensate for uneven frequency propagation of acoustic signals from a mouth, or to a human ear, about a human head.

    摘要翻译： 视觉信息用于改变或设置除波束形成器之外的音频信号处理器的操作参数。 数码相机捕获包含人类扬声器和/或听众的场景的视觉信息。 分析视觉信息以确定房间的声学信息。 可以估计扬声器和麦克风之间的距离，并且该距离估计可以用于调整系统的整体增益。 可以估计扬声器，收听者，麦克风，扬声器和/或声音反射表面之间的距离和位置。 这些估计可以用于估计房间内的混响，并且基于估计达到麦克风的直接到间接（混响）声能的估计比例来调整反混响滤波器的积极性。 此外，也可以估计扬声器或收听者相对于麦克风或扬声器的取向，并且该估计可用于调整频率依赖的滤波器权重以补偿来自口的声信号的不均匀频率传播， 或人耳，围绕人的头部。

    IN-CAR COMMUNICATION SYSTEM FOR MULTIPLE ACOUSTIC ZONES
    4.
    发明公开
    IN-CAR COMMUNICATION SYSTEM FOR MULTIPLE ACOUSTIC ZONES 审中-公开
    用于多个声学区域的车载通信系统

    公开(公告)号：EP3261364A1

    公开(公告)日：2017-12-27

    申请号：EP17183121.7

    申请日：2013-01-10

    申请人： Nuance Communications, Inc.

    发明人： HERBIG, Tobias ,  BUCK, Markus ,  PFEFFINGER, Meik

    IPC分类号： H04R5/02 ,  H04R3/00 ,  H04R1/40 ,  H04R3/02 ,  H04R3/12

    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 In-Car Communication (ICC) system supports the communication paths within a car by receiving the speech signals of a speaking passenger and playing it back for one or more listening passengers. Signal processing tasks are split into a microphone related part and into a loudspeaker related part. A sound processing system suitable for use in a vehicle having multiple acoustic zones includes a plurality of microphone In-Car Communication (Mic-ICC) instances coupled and a plurality of loudspeaker In-Car Communication (Ls-ICC) instances. The system further includes a dynamic audio routing matrix with a controller and coupled to the Mic-ICC instances, a mixer coupled to the plurality of Mic-ICC instances and a distributor coupled to the Ls-ICC instances.

    摘要翻译： 车内通信（ICC）系统通过接收讲话乘客的语音信号并为一个或多个听众进行回放来支持汽车内的通信路径。 信号处理任务分为麦克风相关部分和扬声器相关部分。 适用于具有多个声学区的车辆的声音处理系统包括耦合的多个麦克风车载通信（Mic-ICC）实例和多个扬声器车载通信（Ls-ICC）实例。 该系统还包括具有控制器并耦合到Mic-ICC实例的动态音频路由矩阵，耦合到多个Mic-ICC实例的混频器以及耦合到Ls-ICC实例的分配器。

    NOISE DEPENDENT SIGNAL PROCESSING FOR IN-CAR COMMUNICATION SYSTEMS WITH MULTIPLE ACOUSTIC ZONES
    6.
    发明公开
    NOISE DEPENDENT SIGNAL PROCESSING FOR IN-CAR COMMUNICATION SYSTEMS WITH MULTIPLE ACOUSTIC ZONES 审中-公开
    噪声相关信号处理具有多个区域声车载通信系统

    公开(公告)号：EP2850611A1

    公开(公告)日：2015-03-25

    申请号：EP12878823.9

    申请日：2012-12-26

    申请人： Nuance Communications, Inc.

    发明人： BUCK, Markus ,  HERBIG, Tobias ,  PFEFFINGER, Meik

    IPC分类号： G10K11/16

    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).

    BABBLE NOISE SUPPRESSION
    8.
    发明公开
    BABBLE NOISE SUPPRESSION 审中-公开

    公开(公告)号：EP3411876A1

    公开(公告)日：2018-12-12

    申请号：EP16808870.6

    申请日：2016-11-18

    申请人： Nuance Communications, Inc.

    发明人： GRAF, Simon ,  HERBIG, Tobias ,  BUCK, Markus

    IPC分类号： G10L21/0208 ,  G10L21/0216 ,  G10L25/84 ,  G10L25/93

    CPC分类号： G10L21/0208 ,  G10L21/0216 ,  G10L25/84 ,  G10L25/93 ,  G10L2021/02087

    摘要： Systems and methods are introduced to perform noise suppression of an audio signal. The audio signal includes foreground speech components and background noise. The foreground speech components correspond to speech from a user's speaking into an audio receiving device. The background noise includes babble noise that includes speech from one or more interfering speakers. A soft speech detector determines, dynamically, a speech detection result indicating a likelihood of a presence of the foreground speech components in the audio signal. The speech detection result is employed to control, dynamically, an amount of attenuation of the noise suppression to reduce the babble noise in the audio signal. Further processing achieves a more stationary background and reduction of musical tones in the audio signal.