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公开(公告)号：US20120134502A1
公开(公告)日：2012-05-31
申请号：US13172654
申请日：2011-06-29
IPC分类号： H04R29/00
CPC分类号： H04R29/001 , H04R3/04
摘要： 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.
摘要翻译： 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。
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2.发明申请APPARATUS FOR REPRODUCING DATA ON RECORDING MEDIUM AND METHOD FOR REPRODUCING DATA ON THE MEDIUM 审中-公开用于在记录介质上再现数据的装置和用于在介质上再现数据的方法公开(公告)号：US20080019249A1
公开(公告)日：2008-01-24
申请号：US11771906
申请日：2007-06-29
申请人： Yukiyasu Tatsuzawa , Hideyuki Yamakawa , Koichi Otake , Norikatsu Chiba , Yasuhiro Kanishima , Toshifumi Yamamoto , Toshihiko Kaneshige
发明人： Yukiyasu Tatsuzawa , Hideyuki Yamakawa , Koichi Otake , Norikatsu Chiba , Yasuhiro Kanishima , Toshifumi Yamamoto , Toshihiko Kaneshige
IPC分类号： G11B5/09
CPC分类号： G11B20/10009 , G11B20/10046 , G11B20/10055 , G11B20/10212 , G11B20/10296
摘要： An apparatus for reproducing digital data recorded on a recording medium by a Partial Response Maximum Likelihood method, the digital data being recorded in a code pattern in which the same code continuously appears at least two times, includes an analog-to-digital converting unit that samples an analog reproduction signal recorded on the recording medium and converts the sampled analog reproduction signal into a digital signal; a sampling rate switching unit that adaptively switches the sampling rate in the analog-to-digital converting unit from a higher rate to a lower rate; and a data demodulating unit that reproduces and demodulates the digital signal subjected to the analog-to-digital conversion in the analog-to-digital converting unit by the Partial Response Maximum Likelihood method in accordance with the switching between the higher rate and the lower rate.
摘要翻译： 一种用于通过部分响应最大似然方法再现记录在记录介质上的数字数据的装置，所述数字数据以相同代码连续出现至少两次的代码模式被记录，包括模数转换单元，模数转换单元 采样记录在记录介质上的模拟再现信号，并将采样的模拟再现信号转换为数字信号; 采样率切换单元，其自适应地将模数转换单元中的采样率从较高速率切换到较低速率; 以及数据解调单元，其通过部分响应最大似然方法根据较高速率和较低速率之间的切换再现和解调在模数转换单元中经受模数转换的数字信号 。
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公开(公告)号：US20120158809A1
公开(公告)日：2012-06-21
申请号：US13178184
申请日：2011-07-07
IPC分类号： G06F17/10
CPC分类号： H04R3/04 , H04R29/001
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US08050421B2
公开(公告)日：2011-11-01
申请号：US12775973
申请日：2010-05-07
IPC分类号： H04B15/00
CPC分类号： H04R1/1083 , H04R1/1075 , H04R3/04
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US07957549B2
公开(公告)日：2011-06-07
申请号：US12634424
申请日：2009-12-09
申请人： Norikatsu Chiba , Toshifumi Yamamoto , Takashi Fukuda , Yasuhiro Kanishima , Shigeyasu Iwata , Kazuyuki Saito , Yutaka Oki
发明人： Norikatsu Chiba , Toshifumi Yamamoto , Takashi Fukuda , Yasuhiro Kanishima , Shigeyasu Iwata , Kazuyuki Saito , Yutaka Oki
CPC分类号： H04R1/1041 , H03F2200/03 , H04R1/1016 , H04R5/027 , H04R5/033
摘要： According to one embodiment, an acoustic apparatus comprises an electro-acoustic transducer with a first function of converting an electric signal to an acoustic signal and a second function of converting an acoustic signal to an electric signal, the electro-acoustic transducer configured to convert a measuring electric signal to a measuring acoustic signal using the first function, and to convert an acoustic response signal responding to the measuring acoustic signal from an object to an electric response signal using the second function, a switch configured to switch the first function to the second function, or vice versa, and a switch controller configured to control a function switching of the switch in accordance with a sound source signal.
摘要翻译： 根据一个实施例，声学设备包括具有将电信号转换为声信号的第一功能的电声换能器和将声信号转换为电信号的第二功能，所述电声换能器被配置为将 使用第一功能将电信号测量到测量声信号，并且使用第二功能将响应于来自对象的测量声信号的声响应信号转换为电响应信号;开关，被配置为将第一功能切换到第二功能 功能，反之亦然;以及开关控制器，被配置为根据声源信号控制开关的功能切换。
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公开(公告)号：US20110158427A1
公开(公告)日：2011-06-30
申请号：US12963475
申请日：2010-12-08
申请人： Norikatsu Chiba , Kimio Miseki , Yasuhiro Kanishima , Kazuyuki Saito , Toshifumi Yamamoto , Takashi Fukuda
发明人： Norikatsu Chiba , Kimio Miseki , Yasuhiro Kanishima , Kazuyuki Saito , Toshifumi Yamamoto , Takashi Fukuda
IPC分类号： H04B15/00
CPC分类号： H04R3/04
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20100166218A1
公开(公告)日：2010-07-01
申请号：US12543265
申请日：2009-08-18
申请人： Kazuyuki Saito , Toshifumi Yamamoto , Norikatsu Chiba , Shigeyasu Iwata , Yasuhiro Kanishima , Takashi Fukuda , Yutaka Oki
发明人： Kazuyuki Saito , Toshifumi Yamamoto , Norikatsu Chiba , Shigeyasu Iwata , Yasuhiro Kanishima , Takashi Fukuda , Yutaka Oki
IPC分类号： H03G5/00
CPC分类号： H03G3/3094 , H03G5/165
摘要： According to one embodiment, a sound processor includes a creating module, a filter, and a combining module. The creating module creates a plurality of first acoustic models based on a frequency characteristic that represents an acoustic property of an object to be measured. The first acoustic models are modeled with respect to resonance properties that vary depending on frequency bands. The filter extracts frequency components in the frequency bands from the respective first acoustic models. The combining module combines the frequency components extracted from the first acoustic models to create a second acoustic model.
摘要翻译： 根据一个实施例，声音处理器包括创建模块，滤波器和组合模块。 创建模块基于表示待测对象的声学属性的频率特性来创建多个第一声学模型。 关于根据频带变化的谐振特性来建模第一声学模型。 滤波器从相应的第一声学模型中提取频带中的频率分量。 组合模块组合从第一声学模型提取的频率分量以产生第二声学模型。
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公开(公告)号：US20090316919A1
公开(公告)日：2009-12-24
申请号：US12473862
申请日：2009-05-28
IPC分类号： H04R29/00
CPC分类号： H04R29/00
摘要： According to one embodiment, an acoustic characteristic correction apparatus comprises a main module reproducing an audio signal and a remote controller includes a microphone, wherein the main module comprises a generation module generating a measurement signal, a receiver receiving a picked-up signal output from the microphone receiving the measurement signal, a detector module detecting acoustic characteristics based on the picked-up signal, a processor module obtaining correction characteristics based on the acoustic characteristics, and a correction module correcting the audio signal based on the correction characteristics.
摘要翻译： 根据一个实施例，声学特性校正装置包括：重放音频信号的主模块，并且遥控器包括麦克风，其中主模块包括产生测量信号的发生模块，接收从所述麦克风输出的拾取信号的接收器 接收测量信号的麦克风，基于拾取信号检测声学特性的检测器模块，基于声学特性获得校正特性的处理器模块，以及基于校正特性校正音频信号的校正模块。
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9.发明授权公开(公告)号：US08767977B2
公开(公告)日：2014-07-01
申请号：US13072196
申请日：2011-03-25
IPC分类号： H03G5/00
CPC分类号： H04R3/04 , H04N5/60 , H04N21/439 , H04R29/001 , H04S7/301 , H04S7/307
摘要： According to one embodiment, an acoustic characteristic correction coefficient calculation apparatus includes a frequency converter, a smoother, a frequency inverter, a cutter, and a calculator. The frequency converter is configured to convert a first impulse response corresponding to an input acoustic signal to a frequency domain. The smoother is configured to smooth amplitude and phase corresponding to the frequency domain converted by the frequency converter. The frequency inverter is configured to convert a frequency characteristic smoothed by the smoother to a time domain. The cutter is configured to cut out a second impulse response configured by the time domain obtained by converting the frequency characteristic by use of the frequency inverter by a preset tap number. The calculator is configured to calculate a correction coefficient used to correct an acoustic characteristic based on a result cut out by the cutter.
摘要翻译： 根据一个实施例，声学特性校正系数计算装置包括变频器，平滑器，变频器，切割器和计算器。 变频器被配置为将对应于输入声信号的第一脉冲响应转换为频域。 平滑器被配置为平滑对应于由变频器转换的频域的幅度和相位。 变频器被配置为将由平滑器平滑的频率特性转换为时域。 切割器被配置为切除由通过使用变频器通过预设抽头号转换频率特性而获得的时域所配置的第二脉冲响应。 计算器被配置为基于由切割器切出的结果来计算用于校正声学特性的校正系数。
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10.发明授权Acoustic correction apparatus, audio output apparatus, and acoustic correction method 有权声校正装置，音频输出装置和声校正方法公开(公告)号：US08498429B2
公开(公告)日：2013-07-30
申请号：US13044327
申请日：2011-03-09
摘要： 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.
摘要翻译： 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。
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