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    AUDIO SIGNAL COMPONENT COMPENSATION SYSTEM
    1.
    发明申请
    AUDIO SIGNAL COMPONENT COMPENSATION SYSTEM 有权
    音频信号分量补偿系统

    公开(公告)号：US20120201396A1

    公开(公告)日：2012-08-09

    申请号：US13368092

    申请日：2012-02-07

    申请人： Gerhard Uwe Schmidt ,  Tim Haulick ,  Harald Lenhardt

    发明人： Gerhard Uwe Schmidt ,  Tim Haulick ,  Harald Lenhardt

    IPC分类号： G10K11/16

    CPC分类号： G10L21/02 ,  G10L2021/02082 ,  H04R3/02 ,  H04R2499/13

    摘要： A system and method for compensating audio signal components is disclosed. The method includes detecting, by a microphone, a sound signal. The sound signal comprises audio signal components resulting from reproducing an audio signal of an audio source and speech signal components corresponding to a speech signal from a person. The sound signal is filtered to whiten the sound signal. The audio signal components in the whitened sound signal are then compensated. The whitening of the compensated sound signal is removed. The filtering of the audio signal is performed using at least two filters in an alternating way, each filter using time-dependent filter coefficients.

    摘要翻译： 公开了用于补偿音频信号分量的系统和方法。 该方法包括通过麦克风检测声音信号。 该声音信号包括从再现音频源的音频信号和对应于来自人的语音信号的语音信号分量产生的音频信号分量。 声音信号被过滤以使声音信号变白。 然后补偿白化的声音信号中的音频信号分量。 消除补偿声音信号的白化。 使用至少两个滤波器以交替方式来执行音频信号的滤波，每个滤波器使用时间依赖滤波器系数。

    Mono and multi-channel echo compensation from selective output
    2.
    发明授权
    Mono and multi-channel echo compensation from selective output 有权
    选择输出的单通道和多通道回波补偿

    公开(公告)号：US09111544B2

    公开(公告)日：2015-08-18

    申请号：US13368092

    申请日：2012-02-07

    申请人： Gerhard Uwe Schmidt ,  Tim Haulick ,  Harald Lenhardt

    发明人： Gerhard Uwe Schmidt ,  Tim Haulick ,  Harald Lenhardt

    IPC分类号： G10L21/02 ,  H04B3/20 ,  H04R3/12 ,  H04R3/02 ,  G10L21/0208

    CPC分类号： G10L21/02 ,  G10L2021/02082 ,  H04R3/02 ,  H04R2499/13

    摘要： A system and method for compensating audio signal components is disclosed. The method includes detecting, by a microphone, a sound signal. The sound signal comprises audio signal components resulting from reproducing an audio signal of an audio source and speech signal components corresponding to a speech signal from a person. The sound signal is filtered to whiten the sound signal. The audio signal components in the whitened sound signal are then compensated. The whitening of the compensated sound signal is removed. The filtering of the audio signal is performed using at least two filters in an alternating way, each filter using time-dependent filter coefficients.

    摘要翻译： 公开了用于补偿音频信号分量的系统和方法。 该方法包括通过麦克风检测声音信号。 该声音信号包括从再现音频源的音频信号和对应于来自人的语音信号的语音信号分量产生的音频信号分量。 声音信号被过滤以使声音信号变白。 然后补偿白化的声音信号中的音频信号分量。 消除补偿声音信号的白化。 使用至少两个滤波器以交替方式来执行音频信号的滤波，每个滤波器使用时间依赖滤波器系数。

    Feedback reduction system
    3.
    发明授权
    Feedback reduction system 有权
    反馈减少系统

    公开(公告)号：US08175290B2

    公开(公告)日：2012-05-08

    申请号：US11775687

    申请日：2007-07-10

    申请人： Tim Haulick ,  Gerhard Uwe Schmidt ,  Harald Lenhardt

    发明人： Tim Haulick ,  Gerhard Uwe Schmidt ,  Harald Lenhardt

    IPC分类号： H04B15/00

    CPC分类号： H04M9/082

    摘要： A feedback reduction system adaptively processes a microphone signal. An adaptive feedback suppression filter circuit processes the microphone signal, and an adaptive feedback compensation filter circuit further processes the microphone signal. The adaptive feedback suppression filter circuit processes the signal based upon output from the adaptive filter compensation filter circuit.

    摘要翻译： 反馈减少系统自适应地处理麦克风信号。 自适应反馈抑制滤波器电路处理麦克风信号，并且自适应反馈补偿滤波器电路进一步处理麦克风信号。 自适应反馈抑制滤波器电路根据自适应滤波器补偿滤波器电路的输出来处理该信号。

    DETECTING BARGE-IN IN A SPEECH DIALOGUE SYSTEM
    8.
    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。

    LOW COMPLEXITY ECHO COMPENSATION SYSTEM
    10.
    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。