公开(公告)号：US20100027805A1

公开(公告)日：2010-02-04

申请号：US12453177

申请日：2009-04-30

申请人： Taisuke Itou ,  Naoshi Matsuo

发明人： Taisuke Itou ,  Naoshi Matsuo

IPC分类号： G10K11/16

CPC分类号： G10K11/178 ,  G10K2210/1282 ,  G10K2210/30232 ,  G10K2210/3033 ,  G10K2210/3055 ,  H04R2499/13 ,  H04S7/303

摘要： A transfer function estimating device for estimating a transfer function of a sound, includes: a sound receiving module receiving a sound from a given sound source and converting the sound into a tone signal; a storage module storing first transfer functions of the sound propagating from the given sound source to the sound receiving module and transformation coefficients for converting the first transfer functions into given second transfer functions so as to associate with each other; a reference tone signal acquiring module acquiring a reference tone signal of the sound source; an acquiring module acquiring a transfer function of the sound received by the sound receiving module on the basis of the tone signal and the reference tone signal; a specifying module acquiring a cross-correlation value between the transfer function acquired by the acquiring module and each of the first transfer functions stored in the storage module.

摘要翻译： 用于估计声音的传递函数的传递函数估计装置包括：声音接收模块，接收来自给定声源的声音并将声音转换成音调信号; 存储模块，其将从所述给定声源传播的声音的第一传递函数存储到所述声音接收模块;以及变换系数，用于将所述第一传递函数转换为给定的第二传递函数，以便彼此关联; 参考音信号获取模块，用于获取所述声源的参考音信号; 获取模块，基于所述音调信号和所述参考音调信号，获取由所述声音接收模块接收的声音的传递函数; 指定模块获取由所述获取模块获取的所述传递函数与存储在所述存储模块中的所述第一传递函数之间的互相关值。

公开(公告)号：US08462962B2

公开(公告)日：2013-06-11

申请号：US12860322

申请日：2010-08-20

申请人： Taisuke Itou ,  Naoshi Matsuo

发明人： Taisuke Itou ,  Naoshi Matsuo

IPC分类号： H04B3/20

CPC分类号： H04M9/082 ,  G10L2021/02082 ,  G10L2021/02165 ,  H04R3/005 ,  H04R3/02 ,  H04R2201/401 ,  H04R2430/03 ,  H04R2430/20 ,  H04R2499/13

摘要： A sound processor includes a conversion unit converts a reference sound signal corresponding to a base of sound to be output and an observation sound signal based on each of sound signals output by a plurality of sound receiving units into frequency components, an echo suppression unit estimates echo derived from sound based on a converted reference sound signal and suppressing the estimated echo in a converted observation sound signal, a noise suppression unit estimates noise based on an arrival direction of sound and suppressing the estimated noise in the converted observation sound signal and an integrating process unit suppresses, with respect to each frequency component, echo and noise in the converted sound signal based on a observation sound signal obtained after echo suppression and a observation sound signal obtained after noise suppression.

摘要翻译： 声音处理器包括转换单元，将基于要输出的声音的基准的参考声音信号和基于由多个声音接收单元输出的每个声音信号的观测声音信号转换为频率分量，回波抑制单元估计回波 基于转换的参考声音信号导出的声音并抑制转换的观测声音信号中的估计回波，噪声抑制单元基于声音的到达方向估计噪声，并抑制转换的观测声音信号中的估计噪声，以及积分处理 基于在回波抑制之后获得的观察声音信号和在噪声抑制之后获得的观察声音信号，单位对于每个频率分量抑制转换的声音信号中的回波和噪声。

公开(公告)号：US20110019832A1

公开(公告)日：2011-01-27

申请号：US12860322

申请日：2010-08-20

申请人： Taisuke ITOU ,  Naoshi Matsuo

发明人： Taisuke ITOU ,  Naoshi Matsuo

IPC分类号： H04B3/20

CPC分类号： H04M9/082 ,  G10L2021/02082 ,  G10L2021/02165 ,  H04R3/005 ,  H04R3/02 ,  H04R2201/401 ,  H04R2430/03 ,  H04R2430/20 ,  H04R2499/13

摘要： A sound processor includes a conversion unit converts a reference sound signal corresponding to a base of sound to be output and an observation sound signal based on each of sound signals output by a plurality of sound receiving units into frequency components, an echo suppression unit estimates echo derived from sound based on a converted reference sound signal and suppressing the estimated echo in a converted observation sound signal, a noise suppression unit estimates noise based on an arrival direction of sound and suppressing the estimated noise in the converted observation sound signal and an integrating process unit suppresses, with respect to each frequency component, echo and noise in the converted sound signal based on a observation sound signal obtained after echo suppression and a observation sound signal obtained after noise suppression.

摘要翻译： 声音处理器包括转换单元，将基于要输出的声音的基准的参考声音信号和基于由多个声音接收单元输出的每个声音信号的观测声音信号转换为频率分量，回波抑制单元估计回波 基于转换的参考声音信号导出的声音并抑制转换的观测声音信号中的估计回波，噪声抑制单元基于声音的到达方向估计噪声，并抑制转换的观测声音信号中的估计噪声，以及积分处理 基于在回波抑制之后获得的观察声音信号和在噪声抑制之后获得的观察声音信号，单位对于每个频率分量抑制转换的声音信号中的回波和噪声。

公开(公告)号：US08340963B2

公开(公告)日：2012-12-25

申请号：US12756768

申请日：2010-04-08

申请人： Naoshi Matsuo ,  Taisuke Itou

发明人： Naoshi Matsuo ,  Taisuke Itou

IPC分类号： G10L21/02 ,  G10L15/00 ,  A61F11/06 ,  G10K11/16

CPC分类号： H04R3/02 ,  G10L15/20 ,  G10L2021/02082

摘要： An echo suppressing system includes: a sound output device for outputting sound based on a sound signal, including a passing section for allowing passage of a component of a different frequency band, and a plurality of sound output sections, each of which outputs sound based on each of the plurality of sound signals passed through the passing section; a summer for summing the plurality of sound signals to generate a reference sound signal; a sound input device for converting input sound into a sound signal; and an echo suppressor for suppressing echo based on the sound output by the sound output device, including an input section to which a sound signal is input from the sound input device as an observation sound signal, and a correction section for correcting the observation sound signal so as to suppress echo included in the observation sound signal.

摘要翻译： 回波抑制系统包括：声音输出装置，用于输出基于声音信号的声音，包括用于允许不同频带的分量通过的通过部分和多个声音输出部分，每个声音输出部分基于 多个声音信号中的每一个通过通过部分; 用于对所述多个声音信号求和以产生参考声音信号的加法器; 用于将输入声音转换成声音信号的声音输入装置; 以及基于声音输出装置输出的声音抑制回波的回波抑制器，包括从声音输入装置输入声音信号的输入部分作为观察声音信号，以及校正部分，用于校正观察声音信号 以抑制观察声信号中包含的回波。

公开(公告)号：US08160264B2

公开(公告)日：2012-04-17

申请号：US12453177

申请日：2009-04-30

申请人： Taisuke Itou ,  Naoshi Matsuo

发明人： Taisuke Itou ,  Naoshi Matsuo

IPC分类号： A61F11/06 ,  G10K11/16

CPC分类号： G10K11/178 ,  G10K2210/1282 ,  G10K2210/30232 ,  G10K2210/3033 ,  G10K2210/3055 ,  H04R2499/13 ,  H04S7/303

摘要： A transfer function estimating device for estimating a transfer function of a sound, includes: a sound receiving module receiving a sound from a given sound source and converting the sound into a tone signal; a storage module storing first transfer functions of the sound propagating from the given sound source to the sound receiving module and transformation coefficients for converting the first transfer functions into given second transfer functions so as to associate with each other; a reference tone signal acquiring module acquiring a reference tone signal of the sound source; an acquiring module acquiring a transfer function of the sound received by the sound receiving module on the basis of the tone signal and the reference tone signal; a specifying module acquiring a cross-correlation value between the transfer function acquired by the acquiring module and each of the first transfer functions stored in the storage module.

摘要翻译： 用于估计声音的传递函数的传递函数估计装置包括：声音接收模块，接收来自给定声源的声音并将声音转换成音调信号; 存储模块，其将从所述给定声源传播的声音的第一传递函数存储到所述声音接收模块;以及变换系数，用于将所述第一传递函数转换为给定的第二传递函数，以便彼此关联; 参考音信号获取模块，用于获取所述声源的参考音信号; 获取模块，基于所述音调信号和所述参考音调信号，获取由所述声音接收模块接收的声音的传递函数; 指定模块获取由所述获取模块获取的所述传递函数与存储在所述存储模块中的所述第一传递函数之间的互相关值。

公开(公告)号：US08638952B2

公开(公告)日：2014-01-28

申请号：US12817406

申请日：2010-06-17

申请人： Naoshi Matsuo

发明人： Naoshi Matsuo

IPC分类号： H04B15/00

CPC分类号： H04R3/005 ,  G10L21/0208 ,  G10L2021/02165

摘要： There is provided a signal processing apparatus, for suppressing a noise, which includes a first calculator to obtain a phase difference between two spectrum signals in a frequency domain transformed from sound signals received by at least two microphones to estimate a sound source by the phase difference, a second calculator to obtain a value representing a target signal likelihood and to determine a sound suppressing phase difference range at each frequency, in which a sound signal is suppressed, on the basis of the target signal likelihood, and a filter. The filter generate a synchronized spectrum signal by synchronizing each frequency component of one of the two spectrum signals to each frequency component of the other of the two spectrum signals for each frequency when the phase difference is within the sound suppressing phase difference range and to generate a filtered spectrum signal.

摘要翻译： 提供了一种用于抑制噪声的信号处理装置，其包括第一计算器，以获得从由至少两个麦克风接收的声音信号变换的频域中的两个频谱信号之间的相位差，以通过相位差来估计声源 ，第二计算器，用于获得表示目标信号似然性的值，并且基于目标信号似然率确定抑制了声音信号的每个频率处的声音抑制相位差范围和滤波器。 当相位差在声音抑制相位差范围内时，滤波器通过将两个频谱信号之一的每个频率分量与每个频率的另一个频谱信号中的另一个的每个频率分量同步，并产生同步频谱信号 滤波频谱信号。

公开(公告)号：US08620388B2

公开(公告)日：2013-12-31

申请号：US12494779

申请日：2009-06-30

申请人： Shoji Hayakawa ,  Naoshi Matsuo ,  Hiroshi Katayama

发明人： Shoji Hayakawa ,  Naoshi Matsuo ,  Hiroshi Katayama

IPC分类号： H04M1/00

CPC分类号： G10L21/0208 ,  G10L2021/02165 ,  G10L2021/02166

摘要： A noise suppressing device receives sound signals through a plurality of sound-receiving units and suppresses noise components included in the input sound signals. The noise suppressing device includes a detecting unit which detects a usage pattern of the noise suppressing device from a plurality of usage patterns in which positional relationships of the plurality of sound-receiving units and/or positional relationships between the plurality of sound-receiving units and a target sound source are different from each other, a converting unit which converts using environment information used in a noise suppressing process to each of the sound signals inputted by the plurality of sound-receiving units into using environment information in accordance with a usage pattern detected by the detecting unit and a suppressing unit which performs the noise suppressing process using the using environment information converted by the converting unit to the sound signals.

摘要翻译： 噪声抑制装置通过多个声音接收单元接收声音信号，并抑制包含在输入声音信号中的噪声分量。 噪声抑制装置包括检测单元，其从多个使用模式中检测噪声抑制装置的使用模式，多个使用模式中多个声音接收单元的位置关系和/或多个声音接收单元之间的位置关系和 目标声源彼此不同;转换单元，其根据检测到的使用模式，将使用在噪声抑制处理中的环境信息转换为由多个声音接收单元输入的每个声音信号变为使用环境信息 通过检测单元和抑制单元，该抑制单元使用由转换单元转换成的声音信号进行噪声抑制处理。

公开(公告)号：US08249270B2

公开(公告)日：2012-08-21

申请号：US11698113

申请日：2007-01-26

申请人： Naoshi Matsuo

发明人： Naoshi Matsuo

IPC分类号： H04B15/00

CPC分类号： G10L21/0208

摘要： A sound signal correcting apparatus converts an acquired sound signal into a phase spectrum and an amplitude spectrum by an FFT process, compares the amplitude spectrum of the obtained sound signal with a noise model so that a correction coefficient used for correcting the amplitude spectrum of the sound signal is derived, smoothes waveform of the amplitude spectrum of the sound signal using the derived correction coefficient, and converts the sound signal into a sound signal where the amplitude spectrum is corrected by performing an inverse FFT process on the phase spectrum and the smoothed amplitude spectrum.

摘要翻译： 声音信号校正装置通过FFT处理将所获取的声音信号转换为相位谱和幅度谱，将所获得的声音信号的振幅谱与噪声模型进行比较，以便用于校正声音的幅度谱的校正系数 导出信号，使用导出的校正系数平滑声音信号的振幅谱的波形，并且通过对相位谱进行逆FFT处理并且将平滑的幅度谱转换成声音信号，该声音信号被校正了振幅谱 。

公开(公告)号：US20090076810A1

公开(公告)日：2009-03-19

申请号：US12232177

申请日：2008-09-11

申请人： Naoshi Matsuo

发明人： Naoshi Matsuo

IPC分类号： G10L21/00 ,  G10L19/14 ,  G10L15/20

CPC分类号： H03G3/32

摘要： A sound processing apparatus is provided for estimating the power of background noise using a directional sound receiving technology using a plurality of sound receiving units, computing a gain control value on the basis of the estimated power of background noise and a predetermined power target value, and outputting the gain control value, so that a delay time of starting gain control can be reduced, and a slow response of a speech recognition application program or degradation of the speech quality of a voice communication program can be prevented.

摘要翻译： 提供了一种使用使用多个声音接收单元的定向声音接收技术来估计背景噪声的功率的声音处理装置，基于背景噪声的估计功率和预定的功率目标值来计算增益控制值，以及 输出增益控制值，使得可以减少开始增益控制的延迟时间，并且可以防止语音识别应用程序的缓慢响应或语音通信程序的语音质量的劣化。

公开(公告)号：US07116791B2

公开(公告)日：2006-10-03

申请号：US10721067

申请日：2003-11-26

申请人： Naoshi Matsuo

发明人： Naoshi Matsuo

IPC分类号： H04R3/00

CPC分类号： H04R3/005 ,  H04R2201/401

摘要： The present invention provides a sound signal processing function comprising a plurality of kinds of sound signal processing with the same arrangement of microphones that does not require replacement of the microphones or the sound signal processing part regardless of the application or the sound signal processing function.The present invention uses an apparatus having a signal processing function such as a personal computer as the platform. An array section includes a plurality of microphones arranged in the X and Y axis directions. A received sound signal from each direction is subjected to a delay process by a delay unit, a subtraction process by subtracters 121 and 122, so as to obtain a received sound signal with a unidirectional pattern to the direction of the front of the apparatus and a received sound signal with a bidirectional pattern to the directions orthogonal thereto. In the case where the sound source is not in the direction of the front, a correction process to direct the sound source to the front is performed by a delay unit, a subtracter and adjustment of the gain amount. The directional sound signal calculating part, the sound source direction detecting part, and the noise suppressing part have a logic necessary to implement various functions using the uni/bidirectivity pattern signal as the input.

摘要翻译： 本发明提供一种声音信号处理功能，其包括具有相同配置的麦克风的多种声音信号处理，其不需要替换麦克风或声音信号处理部分，而与应用或声音信号处理功能无关。 本发明使用具有诸如个人计算机之类的信号处理功能的装置作为平台。 阵列部分包括沿X轴方向和Y轴方向排列的多个麦克风。 来自每个方向的接收到的声音信号由延迟单元进行延迟处理，减法器121和122进行减法处理，以便获得具有单向图案的接收声音信号到设备前部的方向，以及 接收到与其正交的方向的双向图案的声音信号。 在声源不在前方的情况下，通过延迟单元，减法器和增益量的调整来进行将声源引导到前方的校正处理。 定向声音信号计算部分，声源方向检测部分和噪声抑制部分具有使用单向/双向图案信号作为输入来实现各种功能所需的逻辑。