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    • 1. 发明申请
    • ACOUSTIC CORRECTION APPARATUS, AUDIO OUTPUT APPARATUS, AND ACOUSTIC CORRECTION METHOD
    • 声学校正装置,音频输出装置和声学校正方法
    • US20120002823A1
    • 2012-01-05
    • US13044327
    • 2011-03-09
    • Yasuhiro KANISHIMATakanobu MukaideToshifumi Yamamoto
    • Yasuhiro KANISHIMATakanobu MukaideToshifumi Yamamoto
    • H03G5/00
    • H03G9/025H04S7/305
    • According to one embodiment, an acoustic correction apparatus includes an input module, a calculator, a divider, a converter, an extractor, a synthesizer, and a generator. The input module receives an audio signal propagated through a sound field. The calculator calculates an impulse response from the audio signal. The divider divides the impulse response into first and second impulse responses. The converter converts the first and second impulse responses into first and second frequency spectrums. The extractor specifies an amplitude component of the first frequency spectrum with a peak relatively higher than that of the amplitude component of the first frequency spectrum, and extracts the peak as a resonance component. The synthesizer synthesizes a first property and a second property for attenuating the resonance component. The generator generates a correction filter for performing correction to obtain the synthesized property.
    • 根据一个实施例,声学校正装置包括输入模块,计算器,分频器,转换器,提取器,合成器和发生器。 输入模块接收通过声场传播的音频信号。 计算器从音频信号计算脉冲响应。 分频器将脉冲响应分为第一和第二脉冲响应。 转换器将第一和第二脉冲响应转换成第一和第二频谱。 提取器以相对高于第一频谱的振幅分量的峰值来指定第一频谱的振幅分量,并将峰值提取为谐振分量。 合成器合成用于衰减共振分量的第一特性和第二特性。 发生器产生用于执行校正以获得合成特性的校正滤波器。
    • 4. 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。
    • 6. 发明申请
    • ACOUSTIC CORRECTION APPARATUS AND ACOUSTIC CORRECTION METHOD
    • 声学校正装置和声学校正方法
    • US20100329481A1
    • 2010-12-30
    • 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。
    • 8. 发明申请
    • SIGNAL PROCESSING APPARATUS, SOUND APPARATUS, AND SIGNAL PROCESSING METHOD
    • 信号处理设备,声音设备和信号处理方法
    • US20100274369A1
    • 2010-10-28
    • US12698736
    • 2010-02-02
    • Yasuhiro KANISHIMAToshifumi YAMAMOTONorikatsu CHIBAKazuyuki SAITOTakashi FUKUDA
    • Yasuhiro KANISHIMAToshifumi YAMAMOTONorikatsu CHIBAKazuyuki SAITOTakashi FUKUDA
    • G06F17/00
    • H04R1/1083
    • According to one embodiment, a signal processing apparatus, includes: an output module configured to output a sound source signal to an external environment; a receiver configured to receive a response signal responding to the sound source signal output by the output module; an extracting module configured to extract a noise component signal from the response signal received by the receiver using an inverse filtering process of a frequency characteristic, the frequency characteristic being set in advance by dividing a measurement response signal responding to a measurement sound source signal used to measure the external environment from the measurement source signal, the measurement source signal being one of the sound source signal output by the output module; and a removing module configured to remove the noise component signal from the sound source signal output by the output module after the extraction of the noise component signal.
    • 根据一个实施例,信号处理装置包括:输出模块,被配置为将声源信号输出到外部环境; 接收器,被配置为接收响应于由所述输出模块输出的声源信号的响应信号; 提取模块,被配置为使用频率特性的逆滤波处理从接收机接收到的响应信号中提取噪声分量信号,频率特性通过将响应于测量声源信号的测量响应信号除以用于 从测量源信号测量外部环境,测量源信号是输出模块输出的声源信号之一; 以及移除模块,被配置为在提取噪声分量信号之后从输出模块输出的声源信号中去除噪声分量信号。
    • 10. 发明申请
    • Sound Signal Compensation Apparatus and Method Thereof
    • 声音信号补偿装置及其方法
    • US20110261971A1
    • 2011-10-27
    • US13093601
    • 2011-04-25
    • Kimio MISEKINorikatsu CHIBAYasuhiro KANISHIMA
    • Kimio MISEKINorikatsu CHIBAYasuhiro KANISHIMA
    • G10K11/16
    • 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。