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    • 1. 发明申请
    • Compensation Filtering Device and Method Thereof
    • 补偿过滤装置及其方法
    • US20120158809A1
    • 2012-06-21
    • US13178184
    • 2011-07-07
    • Toshifumi YamamotoYasuhiro Kanishima
    • Toshifumi YamamotoYasuhiro Kanishima
    • G06F17/10
    • H04R3/04H04R29/001
    • According to one embodiment, a compensation filtering device includes an impulse response calculator, a coefficient calculator, and an adder. The impulse response calculator calculates an impulse response of a reproduction system comprising a sound field. The coefficient calculator calculates a compensation coefficient to compensate for a tap coefficient such that a direct current gain of an extracted finite impulse response (FIR) filter with a predetermine number of taps extracted from an FIR filter having reverse characteristics of the impulse response takes a predetermined value. The tap coefficient indicates a weight of each of the taps. The adder adds the compensation coefficient to the tap coefficient of each of the taps of the extracted FIR filter to generate a compensation filter to compensate for acoustic characteristics of the reproduction system.
    • 根据一个实施例,补偿滤波装置包括脉冲响应计算器,系数计算器和加法器。 脉冲响应计算器计算包括声场的再现系统的脉冲响应。 系数计算器计算补偿系数以补偿抽头系数,使得从具有脉冲响应的反向特性的FIR滤波器提取的具有预定数量的抽头的提取的有限脉冲响应(FIR)滤波器的直流增益采用预定的 值。 抽头系数表示每个抽头的重量。 加法器将补偿系数与提取的FIR滤波器的每个抽头的抽头系数相加,以产生补偿滤波器,以补偿再现系统的声学特性。
    • 2. 发明授权
    • Acoustic correction apparatus and acoustic correction method
    • 声校正装置和声校正方法
    • US08050421B2
    • 2011-11-01
    • US12775973
    • 2010-05-07
    • Takashi FukudaToshifumi YamamotoNorikatsu ChibaYasuhiro KanishimaKazuyuki Saito
    • Takashi FukudaToshifumi YamamotoNorikatsu ChibaYasuhiro KanishimaKazuyuki Saito
    • H04B15/00
    • H04R1/1083H04R1/1075H04R3/04
    • According to one embodiment, an acoustic correction apparatus includes: a signal obtaining module configured to obtain an acoustic signal from a target space including an object and an external space; a signal output module configured to output to the target space a measurement signal; a coefficient identifying module configured to identify, on the basis of a response acoustic signal, a correction coefficient of a correction filter that reduces a resonance frequency component of a resonance in the object; a filtering module configured to use the correction filter, and filter the signal provided to the object; a noise cancelling module configured to remove, on the basis of the acoustic signal, a noise component comprised in the acoustic signal from the filtered signal; and an output module configured to output the acoustic signal, from which the noise component is removed by the noise cancelling module, to the object.
    • 根据一个实施例,声学校正装置包括:信号获取模块,被配置为从包括对象和外部空间的目标空间获得声信号; 信号输出模块,被配置为向所述目标空间输出测量信号; 系数识别模块,被配置为基于响应声学信号识别减少所述对象中的共振的共振频率分量的校正滤波器的校正系数; 被配置为使用所述校正滤波器并对提供给所述对象的信号进行滤波的滤波模块; 噪声消除模块,被配置为基于所述声学信号从所述滤波信号中去除包括在所述声学信号中的噪声分量; 以及输出模块,被配置为将噪声分量被噪声消除模块从其去除的声信号输出到对象。
    • 5. 发明授权
    • Sound signal compensation apparatus and method thereof
    • 声音信号补偿装置及其方法
    • US08577051B2
    • 2013-11-05
    • US13093601
    • 2011-04-25
    • Kimio MisekiNorikatsu ChibaYasuhiro Kanishima
    • Kimio MisekiNorikatsu ChibaYasuhiro Kanishima
    • A61F11/06G10K11/16H03B29/00
    • H04R3/04
    • According to one embodiment, a sound signal compensation apparatus includes an input module, a compensation module, and an output module. The input module receives identification information identifying a first frequency with regard to a resonance of an ear closed by an earphone or headphone. The compensation module performs first compensation emphasizing a second frequency on a sound signal, the second frequency being determined based on the identification information or the first frequency. The output module outputs the compensated sound signal. The compensation module is configured to perform the first compensation emphasizing the second frequency, at which emphasis is greater than or equal to 2 dB and less than or equal to 12 dB.
    • 根据一个实施例,声音信号补偿装置包括输入模块,补偿模块和输出模块。 输入模块接收关于由耳机或耳机关闭的耳朵的共振识别第一频率的识别信息。 补偿模块执行强调声音信号的第二频率的第一补偿,第二频率是基于识别信息或第一频率确定的。 输出模块输出补偿后的声音信号。 补偿模块被配置为执行强调第二频率的第一补偿,其中强调大于或等于2dB且小于或等于12dB。
    • 6. 发明申请
    • Compensation Filtering Device and Method Thereof
    • 补偿过滤装置及其方法
    • US20120155673A1
    • 2012-06-21
    • US13218088
    • 2011-08-25
    • Toshifumi YAMAMOTOYasuhiro KANISHIMA
    • Toshifumi YAMAMOTOYasuhiro KANISHIMA
    • H04B15/00
    • H04R3/04H04R2499/11H04R2499/15
    • According to one embodiment, a compensation filtering device includes an impulse response calculator, a group delay compensator, and an extractor. The impulse response calculator calculates an impulse response of a reproduction system comprising a sound field. The group delay compensator compensates for group delay characteristics in a low frequency range lower than a predetermined frequency for a finite impulse response (FIR) filter having reverse characteristics of the impulse response based on group delay characteristics in a middle to high frequency range higher than the predetermined frequency. The extractor extracts a predetermined number of taps from the FIR filter that has been compensated for by the group delay compensator.
    • 根据一个实施例,补偿滤波装置包括脉冲响应计算器,组延迟补偿器和提取器。 脉冲响应计算器计算包括声场的再现系统的脉冲响应。 组延迟补偿器对于具有基于脉冲响应的反特性的有限脉冲响应(FIR)滤波器在低于预定频率的低频范围内的组延迟特性进行补偿,所述有限脉冲响应(FIR)滤波器基于在高于 预定频率。 提取器从组延迟补偿器补偿的FIR滤波器提取预定数量的抽头。
    • 7. 发明申请
    • AUDIO SIGNAL COMPENSATION DEVICE AND AUDIO SIGNAL COMPENSATION METHOD
    • 音频信号补偿装置和音频信号补偿方法
    • US20110158427A1
    • 2011-06-30
    • US12963475
    • 2010-12-08
    • Norikatsu ChibaKimio MisekiYasuhiro KanishimaKazuyuki SaitoToshifumi YamamotoTakashi Fukuda
    • Norikatsu ChibaKimio MisekiYasuhiro KanishimaKazuyuki SaitoToshifumi YamamotoTakashi Fukuda
    • H04B15/00
    • H04R3/04
    • An audio signal compensation device includes: a signal processor configured to perform filtering on an input audio signal; a filter coefficients storage module configured to store a plurality of filter coefficients; a user interface configured to provide options for a determination of filter coefficients to a user and to obtain a selection result from the user; and a filter coefficients determining module configured to determine a set of filter coefficients among the plurality of filter coefficients based on the selection result. The options for the determination of filter coefficients are produced by selecting a first filter coefficient and a second filter coefficient from the plurality of filter coefficients, the first filter coefficient corresponding to a first characteristic quantity of external auditory canal characteristics, the second filter coefficient corresponding to a second characteristic quantity of the external auditory canal characteristics which is predicted based on the first characteristic quantity.
    • 音频信号补偿装置包括:信号处理器,被配置为对输入音频信号执行滤波; 滤波器系数存储模块,被配置为存储多个滤波器系数; 用户界面,被配置为提供用于确定用户的滤波器系数的选项并从用户获得选择结果; 以及滤波器系数确定模块,被配置为基于所述选择结果确定所述多个滤波器系数中的一组滤波器系数。 用于确定滤波器系数的选项通过从多个滤波器系数中选择第一滤波器系数和第二滤波器系数来产生,第一滤波系数对应于外耳道特征的第一特征量,第二滤波系数对应于 基于第一特征量预测的外耳道特征的第二特征量。
    • 10. 发明申请
    • Audio Correction Apparatus and Audio Correction Method
    • 音频校正装置和音频校正方法
    • US20120134502A1
    • 2012-05-31
    • US13172654
    • 2011-06-29
    • Yasuhiro KanishimaToshifumi YamamotoTakanobu Mukaide
    • Yasuhiro KanishimaToshifumi YamamotoTakanobu Mukaide
    • H04R29/00
    • H04R29/001H04R3/04
    • According to one embodiment, audio correction apparatus connected to audio player, includes output module configured to output audio signal as sound, and filter configured to correct the audio signal based on tap coefficient is provided. The apparatus includes, audio measurement module configured to pick up plurality of recording signals obtained by recording sound output from output module at detection points located at different points, audio analyzer configured to calculate plurality of frequency responses based on plurality of recording signals obtained by audio measurement module, and audio correction module configured to calculate maximum amplitude response by specifying maximum amplitude for each of frequencies, to calculate average group delay property for each of frequencies, to calculate tap coefficient based on maximum amplitude and average group delay property, and to output tap coefficient to filter of audio player.
    • 根据一个实施例,连接到音频播放器的音频校正装置包括被配置为输出音频信号作为声音的输出模块,并且提供了基于抽头系数校正音频信号的滤波器。 该装置包括:音频测量模块,被配置为拾取通过在位于不同点的检测点处记录从输出模块输出的声音获得的多个记录信号,音频分析器被配置为基于通过音频测量获得的多个记录信号来计算多个频率响应 模块和音频校正模块,被配置为通过为每个频率指定最大幅度来计算最大振幅响应,以计算每个频率的平均组延迟特性,以基于最大振幅和平均组延迟特性计算抽头系数,并输出抽头 系数过滤音频播放器。