公开(公告)号：US20110026732A1

公开(公告)日：2011-02-03

申请号：US12843632

申请日：2010-07-26

申请人： Markus Buck ,  Tim Haulick

发明人： Markus Buck ,  Tim Haulick

IPC分类号： 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。

公开(公告)号：US20090125311A1

公开(公告)日：2009-05-14

申请号：US11865930

申请日：2007-10-02

申请人： Tim Haulick ,  Markus Buck ,  Marcus Hennecke

发明人： Tim Haulick ,  Markus Buck ,  Marcus Hennecke

IPC分类号： G10L11/00

CPC分类号： B60R16/0373

摘要： A vehicular voice control system includes a first and a second microphone located on a vehicle external to a vehicle cabin. The microphones receive audio signals from an audio source external to the vehicle and generate microphone output signals. A signal processor processes the microphone output signals, generates a processed signal, and determines a location of the audio source. A speech recognition system receives the processed signal and obtains a recognition result. A controller controls one or more vehicular elements based on the recognition result and the determined location of the audio source.

摘要翻译： 车辆语音控制系统包括位于车辆外部的车辆上的第一和第二麦克风。 麦克风从车辆外部的音频源接收音频信号，并产生麦克风输出信号。 信号处理器处理麦克风输出信号，产生经处理的信号，并确定音频源的位置。 语音识别系统接收经处理的信号并获得识别结果。 控制器基于识别结果和确定的音频源的位置来控制一个或多个车辆元件。

公开(公告)号：US20080031466A1

公开(公告)日：2008-02-07

申请号：US11787348

申请日：2007-04-16

申请人： Markus Buck ,  Tim Haulick ,  Martin Roessler ,  Gerhard Schmidt

发明人： Markus Buck ,  Tim Haulick ,  Martin Roessler ,  Gerhard Schmidt

IPC分类号： H04B3/20

CPC分类号： H04M9/082 ,  H04R3/02 ,  H04R2499/13

摘要： The invention is directed to a multi-channel echo compensation system, comprising two loudspeaker input channels, each loudspeaker input channel being connected to a loud-speaker for providing a loudspeaker input signal to be emanated by the loudspeaker, a microphone output channel being connected to at least one microphone for receiving a microphone output signal from the at least one microphone, wherein each microphone is configured to acquire a signal emanating from the loudspeakers, a compensation channel for each loudspeaker input channel, each compensation channel connecting a respective loudspeaker input channel and the microphone output channel, an adaptive compensation filter for each compensation channel, wherein each adaptive compensation filter is configured to filter a signal on the respective compensation channel such that a compensation output signal is provided to compensate a microphone output signal for a signal emanating from the loudspeakers, a pre-processing means for pre-processing loudspeaker input signals on the compensation channels, the pre-processing means being configured to determine a correlation value of the loudspeaker input signals for the two loudspeakers according to a pre-determined criterion and to de-activate one of the adaptive compensation filters if the determined correlation value passes a pre-determined threshold.

摘要翻译： 本发明涉及一种多通道回波补偿系统，包括两个扬声器输入通道，每个扬声器输入通道连接到扬声器，用于提供由扬声器发出的扬声器输入信号;麦克风输出通道连接到 至少一个麦克风，用于从所述至少一个麦克风接收麦克风输出信号，其中每个麦克风被配置为获取从扬声器发出的信号，每个扬声器输入通道的补偿通道，每个补偿通道连接相应的扬声器输入通道和 麦克风输出通道，用于每个补偿通道的自适应补偿滤波器，其中每个自适应补偿滤波器被配置为对相应补偿通道上的信号进行滤波，使得提供补偿输出信号以补偿麦克风输出信号，以产生从 扬声器，预处理手段 用于在补偿通道上预处理扬声器输入信号，预处理装置被配置为根据预定准则确定两个扬声器的扬声器输入信号的相关值，并且去激活自适应补偿中的一个 如果确定的相关值通过预定阈值，则滤波器。

公开(公告)号：US20060222184A1

公开(公告)日：2006-10-05

申请号：US11234837

申请日：2005-09-23

申请人： Markus Buck ,  Tim Haulick ,  Phillip Hetherington ,  Pierre Zakarauskas

发明人： Markus Buck ,  Tim Haulick ,  Phillip Hetherington ,  Pierre Zakarauskas

IPC分类号： A61F11/06 ,  G10K11/16 ,  H03B29/00

CPC分类号： G10L21/0208 ,  G10L21/0216 ,  G10L2021/02166 ,  H04R3/005 ,  H04R2430/25

摘要： An adaptive signal processing system eliminates noise from input signals while retaining desired signal content, such as speech. The resulting low noise output signal delivers improved clarity and intelligibility. The low noise output signal also improves the performance of subsequent signal processing systems, including speech recognition systems. An adaptive beamformer in the signal processing system consistently updates beamforming signal weights in response to changing microphone signal conditions. The adaptive weights emphasize the contribution of high energy microphone signals to the beamformed output signal. In addition, adaptive noise cancellation logic removes residual noise from the beamformed output signal based on a noise estimate derived from the microphone input signals.

摘要翻译： 自适应信号处理系统消除来自输入信号的噪声，同时保留期望的信号内容，例如语音。 所产生的低噪声输出信号提供了更好的清晰度和清晰度。 低噪声输出信号还提高了后续信号处理系统的性能，包括语音识别系统。 信号处理系统中的自适应波束形成器响应于变化的麦克风信号状况持续更新波束成形信号权重。 自适应权重强调高能麦克风信号对波束形成的输出信号的贡献。 此外，自适应噪声消除逻辑基于从麦克风输入信号导出的噪声估计，从波束形成的输出信号中去除残余噪声。

公开(公告)号：US09992572B2

公开(公告)日：2018-06-05

申请号：US11832445

申请日：2007-08-01

申请人： Markus Buck ,  Tim Haulick ,  Gerhard Uwe Schmidt

发明人： Markus Buck ,  Tim Haulick ,  Gerhard Uwe Schmidt

IPC分类号： H04R3/04 ,  H04M9/08 ,  G10L21/0208

CPC分类号： H04R3/04 ,  G10K2210/506 ,  G10L21/0208 ,  G10L2021/02082 ,  H04M9/082 ,  H04R2430/03

摘要： A system used in a loudspeaker-room-microphone environment includes a microphone signal partitioner that divides a signal from a microphone into one or more divided portions. A reverberation energy estimator estimates reverberation energy in some of the divided portions of the microphone signal based on a loudspeaker signal. The estimated reverberation energy is processed to generate a dereverberated output signal.

公开(公告)号：US09026438B2

公开(公告)日：2015-05-05

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： G10L15/00 ,  G10L25/78 ,  G10L15/22 ,  G10L21/00 ,  G10L13/00 ,  H04M1/64 ,  H04M3/42 ,  G06F11/00 ,  G10L17/00

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

摘要： A method for detecting barge-in in a speech dialog system comprising determining whether a speech prompt is output by the speech dialog 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 dialog 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。

公开(公告)号：US08666750B2

公开(公告)日：2014-03-04

申请号：US12023485

申请日：2008-01-31

申请人： Markus Buck ,  Lars König ,  Gerhard Uwe Schmidt

发明人： Markus Buck ,  Lars König ,  Gerhard Uwe Schmidt

IPC分类号： G10L17/00 ,  G10L21/00

CPC分类号： G10L15/28 ,  G10L25/78

摘要： A voice control system allows a user to control a device through voice commands. The voice control system includes a speech recognition unit that receives a control signal from a mobile device and a speech signal from a user. The speech recognition unit configures speech recognition settings in response to the control signal to improve speech recognition.

摘要翻译： 语音控制系统允许用户通过语音命令来控制设备。 语音控制系统包括从移动设备接收控制信号和来自用户的语音信号的语音识别单元。 语音识别单元响应于控制信号配置语音识别设置以改善语音识别。

公开(公告)号：US08660275B2

公开(公告)日：2014-02-25

申请号：US13273816

申请日：2011-10-14

申请人： Markus Buck ,  Tim Haulick

发明人： Markus Buck ,  Tim Haulick

IPC分类号： H04R3/00

CPC分类号： H04R3/005 ,  H04R2430/25

摘要： A microphone compensation system responds to changes in the characteristics of individual microphones in an array of microphones. The microphone compensation system provides a communication system with consistent performance despite microphone aging, widely varying environmental conditions, and other factors that alter the characteristics of the microphones. Furthermore, lengthy, complex, and costly measurement and analysis phases for determining initial settings for filters in the communication system are eliminated.

摘要翻译： 麦克风补偿系统可以响应麦克风阵列中各个麦克风的特性变化。 麦克风补偿系统提供了具有一致性能的通信系统，尽管麦克风老化，广泛变化的环境条件以及改变麦克风特性的其它因素。 此外，消除了用于确定通信系统中的滤波器的初始设置的冗长，复杂且昂贵的测量和分析阶段。

公开(公告)号：US08392184B2

公开(公告)日：2013-03-05

申请号：US12357258

申请日：2009-01-21

申请人： Markus Buck ,  Klaus Scheufele

发明人： Markus Buck ,  Klaus Scheufele

IPC分类号： G10L15/20

CPC分类号： G10L21/0208 ,  G10L2021/02166

摘要： The invention relates to speech signal processing that detects a speech signal from more than one microphone and obtains microphone signals that are processed by a beamformer to obtain a beamformed signal that is post-filtered signal with a filter that employs adaptable filter weights to obtain an enhanced beamformed signal with the post-filter adapting the filter weights with previously learned filter weights.

摘要翻译： 本发明涉及语音信号处理，其检测来自多于一个麦克风的语音信号，并获得由波束形成器处理的麦克风信号，以获得具有滤波后信号的波束形成信号，该滤波器采用适应滤波器权重以获得增强的 波束形成的信号与后置滤波器使用先前学习的滤波器权重来适配滤波器权重。

公开(公告)号：US20120278041A1

公开(公告)日：2012-11-01

申请号：US13518404

申请日：2010-02-05

申请人： Tim Haulick ,  Guido Kolano ,  Martin Roessler ,  Hans-Joerg Koepf ,  Walter Schnug ,  Markus Buck

发明人： Tim Haulick ,  Guido Kolano ,  Martin Roessler ,  Hans-Joerg Koepf ,  Walter Schnug ,  Markus Buck

IPC分类号： G06F15/00

CPC分类号： H04M1/24

摘要： An arrangement is described for measuring performance characteristics of a hands free telephone system. There is a measurement system which is coupleable over a telephone audio interface directly to the hands free telephone system for measuring the performance characteristics.

摘要翻译： 描述了一种用于测量免提电话系统的性能特征的布置。 有一个测量系统可以通过电话音频接口直接连接到免提电话系统上，用于测量性能特征。