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41. 发明授权

US08036888B2 Collecting sound device with directionality, collecting sound method with directionality and memory product 有权
标题翻译：收集具有方向性的声音装置，收集方向性和记忆产品的声音方法
公开(公告)号：US08036888B2
公开(公告)日：2011-10-11
申请号：US11519792
申请日：2006-09-13
申请人： Naoshi Matsuo
发明人： Naoshi Matsuo
IPC分类号： G10L15/20
CPC分类号： H04R1/406 , H04R3/04 , H04R2430/20
摘要： A sound input from sound sources existing in a plurality of directions is accepted and converted into a signal on a frequency axis. A suppressing function to suppress the converted signal on a frequency axis is computed, an amplitude component of a signal on a frequency axis is multiplied by the computed suppressing function and the converted signal on a frequency axis is corrected. A phase component of each converted signal on a frequency axis is computed for each frequency and a difference of phase components is computed. A probability value indicative of probability of existence of a sound source in a predetermined direction is specified based on the computed difference and a suppressing function to suppress a sound input from a sound source other than a sound source in a predetermined direction is computed based on the specified probability value.
摘要翻译：接收来自存在于多个方向的声源的声音输入并将其转换为频率轴上的信号。计算抑制频率轴上的转换信号的抑制功能，将频率轴上的信号的振幅分量乘以计算出的抑制功能，并对频率轴上的转换信号进行校正。针对每个频率计算频率轴上的每个转换信号的相位分量，并且计算相位分量的差。基于所计算出的差异来指定指示声源在预定方向上的概率存在的概率值，并且基于所计算的差异来计算抑制从预定方向上的声源以外的声源输入的声音的抑制功能指定概率值。

42. 发明授权

US07979278B2 Speech recognition system and speech file recording system 有权
标题翻译：语音识别系统和语音文件记录系统
公开(公告)号：US07979278B2
公开(公告)日：2011-07-12
申请号：US10285482
申请日：2002-11-01
申请人： Naoshi Matsuo
发明人： Naoshi Matsuo
IPC分类号： G10L15/04
CPC分类号： G10L15/07
摘要： A user term information extraction unit extracts term information of a user out of information that has been input by the user to an application for use other than speech recording beforehand, and a speech recognition dictionary management unit expands a vocabulary of a speech recognition dictionary according to the term information of the user. Next, the user inputs speech via a speech input unit, and a speech recognition unit executes speech recognition using the speech recognition dictionary. A representative term information selection unit extracts the term information of the user contained in the speech recognition result, and selects one or a plurality of pieces of representative term information from the term information of the user. A speech file recording unit records the speech data as a speech file, and renders a file name of the speech file according to the representative term information. Thus, a speech recognition and speech file recording system is provided that records input data as a speech file and automatically renders a file name thereto with which a content of the file can be grasped immediately.
摘要翻译：用户术语信息提取单元从事先输入的用户输入的信息中提取用户的术语信息，语音识别词典管理单元根据语音识别词典扩展语音识别词典的词汇用户的术语信息。接下来，用户经由语音输入单元输入语音，并且语音识别单元使用语音识别词典来执行语音识别。代表词语信息选择单元提取包含在语音识别结果中的用户的术语信息，并从用户的术语信息中选择一个或多个代表性词汇信息。语音文件记录单元将语音数据记录为语音文件，并根据代表性词汇信息呈现语音文件的文件名。因此，提供了将输入数据作为语音文件记录的语音识别和语音文件记录系统，并且自动呈现可以立即掌握文件内容的文件名。

43. 发明申请

US20100322437A1 SIGNAL PROCESSING APPARATUS AND SIGNAL PROCESSING METHOD 有权
标题翻译：信号处理装置和信号处理方法
公开(公告)号：US20100322437A1
公开(公告)日：2010-12-23
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。

44. 发明申请

US20100111325A1 Device for processing sound signal, and method of processing sound signal 有权
标题翻译：用于处理声音信号的装置，以及处理声音信号的方法
公开(公告)号：US20100111325A1
公开(公告)日：2010-05-06
申请号：US12458957
申请日：2009-07-28
申请人： Naoshi Matsuo
发明人： Naoshi Matsuo
IPC分类号： H04R3/00
CPC分类号： H04R3/005 , G01C21/3664
摘要： A signal processing device includes at least two sound signal input elements, an orthogonal transformer, a phase difference determiner, and a virtual spectrum generator. Two sound signals in a time domain are received from the two respective sound signal input elements. The orthogonal transformer orthogonally transforms the two sound signals in the time domain into two respective spectral signals in a frequency domain. The phase difference determiner determines a phase difference between the two spectral signals in the frequency domain. The virtual spectrum generator generates a virtual spectral signal in the frequency domain in accordance with the phase difference and one of the two spectral signals.
摘要翻译：信号处理装置包括至少两个声音信号输入元件，正交变换器，相位差确定器和虚拟频谱发生器。从两个相应的声音信号输入元件接收时域中的两个声音信号。正交变换器将时域中的两个声音信号正交地变换成频域中的两个相应的频谱信号。相位差确定器确定频域中的两个频谱信号之间的相位差。虚拟频谱发生器根据相位差和两个频谱信号之一产生频域中的虚拟频谱信号。

45. 发明申请

US20090010445A1 ECHO SUPPRESSOR, ECHO SUPPRESSING METHOD, AND COMPUTER READABLE STORAGE MEDIUM 有权
标题翻译： ECHO抑制器，ECHO抑制方法和计算机可读存储介质
公开(公告)号：US20090010445A1
公开(公告)日：2009-01-08
申请号：US12142826
申请日：2008-06-20
申请人： Naoshi Matsuo
发明人： Naoshi Matsuo
IPC分类号： H04B3/20
CPC分类号： H04M9/082
摘要： An apparatus is provided for suppressing an echo signal included in a measured signal corresponding to a measured sound. In the apparatus, the measured signal and a reference signal in a time domain are transformed into a frequency domain, and calculated for obtaining each value of a ratio and a correlation between the measured signal and the reference signal in the frequency domain. With executing a comparison of the values of the ratio and the correlation, a coefficient is derived, where a product of the coefficient and the measured sound in the frequency domain gives an estimated value of the echo signal. The echo in the measured signal is suppressed with subtracting the estimation of the echo signal from the measured signal, respectively in the frequency domain.
摘要翻译：提供了一种用于抑制包括在与测量声音相对应的测量信号中的回波信号的装置。在该装置中，将测量信号和时域中的参考信号变换为频域，并计算得到频域中的每个比值和测量信号与参考信号之间的相关性。通过执行比率值和相关性的比较，导出系数，其中系数和频域中的测量声音的乘积给出回波信号的估计值。在频域中分别从测量信号中减去回波信号的估计值来抑制测量信号中的回波。

46. 发明申请

US20080085012A1 Sound signal correcting method, sound signal correcting apparatus and computer program 有权
标题翻译：声音信号校正方法，声音信号校正装置和计算机程序
公开(公告)号：US20080085012A1
公开(公告)日：2008-04-10
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 , G10L15/20 , G10L15/00
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。

47. 发明授权

US07072310B2 Echo canceling system 有权
公开(公告)号：US07072310B2
公开(公告)日：2006-07-04
申请号：US09867664
申请日：2001-05-31
申请人： Naoshi Matsuo
发明人： Naoshi Matsuo
IPC分类号： H04B3/20
CPC分类号： H04M9/082
摘要： An optimal echo canceling processing is provided regardless of a condition of a partner's system and even in the condition with large delay amount and large fluctuation amplitude of a network transmission. A speaker 10 inputs a voice via a microphone 11. A voice signal of this voice is transmitted to a terminal 14 of a conversation partner via a VoIP application 13 and the internet 30. Concurrently, the voice signal is inputted to an echo canceller 100. The echo canceller 100 detects sound characteristics of an echo path in advance or dynamically, adjusts a filter coefficient for generating an echo canceling signal, and receives an adjustment by a user. The echo canceller 100 generates the echo canceling signal by processing the received voice signal based on the sound characteristics and the adjusting amount. The echo canceling signal is subtracted from a response signal containing an echo that has been re-inputted from a loudspeaker 22 of the partner via a microphone 21.

48. 发明授权

US07035416B2 Microphone array apparatus 有权
公开(公告)号：US07035416B2
公开(公告)日：2006-04-25
申请号：US10003768
申请日：2001-10-26
申请人： Naoshi Matsuo
发明人： Naoshi Matsuo
IPC分类号： H04R3/00
CPC分类号： H04R3/005 , H04R2201/403 , H04R2410/05 , H04R2430/23
摘要： A microphone array apparatus includes a microphone array including microphones, one of the microphones being a reference microphone, filters receiving output signals of the microphones, and a filter coefficient calculator which receives the output signals of the microphones, a noise and a residual signal obtained by subtracting filtered output signals of the microphones other than the reference microphone from a filtered output signal of the reference microphone and which obtain filter coefficients of the filters in accordance with an evaluation function based on the residual signal.

49. 发明授权

US09135924B2 Noise suppressing device, noise suppressing method and mobile phone 有权
标题翻译：噪声抑制装置，噪声抑制方法和手机
公开(公告)号：US09135924B2
公开(公告)日：2015-09-15
申请号：US12453173
申请日：2009-04-30
申请人： Shoji Hayakawa , Naoshi Matsuo
发明人： Shoji Hayakawa , Naoshi Matsuo
IPC分类号： H04B15/00 , G10L21/0208 , G10L21/0224 , G10L21/0216
CPC分类号： G10L21/0208 , G10L21/0216 , G10L21/0224 , G10L2021/02165 , G10L2021/02166
摘要： There is provided a noise suppressing device, for suppressing a noise component contained in a sound, including: at least two sound receiving parts receiving sounds from a plurality of directions containing a sound from a direction of a given sound source and converting the sounds to digital sound signals in a time domain, respectively; an estimating part acquiring both direction information on a direction of the given sound source and distance information on a distance from the given sound source based upon the digital sound signals converted by the sound receiving parts, and estimating a component value of a noise component contained in the signal by use of the direction information and the distance information; and a controlling part acquiring a control value of a suppression amount for controlling a range of a direction of the digital sound signals.
摘要翻译：提供了一种用于抑制包含在声音中的噪声成分的噪声抑制装置，包括：至少两个声音接收部件，其从包含来自给定声源的方向的声音的多个方向接收声音，并将声音转换为数字分别在时域中的声音信号; 估计部分基于由声音接收部分转换的数字声音信号，获取关于给定声源的方向的两个方向信息和距给定声源的距离的距离信息，以及估计包含在信号通过使用方向信息和距离信息; 以及控制部，其获取用于控制数字声音信号的方向的范围的抑制量的控制值。

50. 发明授权

US09058821B2 Computer-readable medium for recording audio signal processing estimating a selected frequency by comparison of voice and noise frame levels 有权
标题翻译：用于记录音频信号处理的计算机可读介质，通过比较语音和噪声帧级别来估计选定频率
公开(公告)号：US09058821B2
公开(公告)日：2015-06-16
申请号：US12621918
申请日：2009-11-19
申请人： Chikako Matsumoto , Naoshi Matsuo
发明人： Chikako Matsumoto , Naoshi Matsuo
IPC分类号： G10L21/00 , G10L25/69 , G10L21/0208 , G10L19/005 , G10L19/12 , G10L21/02
CPC分类号： G10L25/69 , G10L19/005 , G10L19/12 , G10L21/02 , G10L21/0208
摘要： A computer implemented method comprising: setting a plurality of frames on a time axis between a first waveform of an input to audio processing and a second waveform of an output from the audio processing, detecting a voice frame and a noise frame in the first and second waveform, calculating a first and second spectrum from the first and second waveform, adjusting level of the first or second spectrum of the noise frame, setting the adjusted first and second spectrum of the noise frame as a third and fourth spectrum, calculating a distortion amount of the noise frame from the third and fourth spectrum, estimating a noise model spectrum from the first or second spectrum, determining a selected frequency by comparison of voice and noise frame spectrum levels, and calculating a distortion amount of the voice frame from the first and second spectrum of the voice frame at the selected frequency.
摘要翻译：一种计算机实现的方法，包括：在音频处理的输入的第一波形和来自音频处理的输出的第二波形之间的时间轴上设置多个帧，检测第一和第二帧中的语音帧和噪声帧波形，从第一和第二波形计算第一和第二频谱，调整噪声帧的第一或第二频谱的电平，将调整的噪声帧的第一和第二频谱设置为第三和第四频谱，计算失真量从第三和第四频谱的噪声帧中估计来自第一或第二频谱的噪声模型频谱，通过比较语音和噪声帧频谱电平来确定所选择的频率，以及计算来自第一和第二频谱的语音帧的失真量，所选频率的语音帧的第二个频谱。

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