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1. 发明授权

US08275150B2 Apparatus for processing an audio signal and method thereof 有权
标题翻译：用于处理音频信号的装置及其方法
公开(公告)号：US08275150B2
公开(公告)日：2012-09-25
申请号：US12511589
申请日：2009-07-29
申请人： Jong Ha Moon , Hyen O Oh , Joon Il Lee , Myung Hoon Lee , Yang Won Jung , Alexis Favrot , Christof Faller
发明人： Jong Ha Moon , Hyen O Oh , Joon Il Lee , Myung Hoon Lee , Yang Won Jung , Alexis Favrot , Christof Faller
IPC分类号： H04B15/00
CPC分类号： H03G9/025 , H03G7/007 , H03G9/005
摘要： An apparatus for processing an audio signal and method thereof are disclosed, by which a local dynamic range of an audio signal can be adaptively normalized as well as a maximum dynamic range of the audio signal. The present invention includes receiving a signal, by an audio processing apparatus; computing a long-term power and a short-term power by estimating power of the signal; generating a slow gain based on the long-term power; generating a fast gain based on the short-term power; obtaining a final gain by combining the slow gain and the fast gain; and, modifying the signal using the final gain.
摘要翻译：公开了一种用于处理音频信号的装置及其方法，通过该装置可以将音频信号的局部动态范围自适应地归一化以及音频信号的最大动态范围。本发明包括由音频处理装置接收信号; 通过估计信号的功率来计算长期功率和短期功率; 基于长期权力产生缓慢的收益; 基于短期电力产生快速增长; 通过组合慢增益和快速增益获得最终增益; 并使用最终增益修改信号。

2. 发明申请

US20100085117A1 APPARATUS FOR PROCESSING AN AUDIO SIGNAL AND METHOD THEREOF 有权
标题翻译：用于处理音频信号的装置及其方法
公开(公告)号：US20100085117A1
公开(公告)日：2010-04-08
申请号：US12511669
申请日：2009-07-29
申请人： Jong Ha MOON , Hyen O. Oh , Joon Il Lee , Myung Hoon Lee , Yang Won Jung , Alexis Favrot , Christof Faller
发明人： Jong Ha MOON , Hyen O. Oh , Joon Il Lee , Myung Hoon Lee , Yang Won Jung , Alexis Favrot , Christof Faller
IPC分类号： H03F1/26
CPC分类号： H03G9/025 , H03G7/007 , H03G9/005
摘要： An apparatus for processing an audio signal and method thereof are disclosed, by which a local dynamic range of an audio signal can be adaptively normalized as well as a maximum dynamic range of the audio signal. The present invention includes receiving, by an audio processing apparatus, a signal, and feedback information estimated based on a normalizing gain; generating a noise estimation based on the signal; computing a gain filter for noise canceling, based on the noise estimation and the signal; and, obtaining a restricted gain filter by applying the feedback information to the gain filter.
摘要翻译：公开了一种用于处理音频信号的装置及其方法，通过该装置可以将音频信号的局部动态范围自适应地归一化以及音频信号的最大动态范围。本发明包括由音频处理装置接收基于标准化增益估计的信号和反馈信息; 基于该信号生成噪声估计; 基于噪声估计和信号计算噪声消除的增益滤波器; 并且通过将所述反馈信息应用于所述增益滤波器来获得受限增益滤波器。

3. 发明授权

US08275154B2 Apparatus for processing an audio signal and method thereof 有权
标题翻译：用于处理音频信号的装置及其方法
公开(公告)号：US08275154B2
公开(公告)日：2012-09-25
申请号：US12511669
申请日：2009-07-29
申请人： Jong Ha Moon , Hyen O Oh , Joon Il Lee , Myung Hoon Lee , Yang Won Jung , Alexis Favrot , Christof Faller
发明人： Jong Ha Moon , Hyen O Oh , Joon Il Lee , Myung Hoon Lee , Yang Won Jung , Alexis Favrot , Christof Faller
IPC分类号： H03G3/00
CPC分类号： H03G9/025 , H03G7/007 , H03G9/005
摘要： An apparatus for processing an audio signal and method thereof are disclosed, by which a local dynamic range of an audio signal can be adaptively normalized as well as a maximum dynamic range of the audio signal. The present invention includes receiving, by an audio processing apparatus, a signal, and feedback information estimated based on a normalizing gain; generating a noise estimation based on the signal; computing a gain filter for noise canceling, based on the noise estimation and the signal; and, obtaining a restricted gain filter by applying the feedback information to the gain filter.
摘要翻译：公开了一种用于处理音频信号的装置及其方法，通过该装置可以将音频信号的局部动态范围自适应地归一化以及音频信号的最大动态范围。本发明包括由音频处理装置接收基于标准化增益估计的信号和反馈信息; 基于该信号生成噪声估计; 基于噪声估计和信号计算噪声消除的增益滤波器; 并且通过将所述反馈信息应用于所述增益滤波器来获得受限增益滤波器。

4. 发明申请

US20100061566A1 APPARATUS FOR PROCESSING AN AUDIO SIGNAL AND METHOD THEREOF 有权
标题翻译：用于处理音频信号的装置及其方法
公开(公告)号：US20100061566A1
公开(公告)日：2010-03-11
申请号：US12511589
申请日：2009-07-29
申请人： Jong Ha Moon , Hyen O. Oh , Joon Il Lee , Myung Hoon Lee , Yang Won Jung , Alexis Favrot , Christof Faller
发明人： Jong Ha Moon , Hyen O. Oh , Joon Il Lee , Myung Hoon Lee , Yang Won Jung , Alexis Favrot , Christof Faller
IPC分类号： G10K11/16 , H03G3/00
CPC分类号： H03G9/025 , H03G7/007 , H03G9/005
摘要： An apparatus for processing an audio signal and method thereof are disclosed, by which a local dynamic range of an audio signal can be adaptively normalized as well as a maximum dynamic range of the audio signal. The present invention includes receiving a signal, by an audio processing apparatus; computing a long-term power and a short-term power by estimating power of the signal; generating a slow gain based on the long-term power; generating a fast gain based on the short-term power; obtaining a final gain by combining the slow gain and the fast gain; and, modifying the signal using the final gain.
摘要翻译：公开了一种用于处理音频信号的装置及其方法，通过该装置可以将音频信号的局部动态范围自适应地归一化以及音频信号的最大动态范围。本发明包括由音频处理装置接收信号; 通过估计信号的功率来计算长期功率和短期功率; 基于长期权力产生缓慢的收益; 基于短期电力产生快速增长; 通过组合慢增益和快速增益获得最终增益; 并使用最终增益修改信号。

5. 发明授权

US08538043B2 Apparatus for processing an audio signal and method thereof 有权
标题翻译：用于处理音频信号的装置及其方法
公开(公告)号：US08538043B2
公开(公告)日：2013-09-17
申请号：US12719489
申请日：2010-03-08
申请人： Hyen-O Oh , Alexis Favrot , Christof Faller , Myung Hoon Lee , Jong Ha Moon
发明人： Hyen-O Oh , Alexis Favrot , Christof Faller , Myung Hoon Lee , Jong Ha Moon
IPC分类号： H03G1/02
CPC分类号： G10K11/1784 , G10K11/178 , G10L21/0208 , H03G1/02 , H03G3/001 , H03G5/165 , H03G7/002 , H03G9/005 , H03G9/025
摘要： A method of processing an audio signal is disclosed. The present invention includes receiving, by an audio processing apparatus, an input signal; receiving user gain input; generating a linear gain factor and a non-linear gain factor using the user gain input; modifying the non-linear gain factor using absolute threshold of hearing and power of the input signal to generate a modified non-linear gain factor; and, applying the linear gain factor and the modified non-linear gain factor to the audio signal.
摘要翻译：公开了一种处理音频信号的方法。本发明包括由音频处理装置接收输入信号; 接收用户增益输入; 使用用户增益输入产生线性增益因子和非线性增益因子; 使用输入信号的听觉和功率的绝对阈值来修改非线性增益因子以产生修改的非线性增益因子; 以及将线性增益因子和修改的非线性增益因子应用于音频信号。

6. 发明授权

US08515087B2 Apparatus for processing an audio signal and method thereof 有权
标题翻译：用于处理音频信号的装置及其方法
公开(公告)号：US08515087B2
公开(公告)日：2013-08-20
申请号：US12719388
申请日：2010-03-08
申请人： Hyen-O Oh , Alexis Favrot , Christof Faller , Myung Hoon Lee , Jong Ha Moon
发明人： Hyen-O Oh , Alexis Favrot , Christof Faller , Myung Hoon Lee , Jong Ha Moon
IPC分类号： G10K11/1784 , H03G5/165 , H03G3/001 , H03G1/02 , H03G7/002 , G10K11/1788 , G10L21/0208 , G10K11/178 , H03G5/16 , H03G3/00 , H03G7/00
CPC分类号： G10K11/1784 , G10K11/178 , G10L21/0208 , H03G1/02 , H03G3/001 , H03G5/165 , H03G7/002 , H03G9/005 , H03G9/025
摘要： A method of processing an audio signal is disclosed. The present invention includes receiving, by an audio processing apparatus, an input signal; estimating indicator function using a signal power of the input signal; obtaining an adapted filter using the indicator function and an equalization filter; and, generating an output signal by applying the adapted filter to the input signal.
摘要翻译：公开了一种处理音频信号的方法。本发明包括由音频处理装置接收输入信号; 使用输入信号的信号功率来估计指标函数; 使用所述指示器功能获得适配滤波器和均衡滤波器; 并且通过将适配滤波器应用于输入信号来产生输出信号。

7. 发明申请

US20100296669A1 APPARATUS FOR PROCESSING AN AUDIO SIGNAL AND METHOD THEREOF 有权
标题翻译：用于处理音频信号的装置及其方法
公开(公告)号：US20100296669A1
公开(公告)日：2010-11-25
申请号：US12719489
申请日：2010-03-08
申请人： Hyen-O Oh , Alexis Favrot , Christof Faller , Myung Hoon Lee , Jong Ha Moon
发明人： Hyen-O Oh , Alexis Favrot , Christof Faller , Myung Hoon Lee , Jong Ha Moon
IPC分类号： H03G3/02
CPC分类号： G10K11/1784 , G10K11/178 , G10L21/0208 , H03G1/02 , H03G3/001 , H03G5/165 , H03G7/002 , H03G9/005 , H03G9/025
摘要： A method of processing an audio signal is disclosed. The present invention includes receiving, by an audio processing apparatus, an input signal; receiving user gain input; generating a linear gain factor and a non-linear gain factor using the user gain input; modifying the non-linear gain factor using absolute threshold of hearing and power of the input signal to generate a modified non-linear gain factor; and, applying the linear gain factor and the modified non-linear gain factor to the audio signal.
摘要翻译：公开了一种处理音频信号的方法。本发明包括由音频处理装置接收输入信号; 接收用户增益输入; 使用用户增益输入产生线性增益因子和非线性增益因子; 使用输入信号的听觉和功率的绝对阈值来修改非线性增益因子以产生修改的非线性增益因子; 以及将线性增益因子和修改的非线性增益因子应用于音频信号。

8. 发明授权

US08462958B2 Apparatus and method for computing filter coefficients for echo suppression 有权
标题翻译：用于计算用于回波抑制的滤波器系数的装置和方法
公开(公告)号：US08462958B2
公开(公告)日：2013-06-11
申请号：US12864890
申请日：2009-01-16
申请人： Fabian Kuech , Markus Kallinger , Christof Faller , Alexis Favrot
发明人： Fabian Kuech , Markus Kallinger , Christof Faller , Alexis Favrot
IPC分类号： H04B3/20
CPC分类号： H04M9/082 , G10L21/0208 , G10L2021/02082 , H04B3/237
摘要： A preferred embodiment of an apparatus for computing filter coefficients for an adaptive filter for filtering a microphone signal so as to suppress an echo due to a loudspeaker signal includes an extractor for extracting a stationary component signal or a non-stationary component signal from the loudspeaker signal or from a signal derived from the loudspeaker signal, and a computer for computing the filter coefficients for the adaptive filter on the basis of the extracted stationary component signal or the extracted non-stationary component signal.
摘要翻译：用于计算用于滤波麦克风信号的滤波器系数的滤波器系数的装置的优选实施例，以便抑制由于扬声器信号引起的回波，包括用于从扬声器信号中提取静止分量信号或非平稳分量信号的提取器或者根据从扬声器信号得到的信号，以及计算机，用于基于所提取的固定分量信号或所提取的非平稳分量信号来计算用于自适应滤波器的滤波器系数。

9. 发明申请

US20110044461A1 APPARATUS AND METHOD FOR COMPUTING CONTROL INFORMATION FOR AN ECHO SUPPRESSION FILTER AND APPARATUS AND METHOD FOR COMPUTING A DELAY VALUE 有权
标题翻译：用于计算ECHO抑制过滤器的控制信息的装置和方法以及计算延迟值的装置和方法
公开(公告)号：US20110044461A1
公开(公告)日：2011-02-24
申请号：US12864240
申请日：2009-01-12
申请人： Fabian Kuech , Markus Kallinger , Christof Faller , Alexis Favrot
发明人： Fabian Kuech , Markus Kallinger , Christof Faller , Alexis Favrot
IPC分类号： H04B3/20 , H03G3/00
CPC分类号： H04M9/082
摘要： An embodiment of an apparatus for computing control information for a suppression filter for filtering a second audio signal to suppress an echo based on a first audio signal includes a computer having a value determiner for determining at least one energy-related value for a band-pass signal of at least two temporally successive data blocks of at least one signal of a group of signals. The computer further includes a mean value determiner for determining at least one mean value of the at least one determined energy-related value for the band-pass signal. The computer further includes a modifier for modifying the at least one energy-related value for the band-pass signal on the basis of the determined mean value for the band-pass signal. The computer further includes a control information computer for computing the control information for the suppression filter on the basis of the at least one modified energy-related value.
摘要翻译：用于计算用于滤波第二音频信号以抑制基于第一音频信号的回波的抑制滤波器的控制信息的装置的实施例包括具有用于确定带通的至少一个能量相关值的值确定器的计算机一组信号的至少一个信号的至少两个时间上连续的数据块的信号。该计算机还包括一个平均值确定器，用于确定该带通信号的至少一个确定的能量相关值的至少一个平均值。该计算机还包括修改器，用于基于确定的带通信号的平均值修改带通信号的至少一个能量相关值。计算机还包括控制信息计算机，用于基于至少一个修改的能量相关值来计算抑制滤波器的控制信息。

10. 发明授权

US08731207B2 Apparatus and method for computing control information for an echo suppression filter and apparatus and method for computing a delay value 有权
标题翻译：用于计算回波抑制滤波器的控制信息的装置和方法以及用于计算延迟值的装置和方法
公开(公告)号：US08731207B2
公开(公告)日：2014-05-20
申请号：US12864240
申请日：2009-01-12
申请人： Fabian Kuech , Markus Kallinger , Christof Faller , Alexis Favrot
发明人： Fabian Kuech , Markus Kallinger , Christof Faller , Alexis Favrot
IPC分类号： H04B3/20 , H03G3/00
CPC分类号： H04M9/082
摘要： An embodiment of an apparatus for computing control information for a suppression filter for filtering a second audio signal to suppress an echo based on a first audio signal includes a computer having a value determiner for determining at least one energy-related value for a band-pass signal of at least two temporally successive data blocks of at least one signal of a group of signals. The computer further includes a mean value determiner for determining at least one mean value of the at least one determined energy-related value for the band-pass signal. The computer further includes a modifier for modifying the at least one energy-related value for the band-pass signal on the basis of the determined mean value for the band-pass signal. The computer further includes a control information computer for computing the control information for the suppression filter on the basis of the at least one modified energy-related value.
摘要翻译：用于计算用于滤波第二音频信号以抑制基于第一音频信号的回波的抑制滤波器的控制信息的装置的实施例包括具有用于确定带通的至少一个能量相关值的值确定器的计算机一组信号的至少一个信号的至少两个时间上连续的数据块的信号。该计算机还包括一个平均值确定器，用于确定该带通信号的至少一个确定的能量相关值的至少一个平均值。该计算机还包括修改器，用于基于确定的带通信号的平均值修改带通信号的至少一个能量相关值。计算机还包括控制信息计算机，用于基于至少一个修改的能量相关值来计算抑制滤波器的控制信息。

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