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1. 发明申请

US20100010808A1 Method, Apparatus and Computer Program for Suppressing Noise 有权
标题翻译：抑制噪声的方法，装置和计算机程序
公开(公告)号：US20100010808A1
公开(公告)日：2010-01-14
申请号：US11794563
申请日：2006-08-29
申请人： Akihiko Sugiyama , Masanori Kato
发明人： Akihiko Sugiyama , Masanori Kato
IPC分类号： G10L21/00
CPC分类号： G10L21/0208 , G10L19/0204 , G10L21/0216
摘要： To provide a noise suppressing method and apparatus capable of achieving high-quality noise suppression using a lower amount of operations. Noise contained in an input signal is suppressed by transforming the input signal into frequency-domain signals; integrating bands of the frequency-domain signals to determine integrated frequency-domain signals; determining estimated noise based on the integrated frequency-domain signals; determining spectral gains based on the estimated noise and said integrated frequency-domain signals; and weighting said frequency-domain signals by the spectral gains.
摘要翻译：提供能够使用较少量的操作来实现高质量噪声抑制的噪声抑制方法和装置。通过将输入信号变换为频域信号来抑制输入信号中包含的噪声; 对频域信号进行积分以确定积分的频域信号; 基于积分的频域信号确定估计噪声; 基于估计的噪声和所述积分的频域信号确定频谱增益; 并且通过光谱增益对所述频域信号进行加权。

2. 发明申请

US20120033828A1 Signal Processing Method and Apparatus, and Recording Medium in Which a Signal Processing Program is Recorded 有权
标题翻译：信号处理方法和装置以及记录信号处理程序的记录介质
公开(公告)号：US20120033828A1
公开(公告)日：2012-02-09
申请号：US13273322
申请日：2011-10-14
申请人： Akihiko Sugiyama , Masanori Kato
发明人： Akihiko Sugiyama , Masanori Kato
IPC分类号： H04B15/00
CPC分类号： G10L21/0208 , G10L19/265
摘要： A signal processing method for converting a signal received via a transmission path or read from a storage medium into a first audible signal, and suppressing a noise other than a desired signal contained in the first audible signal based on predetermined audio quality adjustment information, comprising steps of: in suppressing a noise other than a desired signal contained in the first audible signal to generate an enhanced signal, receiving audio quality adjustment information for adjusting audio quality; and adjusting audio quality of the enhanced signal using the audio quality adjustment information
摘要翻译：一种信号处理方法，用于将经由传输路径接收的信号或从存储介质读取的信号转换为第一可听信号，并且基于预定的音频质量调整信息抑制除了包含在第一可听信号中的期望信号之外的噪声，信号处理方法包括步骤：在抑制除了包含在第一可听信号中的期望信号之外的噪声以产生增强信号，接收用于调节音频质量的音频质量调整信息; 以及使用音频质量调整信息来调整增强信号的音频质量

3. 发明授权

US07590528B2 Method and apparatus for noise suppression 有权
标题翻译：用于噪声抑制的方法和装置
公开(公告)号：US07590528B2
公开(公告)日：2009-09-15
申请号：US10451141
申请日：2001-12-27
申请人： Masanori Kato , Akihiko Sugiyama
发明人： Masanori Kato , Akihiko Sugiyama
IPC分类号： G10L21/02 , G10L15/20
CPC分类号： G10L21/0208 , G10L21/0232 , H03H21/0012
摘要： An apparatus for noise suppression has a converter for converting an input signal into a frequency-domain, an SNR calculator for determining a signal-to-noise ratio (SNR) using the frequency-domain signal, a spectral gain generator for determining a spectral gain based on the SNR, a spectral gain modification unit for correcting the spectral gain to determine a modified spectral gain, a multiplier for weighting the frequency-domain signal using the modified spectral gain, and an inverse converter for converting the weighted frequency-domain signal into a signal in a time-domain signal. In the apparatus for noise suppression, it is preferable to calculate a weighted noisy speech power spectrum from the power spectrum of noisy speech and the power spectrum of estimated noise thereby determining an SNR.
摘要翻译：用于噪声抑制的装置具有用于将输入信号转换为频域的转换器，用于使用频域信号确定信噪比（SNR）的SNR计算器，用于确定频谱增益的频谱增益发生器基于所述SNR，用于校正所述频谱增益以确定修改的频谱增益的频谱增益修正单元，使用所述修改的频谱增益对所述频域信号进行加权的乘法器，以及用于将所述加权的频域信号转换成时域信号中的信号。在噪声抑制装置中，优选从噪声语音的功率谱和估计噪声的功率谱计算加权噪声语音功率谱，从而确定SNR。

4. 发明授权

US08804980B2 Signal processing method and apparatus, and recording medium in which a signal processing program is recorded 有权
标题翻译：信号处理方法和装置以及其中记录信号处理程序的记录介质
公开(公告)号：US08804980B2
公开(公告)日：2014-08-12
申请号：US13273322
申请日：2011-10-14
申请人： Akihiko Sugiyama , Masanori Kato
发明人： Akihiko Sugiyama , Masanori Kato
IPC分类号： H04B15/00
CPC分类号： G10L21/0208 , G10L19/265
摘要： A signal processing method for converting a signal received via a transmission path or read from a storage medium into a first audible signal, and suppressing a noise other than a desired signal contained in the first audible signal based on predetermined audio quality adjustment information, comprising steps of: in suppressing a noise other than a desired signal contained in the first audible signal to generate an enhanced signal, receiving audio quality adjustment information for adjusting audio quality; and adjusting audio quality of the enhanced signal using the audio quality adjustment information.
摘要翻译：一种信号处理方法，用于将经由传输路径接收的信号或从存储介质读取的信号转换为第一可听信号，并且基于预定的音频质量调整信息抑制除了包含在第一可听信号中的期望信号之外的噪声，信号处理方法包括步骤：在抑制除了包含在第一可听信号中的期望信号之外的噪声以产生增强信号，接收用于调节音频质量的音频质量调整信息; 以及使用音频质量调整信息来调整增强信号的音频质量。

5. 发明授权

US08160873B2 Method and apparatus for noise suppression 有权
标题翻译：用于噪声抑制的方法和装置
公开(公告)号：US08160873B2
公开(公告)日：2012-04-17
申请号：US11442663
申请日：2006-05-30
申请人： Masanori Kato , Akihiko Sugiyama
发明人： Masanori Kato , Akihiko Sugiyama
IPC分类号： G10L21/00 , G10L11/00
CPC分类号： G10L21/0208 , G10L21/0216
摘要： In a noise suppression apparatus for suppressing noise contained in a speech signal, the speech signal is converted to a first vector of spectral speech components and a second vector of spectral speech components identical to the first vector. A vector of noise suppression coefficients is determined based on the first vector spectral speech components. A vector of estimated noise components is determined based on the first vector spectral speech components, and a speech section correction factor and a nonspeech section correction factor are calculated from the estimated noise components and the first-vector spectral speech components to produce a combined correction factor. The noise suppression coefficients are weighted by the combined correction factor to produce a vector of post-suppression coefficients. The second vector spectral speech components are weighted by the post-suppression coefficients to produce a vector of enhanced speech components.
摘要翻译：在用于抑制语音信号中包含的噪声的噪声抑制装置中，语音信号被转换为频谱语音分量的第一矢量和与第一矢量相同的频谱语音分量的第二矢量。基于第一矢量光谱语音分量来确定噪声抑制系数的矢量。基于第一矢量光谱语音分量来确定估计噪声分量的向量，并且根据估计的噪声分量和第一矢量频谱语音分量计算语音部分校正因子和非相似部分校正因子，以产生组合校正因子。噪声抑制系数由组合校正因子加权，以产生后抑制系数的向量。第二矢量频谱语音分量由后抑制系数加权，以产生增强语音分量的向量。

6. 发明授权

US08078460B2 Method and apparatus for noise suppression 有权
公开(公告)号：US08078460B2
公开(公告)日：2011-12-13
申请号：US11442663
申请日：2006-05-30
申请人： Masanori Kato , Akihiko Sugiyama
发明人： Masanori Kato , Akihiko Sugiyama
IPC分类号： G10L21/00 , G10L11/00
摘要： In a noise suppression apparatus for suppressing noise contained in a speech signal, the speech signal is converted to a first vector of spectral speech components and a second vector of spectral speech components identical to the first vector. A vector of noise suppression coefficients is determined based on the first vector spectral speech components. A vector of estimated noise components is determined based on the first vector spectral speech components, and a speech section correction factor and a nonspeech section correction factor are calculated from the estimated noise components and the first-vector spectral speech components to produce a combined correction factor. The noise suppression coefficients are weighted by the combined correction factor to produce a vector of post-suppression coefficients. The second vector spectral speech components are weighted by the post-suppression coefficients to produce a vector of enhanced speech components.

7. 发明授权

US09318119B2 Noise suppression using integrated frequency-domain signals 有权
标题翻译：使用集成频域信号进行噪声抑制
公开(公告)号：US09318119B2
公开(公告)日：2016-04-19
申请号：US11794563
申请日：2006-08-29
申请人： Akihiko Sugiyama , Masanori Kato
发明人： Akihiko Sugiyama , Masanori Kato
IPC分类号： G10L21/0208 , G10L19/02 , G10L21/0216
CPC分类号： G10L21/0208 , G10L19/0204 , G10L21/0216
摘要： To provide a noise suppressing method and apparatus capable of achieving high-quality noise suppression using a lower amount of operations. Noise contained in an input signal is suppressed by transforming the input signal into frequency-domain signals; integrating bands of the frequency-domain signals to determine integrated frequency-domain signals; determining estimated noise based on the integrated frequency-domain signals; determining spectral gains based on the estimated noise and said integrated frequency-domain signals; and weighting said frequency-domain signals by the spectral gains.
摘要翻译：提供能够使用较少量的操作来实现高质量噪声抑制的噪声抑制方法和装置。通过将输入信号变换为频域信号来抑制输入信号中包含的噪声; 对频域信号进行积分以确定积分的频域信号; 基于积分的频域信号确定估计噪声; 基于估计的噪声和所述积分的频域信号确定频谱增益; 并且通过光谱增益对所述频域信号进行加权。

8. 发明授权

US10811026B2 Noise suppression method, device, and program 有权
公开(公告)号：US10811026B2
公开(公告)日：2020-10-20
申请号：US12307542
申请日：2007-06-29
申请人： Akihiko Sugiyama
发明人： Akihiko Sugiyama
IPC分类号： G10L21/02 , G10L21/0208 , G10L21/0216
摘要： It is possible to provide a noise suppression method, device, and program capable of realizing a sound image positioning of an output side corresponding to an input side with a small calculation amount. The device includes a common suppression coefficient calculation unit for receiving conversion outputs from a plurality of channels and calculating a suppression coefficient common to the channels.

9. 发明授权

US09613632B2 Signal processing device, signal processing method and signal processing program 有权
公开(公告)号：US09613632B2
公开(公告)日：2017-04-04
申请号：US13878943
申请日：2011-09-26
申请人： Akihiko Sugiyama
发明人： Akihiko Sugiyama
IPC分类号： G10L21/00 , G10L21/0208 , H04M9/08 , G10L21/0216
CPC分类号： G10L21/0208 , G10L2021/02165 , H04M9/082
摘要： To achieve sufficient noise cancellation when a reference signal cannot be captured in the proximity of a noise source.The present invention is characterized by comprising: a first input means for obtaining a first mixed signal in which a first signal and a second signal are mixed; a second input means for obtaining a second mixed signal in which the first signal and the second signal are mixed in a different ratio from the first mixed signal; a delay means for generating a delayed first mixed signal by delaying the first mixed signal with a delay amount based on transmission distance from a generation source of the second signal to the second input means; a subtracting means for outputting an estimated first signal in which a pseudo second signal is subtracted from the delayed first mixed signal; and an adaptive filtering means for generating the pseudo second signal applying coefficients which are updated based on the estimated first signal to the second mixed signal.

10. 发明申请

US20130282370A1 SPEECH PROCESSING APPARATUS, CONTROL METHOD THEREOF, STORAGE MEDIUM STORING CONTROL PROGRAM THEREOF, AND VEHICLE, INFORMATION PROCESSING APPARATUS, AND INFORMATION PROCESSING SYSTEM INCLUDING THE SPEECH PROCESSING APPARATUS 审中-公开
标题翻译：语音处理装置，其控制方法，存储媒体存储控制程序及车辆信息处理装置以及包括语音处理装置的信息处理系统
公开(公告)号：US20130282370A1
公开(公告)日：2013-10-24
申请号：US13978446
申请日：2011-12-03
申请人： Takayuki Arakawa , Akihiko Sugiyama
发明人： Takayuki Arakawa , Akihiko Sugiyama
IPC分类号： G10L21/0208
CPC分类号： G10L21/0208 , G10L15/20 , G10L21/0216 , H04R1/342 , H04R3/005 , H04R2410/05 , H04R2499/11 , H04R2499/13
摘要： An apparatus of this invention is a speech processing apparatus that acquires pseudo speech from a mixture sound including desired speech and noise. The speech processing apparatus includes a first microphone that inputs a first mixture sound including desired speech and noise and outputs a first mixture signal, a second microphone that is opened to the same sound space as that of the first microphone, inputs a second mixture sound including the desired speech and the noise at a ratio different from the first mixture sound, and outputs a second mixture signal, a first sound collector including a concave surface that collects the first mixture sound to the first microphone, a second sound collector including a concave surface that collects the second mixture sound to the second microphone and disposed in a direction different from the first sound collector, and a noise suppression circuit that suppresses an estimated noise signal based on the first mixture signal and the second mixture signal and outputs a pseudo speech signal. With this arrangement, it is possible to, in a single sound space where desired speech and noise mix, collect the desired speech and the noise, correctly estimate the noise, and reconstruct pseudo speech close to the desired speech.
摘要翻译：本发明的装置是从包含所需语音和噪声的混合声音中获取伪语音的语音处理装置。语音处理装置包括第一麦克风，其输入包括所需语音和噪声的第一混合声音并输出第一混合信号，打开到与第一麦克风相同的声音空间的第二麦克风输入包括以与第一混合声音不同的比例的期望语音和噪声，并且输出第二混合信号，包括收集第一混合声音的凹面的第一收音器到第一麦克风，第二声音收集器，包括凹面其将第二混合声音收集到第二麦克风并且设置在与第一声音收集器不同的方向上;噪声抑制电路，其基于第一混合信号和第二混合信号抑制估计的噪声信号，并输出伪语音信号。通过这种布置，可以在需要的语音和噪声混合的单个声音空间中收集所需的语音和噪声，正确地估计噪声，并重建接近期望语音的伪语音。

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