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    System for detecting and reducing noise via a microphone array
    31.
    发明申请
    System for detecting and reducing noise via a microphone array 有权
    用于通过麦克风阵列检测和降低噪声的系统

    公开(公告)号：US20050213778A1

    公开(公告)日：2005-09-29

    申请号：US11083190

    申请日：2005-03-17

    申请人： Markus Buck ,  Tim Haulick

    发明人： Markus Buck ,  Tim Haulick

    IPC分类号： H04R1/40 ,  G10L15/20 ,  H04B15/00 ,  H04M9/08 ,  H04R3/00

    CPC分类号： H04R29/005 ,  G10L21/0216 ,  G10L21/0232 ,  G10L2021/02166 ,  H04R3/005 ,  H04R2410/07 ,  H04R2430/20

    摘要： A system for detecting noise in a signal received by a microphone array and a method for detecting noise in a signal received by a microphone array is disclosed. The system also provides for the reduction of noise in a signal received by a microphone array and a method for reducing noise in a signal received by a microphone array. The signal to noise ratio in handsfree systems may be improved, particularly in handsfree systems present in a vehicular environment.

    摘要翻译： 公开了一种用于检测由麦克风阵列接收的信号中的噪声的系统和用于检测由麦克风阵列接收的信号中的噪声的方法。 该系统还提供了降低由麦克风阵列接收的信号中的噪声以及用于降低由麦克风阵列接收的信号中的噪声的方法。 免提系统中的信噪比可以得到改善，特别是在车辆环境中的免提系统中。

    System for detecting and reducing noise via a microphone array
    35.
    发明授权
    System for detecting and reducing noise via a microphone array 有权
    用于通过麦克风阵列检测和降低噪声的系统

    公开(公告)号：US07881480B2

    公开(公告)日：2011-02-01

    申请号：US11083190

    申请日：2005-03-17

    申请人： Markus Buck ,  Tim Haulick

    发明人： Markus Buck ,  Tim Haulick

    IPC分类号： H04B15/00 ,  H03B29/00 ,  H04R3/00

    CPC分类号： H04R29/005 ,  G10L21/0216 ,  G10L21/0232 ,  G10L2021/02166 ,  H04R3/005 ,  H04R2410/07 ,  H04R2430/20

    摘要： A system for detecting noise in a signal received by a microphone array and a method for detecting noise in a signal received by a microphone array is disclosed. The system also provides for the reduction of noise in a signal received by a microphone array and a method for reducing noise in a signal received by a microphone array. The signal to noise ratio in handsfree systems may be improved, particularly in handsfree systems present in a vehicular environment.

    摘要翻译： 公开了一种用于检测由麦克风阵列接收的信号中的噪声的系统和用于检测由麦克风阵列接收的信号中的噪声的方法。 该系统还提供了降低由麦克风阵列接收的信号中的噪声以及用于降低由麦克风阵列接收的信号中的噪声的方法。 免提系统中的信噪比可以得到改善，特别是在车辆环境中的免提系统中。

    DETECTING BARGE-IN IN A SPEECH DIALOGUE SYSTEM
    36.
    发明申请
    DETECTING BARGE-IN IN A SPEECH DIALOGUE SYSTEM 有权
    检测语音对话系统中的边界

    公开(公告)号：US20090254342A1

    公开(公告)日：2009-10-08

    申请号：US12415927

    申请日：2009-03-31

    申请人： Markus Buck ,  Franz Gerl ,  Tim Haulick ,  Tobias Herbig ,  Gerhard Uwe Schmidt ,  Matthias Schulz

    发明人： Markus Buck ,  Franz Gerl ,  Tim Haulick ,  Tobias Herbig ,  Gerhard Uwe Schmidt ,  Matthias Schulz

    IPC分类号： G10L17/00 ,  G10L15/20

    CPC分类号： G10L25/78 ,  G10L15/222 ,  G10L17/00 ,  G10L2025/786

    摘要： A method for detecting barge-in in a speech dialogue system comprising determining whether a speech prompt is output by the speech dialogue system, and detecting whether speech activity is present in an input signal based on a time-varying sensitivity threshold of a speech activity detector and/or based on speaker information, where the sensitivity threshold is increased if output of a speech prompt is determined and decreased if no output of a speech prompt is determined. If speech activity is detected in the input signal, the speech prompt may be interrupted or faded out. A speech dialogue system configured to detect barge-in is also disclosed.

    摘要翻译： 一种用于检测语音对话系统中的插入的方法，包括确定语音对话系统是否输出语音提示，以及基于语音活动检测器的时变灵敏度阈值来检测语音活动是否存在于输入信号中 和/或基于说话者信息，其中如果确定了语音提示的输出，则在不确定语音提示的输出的情况下确定并减小了灵敏度阈值。 如果在输入信号中检测到语音活动，语音提示可能被中断或淡出。 还公开了一种配置成检测插入的语音对话系统。

    DETECTION AND SUPPRESSION OF WIND NOISE IN MICROPHONE SIGNALS
    38.
    发明申请
    DETECTION AND SUPPRESSION OF WIND NOISE IN MICROPHONE SIGNALS 有权
    麦克风信号中风噪声的检测和抑制

    公开(公告)号：US20080226098A1

    公开(公告)日：2008-09-18

    申请号：US11925323

    申请日：2007-10-26

    申请人： Tim Haulick ,  Markus Buck ,  Phillip A. Hetherington ,  Klaus Haindl

    发明人： Tim Haulick ,  Markus Buck ,  Phillip A. Hetherington ,  Klaus Haindl

    IPC分类号： H04B15/00

    CPC分类号： G10L21/0208 ,  G10L2021/02166 ,  H04R3/005 ,  H04R2410/01 ,  H04R2410/07 ,  H04R2499/13

    摘要： To reliably and consistently detect desirable sounds, a system detects the presence of wind noise based on the power levels of audio signals. A first transducer detects sound originating from a first direction and a second transducer detects sound originating from a second direction. The power levels of the sound are compared. When the power level of the sound received from the second transducer is less than the power level of the sound received from the first transducer by a predetermined value, wind noise may be present. A signal processor may generate an output from one or a combination of the audio signals, based on a wind noise detection.

    摘要翻译： 为了可靠和一致地检测所需声音，系统基于音频信号的功率电平来检测风噪声的存在。 第一换能器检测源于第一方向的声音，第二换能器检测来自第二方向的声音。 比较声音的功率级别。 当从第二换能器接收的声音的功率水平小于从第一换能器接收的声音的功率水平预定值时，可能存在风噪声。 信号处理器可以基于风噪声检测从一个音频信号或其组合生成输出。

    VOICE COMMAND PROCESSING SYSTEM IN A VEHICLE ENVIRONMENT
    39.
    发明申请
    VOICE COMMAND PROCESSING SYSTEM IN A VEHICLE ENVIRONMENT 审中-公开
    车辆环境中的语音指令处理系统

    公开(公告)号：US20080154613A1

    公开(公告)日：2008-06-26

    申请号：US11834591

    申请日：2007-08-06

    申请人： Tim Haulick ,  Markus Buck ,  Hans-Joerg Koepf

    发明人： Tim Haulick ,  Markus Buck ,  Hans-Joerg Koepf

    IPC分类号： G10L11/00

    CPC分类号： B60R25/257

    摘要： A voice processing system for a vehicle environment is provided for detecting a sound signal in the vehicle environment and identifying a voice command that originates from a vehicle user outside the vehicle. The voice processing system, in the detected the sound signal, takes into account position information relating to the position of the vehicle user in the vehicle environment. Information on the position of the vehicle user may be obtained from a keyless-go-system or another monitoring device of the motor vehicle, for example an optical imaging device of a parking-assistance system or a driver-assistance system.

    摘要翻译： 提供了一种用于车辆环境的语音处理系统，用于检测车辆环境中的声音信号，并且识别来自车辆外的车辆用户的语音命令。 在检测到声音信号中的语音处理系统考虑与车辆用户在车辆环境中的位置有关的位置信息。 关于车辆用户的位置的信息可以从机动车辆的无钥匙系统或其他监视装置，例如停车辅助系统的光学成像装置或驾驶员辅助系统获得。

    LOW COMPLEXITY ECHO COMPENSATION SYSTEM
    40.
    发明申请
    LOW COMPLEXITY ECHO COMPENSATION SYSTEM 有权
    低复杂度ECHO补偿系统

    公开(公告)号：US20080144848A1

    公开(公告)日：2008-06-19

    申请号：US11955862

    申请日：2007-12-13

    申请人： Markus Buck ,  Tim Haulick ,  Martin Rossler ,  Gerhard Uwe Schmidt ,  Walter Schnug

    发明人： Markus Buck ,  Tim Haulick ,  Martin Rossler ,  Gerhard Uwe Schmidt ,  Walter Schnug

    IPC分类号： H04B3/20

    CPC分类号： H04M9/082

    摘要： An echo reduction system includes a signal analysis filter that converts an input into sub-band signals. A signal down-sampling circuit down-samples the sub-band signals at a first down-sampling rate. An echo analysis filter converts a loudspeaker signal into echo sub-band signal that are further processed by an echo down-sampling circuit. The circuit down-samples the echo sub-band signals at a second down-sampling rate to generate down-sampled echo sub-band signals. An echo compensation filter folds the down-sampled echo sub-band signals with an estimated impulse response of a loudspeaker-room-input system. A second echo down-sampling circuit down-samples the folded down-sampled echo sub-band signals at a third down-sampling rate to generate estimated echo sub-band signals. The first down-sampling rate is equal to the product of the second and third down-sampling rates.

    摘要翻译： 回波减少系统包括将输入转换为子带信号的信号分析滤波器。 信号下采样电路以第一下采样率对子带信号进行下采样。 回波分析滤波器将扬声器信号转换成由回波下采样电路进一步处理的回波子带信号。 电路以第二次下采样率对回波子带信号进行下采样以产生下采样的回波子带信号。 回波补偿滤波器用扬声器室输入系统的估计的脉冲响应折叠下采样的回波子带信号。 第二回波下采样电路以三次下采样率对折叠的下采样回波子带信号进行下采样，以产生估计的回波子带信号。 第一个下采样率等于第二次和第三次下采样率的乘积。