公开(公告)号：US08965002B2

公开(公告)日：2015-02-24

申请号：US13114746

申请日：2011-05-24

申请人： Kwang-Cheol Oh ,  Jeong-Su Kim ,  Jae-Hoon Jeong ,  So-Young Jeong

发明人： Kwang-Cheol Oh ,  Jeong-Su Kim ,  Jae-Hoon Jeong ,  So-Young Jeong

IPC分类号： H04R3/00 ,  G10L21/0208 ,  G10L21/0216

CPC分类号： G10L21/0208 ,  G10L2021/02166

摘要： An audio quality enhancing apparatus and method is provided in which a microphone array has a non-uniform configuration and thus a beam pattern of a desired direction is obtained in a wide range of frequencies including higher frequency bands and lower frequency bands even when the microphone array is relatively small. The audio quality enhancing apparatus includes at least three microphones which are disposed in a non-uniform configuration, a frequency conversion unit configured to transform acoustic signals input from the at least three microphones to acoustic signals of frequency domain; a band division and merging unit configured to divide frequencies of the transformed acoustic signals into bands based on intervals between the at least three microphones and to merge the acoustic signals in the frequency domain into signals of two channels based on the divided frequency bands; and a two channel beamforming unit configured to reduce noise of signals including input from a direction other than the direction of a target sound by performing beamforming on the signals of the two channels and to output the noise-reduced signals.

摘要翻译： 提供了一种音频质量增强装置和方法，其中麦克风阵列具有不均匀的配置，因此即使在麦克风阵列中也可以在包括较高频带和较低频带的宽频率范围内获得期望方向的波束图案 比较小 音频质量提高装置包括以非均匀配置布置的至少三个麦克风，被配置为将从至少三个麦克风输入的声信号变换为频域的声信号的频率转换单元; 频带划分和合并单元，被配置为基于所述至少三个麦克风之间的间隔将所述经变换的声信号的频率划分成频带，并且基于所划分的频带将频域中的声信号合并成两个信道的信号; 以及双通道波束形成单元，被配置为通过对所述两个通道的信号执行波束形成并且输出所述降噪信号，来减少包括来自目标声音的方向的方向的输入的信号的噪声。

公开(公告)号：US08665305B2

公开(公告)日：2014-03-04

申请号：US13181568

申请日：2011-07-13

申请人： Jae-Hoon Jeong ,  Jeong-Su Kim ,  Kwang-Cheol Oh ,  So-Young Jeong

发明人： Jae-Hoon Jeong ,  Jeong-Su Kim ,  Kwang-Cheol Oh ,  So-Young Jeong

IPC分类号： H04N7/14

CPC分类号： H04N7/14 ,  H04N7/147 ,  H04R3/005 ,  H04R2410/01 ,  H04R2430/03 ,  H04R2499/11

摘要： A microphone array apparatus is provided. The microphone array apparatus includes a plurality of first type microphones which are disposed to be hidden in a direction of a target source and surrounded by a cover that passes acoustic signals therethrough, and a plurality of second type microphones which are disposed at both sides of the plurality of first type microphones.

摘要翻译： 提供麦克风阵列装置。 麦克风阵列装置包括多个第一类型麦克风，其被设置为隐藏在目标源的方向上并且被传导声信号的盖包围，并且多个第二类型麦克风被布置在 多个第一类麦克风。

公开(公告)号：US20120179458A1

公开(公告)日：2012-07-12

申请号：US13286369

申请日：2011-11-01

申请人： Kwang-Cheol Oh ,  Jeong-Su Kim ,  Jae-Hoon Jeong ,  So-Young Jeong

发明人： Kwang-Cheol Oh ,  Jeong-Su Kim ,  Jae-Hoon Jeong ,  So-Young Jeong

IPC分类号： G10L21/02

CPC分类号： G10L21/0208 ,  G10L25/84 ,  G10L2021/02166

摘要： Provided are an apparatus and method for estimating noise that changes with time. The apparatus may calculate a speech absence probability that indicates the possibility of the absence of speech in each frequency component of an input acoustic signal, may discriminate between a speech-dominant region and a noise region from the acoustic signals based on the speech absence probability, and may estimate noise according to the discrimination result.

摘要翻译： 提供了一种用于估计随时间变化的噪声的装置和方法。 该装置可以计算表示在输入声信号的每个频率分量中不存在语音的可能性的语音缺失概率，可以基于语音不存在概率从声信号中区分语音主导区域和噪声区域， 并且可以根据判别结果估计噪声。

公开(公告)号：US09407990B2

公开(公告)日：2016-08-02

申请号：US12892078

申请日：2010-09-28

申请人： Kyu-Hong Kim ,  So-Young Jeong ,  Kwang-Cheol Oh ,  Jae-Hoon Jeong

发明人： Kyu-Hong Kim ,  So-Young Jeong ,  Kwang-Cheol Oh ,  Jae-Hoon Jeong

IPC分类号： H04R3/00 ,  H04R29/00

CPC分类号： H04R3/005 ,  H04R29/004 ,  H04R2201/401

摘要： An apparatus and method for calibrating gain difference between microphones included in a microphone array are provided. In the gain calibrating apparatus, weights for each frequency component of the acoustic signals, which have been converted into the signals in the frequency domain are calculated. The weights are used to calibrate the acoustic signals such that the plurality of acoustic signals each have the same amplitude while the acoustic signals maintain their individual phase. The amplitudes of the acoustic signals are calibrated by use of the calculated weights. The gain calibrating apparatus calibrates gain in real time while calculating weights for frequency components of the frame of acoustic signals in real time.

摘要翻译： 提供了一种用于校准包括在麦克风阵列中的麦克风之间的增益差的装置和方法。 在增益校准装置中，计算已被转换成频域信号的声信号的每个频率分量的权重。 权重用于校准声信号，使得多个声信号各自具有相同的幅度，同时声信号保持其各自的相位。 通过使用计算的权重校正声信号的振幅。 增益校准装置实时校准增益，同时实时计算声信号帧的频率分量的权重。

公开(公告)号：US20110235822A1

公开(公告)日：2011-09-29

申请号：US13069063

申请日：2011-03-22

申请人： Jae-Hoon JEONG ,  Kyu-Hong Kim ,  So-Young Jeong ,  Kwang-Cheol Oh

发明人： Jae-Hoon JEONG ,  Kyu-Hong Kim ,  So-Young Jeong ,  Kwang-Cheol Oh

IPC分类号： H04R3/00

CPC分类号： H04R3/005 ,  G10L2021/02166 ,  H04R2201/405 ,  H04R2410/01

摘要： An apparatus and method for removing noise are provided. The apparatus includes an acoustic signal input unit configured to comprise three or more microphones including a first microphone as a reference microphone, a second microphone disposed at a position asymmetrical to the first microphone, and a third microphone disposed at a position symmetrical to the first microphone, and an acoustic signal processing unit configured to remove rear noise using acoustic signals received from the first microphone, the second microphone, and the third microphone.

摘要翻译： 提供了一种用于消除噪声的装置和方法。 该装置包括：声信号输入单元，被配置为包括三个或更多个麦克风，其包括作为参考麦克风的第一麦克风，设置在与第一麦克风不对称的位置处的第二麦克风，以及设置在与第一麦克风对称的位置处的第三麦克风 以及声信号处理单元，被配置为使用从第一麦克风，第二麦克风和第三麦克风接收的声信号来去除后噪声。

公开(公告)号：US20110075859A1

公开(公告)日：2011-03-31

申请号：US12892078

申请日：2010-09-28

申请人： Kyu-Hong KIM ,  So-Young Jeong ,  Kwang-Cheol Oh ,  Jae-Hoon Jeong

发明人： Kyu-Hong KIM ,  So-Young Jeong ,  Kwang-Cheol Oh ,  Jae-Hoon Jeong

IPC分类号： H04R3/00

CPC分类号： H04R3/005 ,  H04R29/004 ,  H04R2201/401

摘要： An apparatus and method for calibrating gain difference between microphones included in a microphone array are provided. In the gain calibrating apparatus, weights for each frequency component of the acoustic signals, which have been converted into the signals in the frequency domain are calculated. The weights are used to calibrate the acoustic signals such that the plurality of acoustic signals each have the same amplitude while the acoustic signals maintain their individual phase. The amplitudes of the acoustic signals are calibrated by use of the calculated weights. The gain calibrating apparatus calibrates gain in real time while calculating weights for frequency components of the frame of acoustic signals in real time.

摘要翻译： 提供了一种用于校准包括在麦克风阵列中的麦克风之间的增益差的装置和方法。 在增益校准装置中，计算已被转换成频域信号的声信号的每个频率分量的权重。 权重用于校准声信号，使得多个声信号各自具有相同的幅度，同时声信号保持其各自的相位。 通过使用计算的权重校正声信号的振幅。 增益校准装置实时校准增益，同时实时计算声信号帧的频率分量的权重。