公开(公告)号：US09491537B2

公开(公告)日：2016-11-08

申请号：US13559093

申请日：2012-07-26

申请人： Markus Christoph

发明人： Markus Christoph

IPC分类号： H04R3/02 ,  H04R3/00

CPC分类号： H04R3/00

摘要： A noise reducing sound reproduction system and method may be operable with an input signal supplied to a loudspeaker by which it is acoustically radiated. The signal radiated by the loudspeaker may be received by a microphone that is acoustically coupled to the loudspeaker via a secondary path and that provides a microphone output signal. From the microphone output signal a useful-signal can be subtracted to generate a filter input signal. The filter input signal is filtered in an active noise reduction filter to generate an error signal, and the useful-signal is subtracted from the error signal to generate the loudspeaker input signal. In addition, the useful-signal is filtered by one or more spectrum shaping filters prior to subtraction from the microphone output signal or the loudspeaker input signal or both.

摘要翻译： 噪声降低声音再现系统和方法可以通过提供给扬声器的输入信号来操作，通过声音辐射它。 由扬声器辐射的信号可以由麦克风接收，该麦克风经由辅助路径与扬声器声学耦合，并提供麦克风输出信号。 从麦克风输出信号可以减去有用信号以产生滤波器输入信号。 滤波器输入信号在有源噪声降低滤波器中被滤波以产生误差信号，并且从误差信号中减去有用信号以产生扬声器输入信号。 另外，在从麦克风输出信号或扬声器输入信号或两者中减去之前，有用信号被一个或多个频谱整形滤波器滤波。

公开(公告)号：US20150373476A1

公开(公告)日：2015-12-24

申请号：US14720494

申请日：2015-05-22

申请人： Markus Christoph ,  Leander Scholz

发明人： Markus Christoph ,  Leander Scholz

IPC分类号： H04S7/00

CPC分类号： H04S7/302 ,  H04R2499/13 ,  H04S7/301

摘要： A method is provided for optimizing acoustic localization at one or more listening positions in a listening environment such as, but not limited to, a vehicle passenger compartment. The method includes generating a sound field with a group of loudspeakers assigned to at least one of the listening positions, the group of loudspeakers including first and second loudspeakers, where each loudspeaker is connected to a respective audio channel; calculating filter coefficients for a phase equalization filter; configuring a phase response for the phase equalization filter such that binaural phase difference (Δφmn) at the at least one of the listening positions or a mean binaural phase difference (mΔφmn) averaged over the listening positions is reduced in a predefined frequency range; and filtering the audio channel connected to the second loudspeaker with the phase equalization filter.

摘要翻译： 提供一种用于优化听音环境中的一个或多个听音位置处的声学定位的方法，例如但不限于车辆乘客舱。 该方法包括：生成具有分配给至少一个收听位置的一组扬声器的声场，该扬声器组包括第一和第二扬声器，其中每个扬声器连接到相应的音频通道; 计算相位均衡滤波器的滤波器系数; 配置相位均衡滤波器的相位响应，使得在收听位置处的至少一个收听位置处的双耳相位差（＆Dgr;＆phgr; mn）或在收听位置上平均的平均双耳相位差（m＆Dgr;＆phgr; mn）被减小 在预定义的频率范围内; 并用相位均衡滤波器对连接到第二扬声器的音频信道进行滤波。

公开(公告)号：US09194413B2

公开(公告)日：2015-11-24

申请号：US13120200

申请日：2009-08-28

申请人： Markus Christoph ,  Michael Kaupp ,  Roland Seitz ,  Richard Baur ,  Georg Mascha ,  Markus Breitenberger ,  Dag-Olof Kardell ,  Boris Adam ,  Thomas Klierl ,  Rolf Bechtle ,  Frank Ocker ,  Adam Balogh ,  Christian Plankl ,  Werner Menzel

发明人： Markus Christoph ,  Michael Kaupp ,  Roland Seitz ,  Richard Baur ,  Georg Mascha ,  Markus Breitenberger ,  Dag-Olof Kardell ,  Boris Adam ,  Thomas Klierl ,  Rolf Bechtle ,  Frank Ocker ,  Adam Balogh ,  Christian Plankl ,  Werner Menzel

IPC分类号： B25G3/16 ,  F16B7/20 ,  F16B21/02 ,  G01D11/30

CPC分类号： F16B21/02 ,  G01D11/30 ,  Y10T29/49947 ,  Y10T403/7007

摘要： A fixing device (200) for fixing in an opening in a wall of a vehicle includes a support element (210) with at least one support lug (220). The fixing device (200) also includes a retaining element (230) with at least one retaining arm (240) for fixing the fixing device (200) to the wall. To fix the fixing device (200) in relation to the support element (210), the retaining element (230) runs through the support element (210) and can rotate, the support lug (220) being designed to block the rotation of the support element (210).

摘要翻译： 用于固定在车辆的墙壁中的开口中的固定装置（200）包括具有至少一个支撑凸耳（220）的支撑元件（210）。 定影装置（200）还包括具有用于将定影装置（200）固定到壁上的至少一个固定臂（240）的保持元件（230）。 为了相对于支撑元件（210）固定固定装置（200），保持元件（230）延伸穿过支撑元件（210）并且可旋转，支撑凸耳（220）被设计成阻止固定装置 支撑元件（210）。

公开(公告)号：US09049533B2

公开(公告)日：2015-06-02

申请号：US12917604

申请日：2010-11-02

申请人： Markus Christoph ,  Leander Scholz

发明人： Markus Christoph ,  Leander Scholz

IPC分类号： H04R1/40 ,  H04S7/00

CPC分类号： H04S7/302 ,  H04R2499/13 ,  H04S7/301

摘要： A method is provided for optimizing acoustic localization at one or more listening positions in a listening environment such as, but not limited to, a vehicle passenger compartment. The method includes generating a sound field with a group of loudspeakers assigned to at least one of the listening positions, the group of loudspeakers including first and second loudspeakers, where each loudspeaker is connected to a respective audio channel; calculating filter coefficients for a phase equalization filter; configuring a phase response for the phase equalization filter such that binaural phase difference (Δφmn) at the at least one of the listening positions or a mean binaural phase difference (mΔφmn) averaged over the listening positions is reduced in a predefined frequency range; and filtering the audio channel connected to the second loudspeaker with the phase equalization filter.

摘要翻译： 提供一种用于优化听音环境中的一个或多个听音位置处的声学定位的方法，例如但不限于车辆乘客舱。 该方法包括：生成具有分配给至少一个收听位置的一组扬声器的声场，该扬声器组包括第一和第二扬声器，其中每个扬声器连接到相应的音频通道; 计算相位均衡滤波器的滤波器系数; 配置相位均衡滤波器的相位响应，使得在收听位置处的至少一个聆听位置处的双耳相位差（＆Dgr;＆phgr; mn）或在收听位置上的平均双耳相位差（m＆Dgr;＆phgr; mn）被平均化 在预定义的频率范围内; 并用相位均衡滤波器对连接到第二扬声器的音频信道进行滤波。

公开(公告)号：US09014386B2

公开(公告)日：2015-04-21

申请号：US13372097

申请日：2012-02-13

申请人： Markus Christoph

发明人： Markus Christoph

IPC分类号： A61F11/06 ,  H04B15/00 ,  H03G3/32

CPC分类号： H03G3/32

摘要： A system is provided for enhancing a sound signal produced by an audio system in a listening environment by compensating for ambient noise in the listening environment. The system receives an electrical sound signal and generates a sound output therefrom. A total sound signal is sensed representative of the total sound level in the environment, where the total sound level includes the sound output and the ambient noise. The system extracts an ambient noise signal representative of the ambient noise from the total sound signal, using an adaptive filter with an adaptive step size, in response to the total sound signal and to a reference signal derived from the electrical sound signal. The system generates a control signal in response to the ambient noise signal and adjusts the sound output of the audio system to compensate for the ambient noise level in response to the control signal.

摘要翻译： 提供一种系统，用于通过补偿听音环境中的环境噪声来增强听音环境中的音频系统产生的声音信号。 系统接收电声信号并从中产生声音输出。 感测到的总声音信号代表环境中的总声级，其中总声级包括声音输出和环境噪声。 使用具有自适应步长的自适应滤波器，响应于总声音信号和从电声信号导出的参考信号，从总声音信号中提取表示环境噪声的环境噪声信号。 该系统响应于环境噪声信号产生控制信号，并且响应于控制信号调整音频系统的声音输出以补偿环境噪声电平。

公开(公告)号：US08718286B2

公开(公告)日：2014-05-06

申请号：US11761786

申请日：2007-06-12

申请人： Georg Spielbauer ,  Max Granger ,  Markus Christoph

发明人： Georg Spielbauer ,  Max Granger ,  Markus Christoph

IPC分类号： H04R29/00

CPC分类号： H04R29/00 ,  H04R2499/13

摘要： A testing system tests an audio connection between an audio source and a loudspeaker. The system includes a loudspeaker that converts a reference signal into a sound. An adaptive filter processes the reference signal to minimize an error signal. A decision circuit analyzes the error signal and the received signal to determine signal correlation. When the signals are not correlated, a defect is detected.

摘要翻译： 测试系统测试音频源和扬声器之间的音频连接。 该系统包括将参考信号转换成声音的扬声器。 自适应滤波器处理参考信号以最小化误差信号。 判决电路分析误差信号和接收信号，以确定信号相关性。 当信号不相关时，检测到缺陷。

公开(公告)号：US08571855B2

公开(公告)日：2013-10-29

申请号：US11185534

申请日：2005-07-20

申请人： Markus Christoph

发明人： Markus Christoph

IPC分类号： G10L21/02 ,  A61F11/06 ,  H04B15/00

CPC分类号： H03G3/32 ,  H03G5/165 ,  H04R29/007 ,  H04R2227/001 ,  H04R2499/13

摘要： A system and method for enhancing the sound signal produced by an audio system in a listening environment by compensating for ambient sound in the listening environment, comprises producing an audio sound in the time domain from an electrical sound signal in the time domain. The electrical sound signal in the time domain is transformed into an electrical sound signal in the frequency domain and the electrical sound signal in the frequency domain is retransformed into an audio sound in the time domain. The total sound level in the environment is measured and a signal representative thereof is generated. The audio sound signal and the total sound signal are processed to extract a signal representing the ambient sound level within the environment, and equalization is performed in the frequency domain to adjust the output from the audio sound signal to compensate for the ambient noise level.

摘要翻译： 一种用于通过补偿听觉环境中的环境声音来增强听觉环境中的音频系统产生的声音信号的系统和方法，包括在时域中从电声信号产生音频声音。 时域中的电声信号被变换为频域中的电声信号，频域中的电声信号在时域中被再次转换成声音。 测量环境中的总声级并产生代表其的信号。 处理音频声音信号和总声音信号以提取表示环境中的环境声级的信号，并且在频域中执行均衡以调整来自音频声音信号的输出以补偿环境噪声水平。

公开(公告)号：US20130028436A1

公开(公告)日：2013-01-31

申请号：US13559093

申请日：2012-07-26

申请人： Markus Christoph

发明人： Markus Christoph

IPC分类号： H04R3/02

CPC分类号： H04R3/00

摘要： A noise reducing sound reproduction system and method may be operable with an input signal supplied to a loudspeaker by which it is acoustically radiated. The signal radiated by the loudspeaker may be received by a microphone that is acoustically coupled to the loudspeaker via a secondary path and that provides a microphone output signal. From the microphone output signal a useful-signal can be subtracted to generate a filter input signal. The filter input signal is filtered in an active noise reduction filter to generate an error signal, and the useful-signal is subtracted from the error signal to generate the loudspeaker input signal. In addition, the useful-signal is filtered by one or more spectrum shaping filters prior to subtraction from the microphone output signal or the loudspeaker input signal or both.

摘要翻译： 噪声降低声音再现系统和方法可以通过提供给扬声器的输入信号来操作，通过声音辐射它。 由扬声器辐射的信号可以由麦克风接收，该麦克风经由辅助路径与扬声器声学耦合，并提供麦克风输出信号。 从麦克风输出信号可以减去有用信号以产生滤波器输入信号。 滤波器输入信号在有源噪声降低滤波器中被滤波以产生误差信号，并且从误差信号中减去有用信号以产生扬声器输入信号。 另外，在从麦克风输出信号或扬声器输入信号或两者中减去之前，有用信号被一个或多个频谱整形滤波器滤波。

公开(公告)号：US08340317B2

公开(公告)日：2012-12-25

申请号：US10842056

申请日：2004-05-06

申请人： Gerhard Pfaffinger ,  Markus Christoph

发明人： Gerhard Pfaffinger ,  Markus Christoph

IPC分类号： H04B15/00 ,  H04R27/00 ,  H04R3/00

CPC分类号： H04S7/30 ,  H04R2499/13 ,  H04S7/301

摘要： An audio processing system is provided for controlling the acoustics of a loudspeaker-room system. The loudspeaker-room system having a listening room and loudspeakers located in said listening room, and transfer functions with linear and non-linear components. The audio processing system comprises a compensator with a transfer function for obtaining at least two compensated signals from the input signals. The transfer functions of the compensator may include linear and non-linear components and are inverse to the transfer functions of the loudspeaker-room system to the extent that a desired overall transfer function is established.

摘要翻译： 提供一种用于控制扬声器室系统的声学的音频处理系统。 扬声器室系统具有听音室和位于所述听音室中的扬声器，并且具有线性和非线性分量的传递功能。 音频处理系统包括具有传递函数的补偿器，用于从输入信号获得至少两个补偿信号。 补偿器的传递函数可以包括线性和非线性分量，并且在建立期望的整体传递函数的程度上与扬声器室系统的传递函数相反。

公开(公告)号：US20120154037A1

公开(公告)日：2012-06-21

申请号：US13333468

申请日：2011-12-21

申请人： Gerhard Pfaffinger ,  Franz Lorenz ,  Stefan Zuckmantel ,  Markus Christoph

发明人： Gerhard Pfaffinger ,  Franz Lorenz ,  Stefan Zuckmantel ,  Markus Christoph

IPC分类号： H03G3/20

CPC分类号： H03G3/20 ,  H03F3/181 ,  H03F2200/03 ,  H03F2200/165 ,  H03G7/007

摘要： The audio amplifier includes a variable gain amplifier receiving the input audio signal and providing the output signal, whereby the output signal corresponds to the input signal amplified by a limiter gain. The audio amplifier further includes a limiter gain calculation unit, thus the input signal is amplified by the limiter gain. A control unit receives a signal representative of the input signal and is configured to estimate, based on a mathematical model, the input current or the total output current of the audio amplifier thus providing an estimated current signal corresponding to (and resulting from) the output signal, whereby the limiter gain calculation unit is configured to calculate, dependent on the estimation, the limiter gain such that the actual input current or the total output current of the audio amplifier does not exceed a threshold current value.

摘要翻译： 音频放大器包括可变增益放大器，其接收输入音频信号并提供输出信号，由此输出信号对应于通过限制器增益放大的输入信号。 音频放大器还包括限幅器增益计算单元，因此输入信号被限幅器增益放大。 控制单元接收表示输入信号的信号，并且被配置为基于数学模型来估计音频放大器的输入电流或总输出电流，从而提供对应于输出（并由其产生）的估计电流信号 信号，由此限制器增益计算单元被配置为根据估计来计算限幅器增益，使得音频放大器的实际输入电流或总输出电流不超过阈值电流值。