公开(公告)号：US08913157B2

公开(公告)日：2014-12-16

申请号：US13183531

申请日：2011-07-15

申请人： Keiichi Osako ,  Toshiyuki Sekiya ,  Toshiyuki Kumakura ,  Mototsugu Abe

发明人： Keiichi Osako ,  Toshiyuki Sekiya ,  Toshiyuki Kumakura ,  Mototsugu Abe

IPC分类号： H04N5/76 ,  H04B15/00 ,  G10L21/0208 ,  G10L25/27

CPC分类号： G10L21/0208 ,  G10L25/27

摘要： A mechanical noise suppression apparatus includes: a framing section adapted to divide an input signal into frames of a predetermined time length; a Fourier transform section adapted to transform framed signals obtained by the framing section into a frequency spectrum of a frequency domain; a mechanical noise reduction section adapted to correct the frequency spectrum of the input signal obtained by the Fourier transform section based on frequency spectrum information of mechanical noise to suppress the mechanical noise; an inverse Fourier transform section adapted to return the frequency spectrum corrected by the mechanical noise reduction section into framed signals of a time domain; and a frame synthesis section adapted to carry out frame synthesis of the framed signals of frames obtained by the inverse Fourier transform section to obtain an output signal in which the mechanical noise is suppressed.

摘要翻译： 机械噪声抑制装置包括：成帧部分，适于将输入信号划分成预定时间长度的帧; 傅里叶变换部分，适于将由所述成帧部分获得的成帧信号转换为频域的频谱; 机械噪声降低部，其适于基于机械噪声的频谱信息校正由傅里叶变换部获得的输入信号的频谱，以抑制机械噪声; 逆傅里叶变换部分，其将由机械噪声降低部分校正的频谱返回到时域的成帧信号; 以及帧合成部，其适于进行由傅里叶逆变换部获得的帧的成帧信号的帧合成，以获得机械噪声被抑制的输出信号。

公开(公告)号：US08842198B2

公开(公告)日：2014-09-23

申请号：US13330272

申请日：2011-12-19

申请人： Toshiyuki Sekiya ,  Keiichi Osako ,  Mototsugu Abe

发明人： Toshiyuki Sekiya ,  Keiichi Osako ,  Mototsugu Abe

IPC分类号： H04N5/76 ,  G10L21/0208 ,  G10L21/0232

CPC分类号： G10L21/0208 ,  G10L21/0232 ,  G10L2021/02166

摘要： An audio signal processing device includes a first microphone configured to pick up audio and output a first audio signal; a second microphone configured to pick up the audio and output a second audio signal; a first frequency converter configured to convert the first audio signal to a first audio spectrum signal; a second frequency converter configured to convert the second audio signal to a second audio spectrum signal; an operating sound estimating unit configured to estimate, based on the correlation between a sound emitting member that emits an operating sound and the first and second microphones, an operating sound spectrum signal indicating the operating sound, by calculating the first and second audio spectrum signals; and an operating sound reducing unit configured to reduce the estimated operating sound spectrum signal from the first and second audio spectrum signals.

摘要翻译： 音频信号处理装置包括被配置为拾取音频并输出第一音频信号的第一麦克风; 配置为拾取音频并输出第二音频信号的第二麦克风; 第一变频器，其被配置为将所述第一音频信号转换为第一音频频谱信号; 第二变频器，被配置为将所述第二音频信号转换为第二音频频谱信号; 操作声音估计单元，被配置为通过计算第一和第二音频频谱信号，基于发出操作声音的声音发射构件与第一和第二麦克风之间的相关性来估计指示操作声音的操作声音频谱信号; 以及操作声音降低单元，被配置为减少来自第一和第二音频频谱信号的估计的操作声谱信号。

公开(公告)号：US20140169581A1

公开(公告)日：2014-06-19

申请号：US14232748

申请日：2012-05-29

申请人： Keiichi Osako ,  Toshiyuki Sekiya ,  Mototsugu Abe

发明人： Keiichi Osako ,  Toshiyuki Sekiya ,  Mototsugu Abe

IPC分类号： G10K11/175

CPC分类号： G10K11/175 ,  G10L21/0216 ,  G10L25/03 ,  G10L25/09 ,  G10L2021/02085 ,  H04N5/772 ,  H04N9/8042 ,  H04N9/806

摘要： There is provided an audio signal processing device including a feature amount extraction unit configured to extract, from an audio signal obtained by a sound collection unit, a feature amount that indicates a pulsed operation sound generated from a sound generation unit provided in a same housing as the sound collection unit, and a noise determination unit configured to determine whether or not the operation sound is included in the audio signal based on the feature amount.

摘要翻译： 提供一种音频信号处理装置，包括：特征量提取单元，被配置为从由声音采集单元获得的音频信号中提取表示从设置在同一壳体中的声音产生单元产生的脉冲操作声音的特征量， 声音收集单元和噪声判定单元，被配置为基于特征量确定音频信号中是否包括操作声音。

公开(公告)号：US08510108B2

公开(公告)日：2013-08-13

申请号：US13041705

申请日：2011-03-07

申请人： Toshiyuki Sekiya ,  Mototsugu Abe

发明人： Toshiyuki Sekiya ,  Mototsugu Abe

IPC分类号： G10L15/20

CPC分类号： G10L25/78 ,  G10L21/0208

摘要： A voice processing device includes a zone detection unit which detects a voice zone including a voice signal or a non-steady sound zone including a non-steady signal other than the voice signal from an input signal and a filter calculation unit that calculates a filter coefficient for maintaining the quality of the voice signal in the voice zone while suppressing the non-steady signal in the non-steady sound zone according to the detection result by the zone detection unit, in which the filter calculation unit calculates the filter coefficient by using a filter coefficient calculated in the non-steady sound zone for the voice zone and using a filter coefficient calculated in the voice zone for the non-steady sound zone. In one embodiment, a verification unit verifies a constraint condition of the filter coefficient based on whether the amount of suppression of the non-steady sound signal that would result from applying the filter to the sound signal is less than or equal to a threshold value.

摘要翻译： 语音处理装置包括区域检测单元，该区域检测单元检测包括语音信号的语音区域或包括来自输入信号的语音信号以外的非稳定信号的非稳定声音区域以及计算滤波器系数的滤波器计算单元 用于根据区域检测单元的检测结果抑制语音区域中的语音信号的质量，同时根据区域检测单元的检测结果抑制非稳定声音区域中的非稳定信号，其中滤波器计算单元通过使用 在声音区域的非稳定声音区域中计算的滤波器系数，并使用在非稳定声音区域的语音区域中计算的滤波器系数。 在一个实施例中，验证单元基于滤波器对声音信号的应用所产生的非稳定声音信号的抑制量是否小于或等于阈值来验证滤波器系数的约束条件。

公开(公告)号：US20110228951A1

公开(公告)日：2011-09-22

申请号：US13041638

申请日：2011-03-07

申请人： Toshiyuki SEKIYA ,  Keiichi Osako ,  Mototsugu Abe

发明人： Toshiyuki SEKIYA ,  Keiichi Osako ,  Mototsugu Abe

IPC分类号： H04B15/00

CPC分类号： G10L21/0208 ,  G10L21/0232

摘要： A sound processing apparatus includes a target sound emphasizing unit configured to acquire a sound frequency component by emphasizing target sound in input sound in which the target sound and noise are included, a target sound suppressing unit configured to acquire a noise frequency component by suppressing the target sound in the input sound, a gain computing unit configured to compute a gain value to be multiplied by the sound frequency component using a gain function that provides a gain value and has a slope that are less than predetermined values when an energy ratio of the sound frequency component to the noise frequency component is less than or equal to a predetermined value, and a gain multiplier unit configured to multiply the sound frequency component by the gain value computed by the gain computing unit.

摘要翻译： 一种声音处理装置，包括：目标声音强调单元，被配置为通过在其中包括目标声音和噪声的输入声音中强调目标声音来获取声音分量;目标声音抑制单元，被配置为通过抑制目标声音成分来获取噪声频率分量 声音，增益计算单元，被配置为使用提供增益值的增益函数来计算要乘以声频分量的增益值，并且当声音的能量比率具有小于预定值的斜率时 噪声频率分量的频率分量小于或等于预定值，以及增益乘法器单元，被配置为将声频分量乘以由增益计算单元计算的增益值。

公开(公告)号：US09113241B2

公开(公告)日：2015-08-18

申请号：US13224383

申请日：2011-09-02

申请人： Keiichi Osako ,  Toshiyuki Sekiya ,  Ryuichi Namba ,  Mototsugu Abe

发明人： Keiichi Osako ,  Toshiyuki Sekiya ,  Ryuichi Namba ,  Mototsugu Abe

IPC分类号： H04B15/00 ,  H04R3/00 ,  G10L21/0208 ,  G10L21/0232

CPC分类号： H04R3/005 ,  G10L21/0208 ,  G10L21/0232

摘要： Disclosed herein is a noise removing apparatus, including: an object sound emphasis section adapted to carry out an object sound emphasis process for observation signals of first and second microphones to produce an object sound estimation signal; a noise estimation section adapted to carry out a noise estimation process for the observation signals to produce a noise estimation signal; a post filtering section adapted to remove noise components remaining in the object sound estimation signal using the noise estimation signal; a correction coefficient calculation section adapted to calculate, for each frequency, a correction coefficient for correcting the post filtering process based on the object sound estimation signal and the noise estimation signal; and a correction coefficient changing section adapted to change those of the correction coefficients which belong to a frequency band suffering from spatial aliasing such that a peak appearing at a particular frequency is suppressed.

摘要翻译： 这里公开了一种噪声消除装置，包括：对象声音强调部，适于对第一和第二麦克风的观测信号进行对象声音强调处理，以产生对象声音估计信号; 噪声估计部，其适于对所述观测信号进行噪声估计处理，以产生噪声估计信号; 后滤波部分，其适于使用所述噪声估计信号去除所述对象声音估计信号中剩余的噪声分量; 校正系数计算部，其针对每个频率，根据所述对象声音估计信号和所述噪声估计信号，算出校正所述后置滤波处理的校正系数; 以及校正系数改变部分，其适于改变属于具有空间混叠的频带的校正系数的校正系数，使得以特定频率出现的峰值被抑制。

公开(公告)号：US08861746B2

公开(公告)日：2014-10-14

申请号：US13041638

申请日：2011-03-07

申请人： Toshiyuki Sekiya ,  Keiichi Osako ,  Mototsugu Abe

发明人： Toshiyuki Sekiya ,  Keiichi Osako ,  Mototsugu Abe

IPC分类号： H04B15/00 ,  G10L21/0208 ,  G10L21/0232

CPC分类号： G10L21/0208 ,  G10L21/0232

摘要： A sound processing apparatus includes a target sound emphasizing unit configured to acquire a sound frequency component by emphasizing target sound in input sound in which the target sound and noise are included, a target sound suppressing unit configured to acquire a noise frequency component by suppressing the target sound in the input sound, a gain computing unit configured to compute a gain value to be multiplied by the sound frequency component using a gain function that provides a gain value and has a slope that are less than predetermined values when an energy ratio of the sound frequency component to the noise frequency component is less than or equal to a predetermined value, and a gain multiplier unit configured to multiply the sound frequency component by the gain value computed by the gain computing unit.

摘要翻译： 一种声音处理装置，包括：目标声音强调单元，被配置为通过在其中包括目标声音和噪声的输入声音中强调目标声音来获取声音分量;目标声音抑制单元，被配置为通过抑制目标声音成分来获取噪声频率分量 声音，增益计算单元，被配置为使用提供增益值的增益函数来计算要乘以声频分量的增益值，并且当声音的能量比率具有小于预定值的斜率时 噪声频率分量的频率分量小于或等于预定值，以及增益乘法器单元，被配置为将声频分量乘以由增益计算单元计算的增益值。

公开(公告)号：US20120238908A1

公开(公告)日：2012-09-20

申请号：US13416493

申请日：2012-03-09

申请人： Keiichi Osako ,  Toshiyuki Sekiya ,  Mototsugu Abe

发明人： Keiichi Osako ,  Toshiyuki Sekiya ,  Mototsugu Abe

IPC分类号： A61B5/11 ,  A61B5/12

CPC分类号： A61B7/006 ,  A61B7/04

摘要： An information processing apparatus and method provide logic for processing information. In one implementation, an information processing apparatus may include a receiving unit configured to receive an audio signal associated with a motion of a human mandible over a time period. The information processing apparatus may also include a determination unit configured to determine whether the motion of the human mandible corresponds to mastication, based on at least a power of the received audio signal during the time period.

摘要翻译： 信息处理装置和方法提供用于处理信息的逻辑。 在一个实现中，信息处理设备可以包括被配置为在一段时间内接收与人类下颌骨的运动相关联的音频信号的接收单元。 信息处理装置还可以包括确定单元，其被配置为基于至少在该时间段期间接收到的音频信号的功率来确定人类下颚骨的运动是否对应于咀嚼。

公开(公告)号：US20120162471A1

公开(公告)日：2012-06-28

申请号：US13330272

申请日：2011-12-19

申请人： Toshiyuki SEKIYA ,  Keiichi Osako ,  Mototsugu Abe

发明人： Toshiyuki SEKIYA ,  Keiichi Osako ,  Mototsugu Abe

IPC分类号： H04N5/225 ,  H03G3/20

CPC分类号： G10L21/0208 ,  G10L21/0232 ,  G10L2021/02166

摘要： An audio signal processing device includes a first microphone configured to pick up audio and output a first audio signal; a second microphone configured to pick up the audio and output a second audio signal; a first frequency converter configured to convert the first audio signal to a first audio spectrum signal; a second frequency converter configured to convert the second audio signal to a second audio spectrum signal; an operating sound estimating unit configured to estimate, based on the correlation between a sound emitting member that emits an operating sound and the first and second microphones, an operating sound spectrum signal indicating the operating sound, by calculating the first and second audio spectrum signals; and an operating sound reducing unit configured to reduce the estimated operating sound spectrum signal from the first and second audio spectrum signals.

摘要翻译： 音频信号处理装置包括被配置为拾取音频并输出第一音频信号的第一麦克风; 配置为拾取音频并输出第二音频信号的第二麦克风; 第一变频器，其被配置为将所述第一音频信号转换为第一音频频谱信号; 第二变频器，被配置为将所述第二音频信号转换为第二音频频谱信号; 操作声音估计单元，被配置为通过计算第一和第二音频频谱信号，基于发出操作声音的声音发射构件与第一和第二麦克风之间的相关性来估计指示操作声音的操作声音频谱信号; 以及操作声音降低单元，被配置为减少来自第一和第二音频频谱信号的估计的操作声谱信号。

公开(公告)号：US20110022361A1

公开(公告)日：2011-01-27

申请号：US12835976

申请日：2010-07-14

申请人： Toshiyuki SEKIYA ,  Mototsugu Abe

发明人： Toshiyuki SEKIYA ,  Mototsugu Abe

IPC分类号： G06F15/00

CPC分类号： G10L21/0272 ,  G10L21/0308 ,  H04R3/005

摘要： A sound processing device includes: a nonlinear processing unit that outputs a plurality of sound signals including sound sources existing in predetermined areas by performing a nonlinear process for a plurality of observed signals that are generated by a plurality of sound sources and are observed by a plurality of sensors; a signal selecting unit that selects a sound signal including a specific sound source from among the plurality of sound signals output by the nonlinear processing unit and the observed signal including the plurality of sound sources; and a sound separating unit that separates a sound signal including the specific sound source that is selected by the signal selecting unit from the observed signal selected by the signal selecting unit.

摘要翻译： 声音处理装置包括：非线性处理单元，通过对由多个声源产生的多个观测信号进行非线性处理，输出多个声音信号，包括存在于预定区域中的声源，并且被多个 传感器; 信号选择单元，从由非线性处理单元输出的多个声音信号和包括多个声源的观测信号中选择包括特定声源的声音信号; 以及声音分离单元，其从包括由信号选择单元选择的特定声源的声音信号从由信号选择单元选择的观测信号中分离出来。