公开(公告)号：US20080025527A1

公开(公告)日：2008-01-31

申请号：US11775687

申请日：2007-07-10

申请人： Tim Haulick ,  Gerhard Schmidt ,  Harald Lenhardt

发明人： Tim Haulick ,  Gerhard Schmidt ,  Harald Lenhardt

IPC分类号： H04B15/00

CPC分类号： H04M9/082

摘要： The present invention relates to a method for processing a microphone signal and a system for audio signal processing with feedback reduction. The method comprises processing the microphone signal by an adaptive feedback suppression filtering means; processing the microphone signal by an adaptive feedback compensation filtering means; and wherein the processing by the adaptive feedback suppression filtering means is performed in dependence on the processing by the adaptive feedback compensation filtering means. The system comprises an adaptive feedback compensation filtering means; and an adaptive feedback suppression filtering means configured to be adapted on the basis of the adapted filter coefficients of the adaptive feedback compensation filtering means.

摘要翻译： 本发明涉及一种用于处理麦克风信号的方法和用于具有反馈减少的音频信号处理系统。 该方法包括通过自适应反馈抑制滤波装置处理麦克风信号; 通过自适应反馈补偿滤波装置处理麦克风信号; 并且其中根据所述自适应反馈补偿滤波装置的处理执行由所述自适应反馈抑制滤波装置进行的处理。 该系统包括自适应反馈补偿滤波装置; 以及自适应反馈抑制滤波装置，被配置为基于所述自适应反馈补偿滤波装置的适应的滤波器系数来适配。

公开(公告)号：US20080015845A1

公开(公告)日：2008-01-17

申请号：US11776432

申请日：2007-07-11

申请人： Gerhard Schmidt ,  Tim Haulick ,  Harald Lenhardt

发明人： Gerhard Schmidt ,  Tim Haulick ,  Harald Lenhardt

IPC分类号： G10L11/00 ,  H04B15/00

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

摘要： A system compensating audio signal components in a communication system is disclosed, the method comprising the steps of detecting, by a microphone, a sound signal, the sound signal comprising audio signal components resulting from reproducing an audio signal of an audio source, the sound signal further comprising speech signal components corresponding to a speech signal from a person, filtering the sound signal to whiten the sound signal, compensating the audio signal components in the whitened sound signal, and removing the whitening of the compensated sound signal, where 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： 公开了一种在通信系统中补偿音频信号分量的系统，该方法包括以下步骤：由麦克风检测声音信号，该声音信号包括由音频源的音频信号重现而产生的音频信号分量，声音信号 还包括对应于来自人的语音信号的语音信号分量，对所述声音信号进行滤波以使所述声音信号变白，补偿所述白化声音信号中的音频信号分量，以及去除所述补偿声音信号的白化， 使用至少两个滤波器以交替方式执行音频信号，每个滤波器使用时间依赖滤波器系数。

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。

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。

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。