Impulse Response Measurement Method and Device
    1.
    发明申请
    Impulse Response Measurement Method and Device 审中-公开
    脉冲响应测量方法和装置

    公开(公告)号:US20080025521A1

    公开(公告)日:2008-01-31

    申请号:US11658099

    申请日:2005-07-12

    IPC分类号: H04R29/00

    CPC分类号: H04R29/00 G01H3/00 G01H15/00

    摘要: A method, device, system, program and recording medium for impulse response measurement which can improve a measurement accuracy without lowering the S/N ratio over the whole range, from lower frequencies to higher frequencies, of a measuring signal are provided. A signal generation unit (21) of a device for impulse response measurement (10-1) generates a W-TSP signal (x(t)) having characteristics of a TSP signal and a Log-TSP signal. A D/A conversion unit (22) converts the digital signal (x(t)) into an analog signal (x(t)) and outputs the converted signal to a headphone (2) or a speaker (5). An A/D conversion unit (23) inputs an analog signal (y(t)) received by a microphone (3) or a microphone (6) and converts the inputted signal into a digital signal (y(t)). An inverse signal generation unit (24) generates an inverse W-TSP signal (x(t)). A convolution unit (25) convolutes the signal (y(t)) and the inverse W-TSP signal (x−1(t)) thereby to calculate an impulse response (g(t)).

    摘要翻译: 提供了用于脉冲响应测量的方法,装置,系统,程序和记录介质,其可以在不降低测量信号的低频到更高频率的整个范围上的S / N比的情况下提高测量精度。 用于脉冲响应测量(10-1)的装置的信号产生单元(21)产生具有TSP信号和Log-TSP信号特性的W-TSP信号(x(t))。 D / A转换单元(22)将数字信号(x(t))转换为模拟信号(x(t)),并将转换的信号输出到耳机(2)或扬声器(5)。 A / D转换单元(23)输入由麦克风(3)或麦克风(6)接收的模拟信号(y(t)),并将输入的信号转换为数字信号(y(t))。 逆信号生成单元(24)生成逆W-TSP信号(x(t))。 卷积单元(25)对信号(y(t))和逆W-TSP信号(x -1(t))进行卷积,从而计算脉冲响应(g(t))。

    PERIODIC SIGNAL PROCESSING METHOD,PERIODIC SIGNAL CONVERSION METHOD,PERIODIC SIGNAL PROCESSING DEVICE, AND PERIODIC SIGNAL ANALYSIS METHOD
    2.
    发明申请
    PERIODIC SIGNAL PROCESSING METHOD,PERIODIC SIGNAL CONVERSION METHOD,PERIODIC SIGNAL PROCESSING DEVICE, AND PERIODIC SIGNAL ANALYSIS METHOD 有权
    周期信号处理方法,周期信号转换方法,周期信号处理装置和周期信号分析方法

    公开(公告)号:US20110015931A1

    公开(公告)日:2011-01-20

    申请号:US12669533

    申请日:2008-07-18

    IPC分类号: G10L13/00

    摘要: The invention relates to a periodic signal processing method, a periodic signal conversion method, and a periodic signal processing device capable of reducing the influence of periodicity without using a spectral model. Time windows are arranged such that a center of each of the time windows is at a division position which divides a fundamental frequency in a temporal direction into fractions 1/n (where n is an integer equal to or larger than 2) so as to extract a plurality of portions of different ranges from a signal having periodicity. A power spectrum for the plurality of portions extracted by the respective time windows is calculated, and the calculated power spectrum is added with a same ratio.

    摘要翻译: 本发明涉及周期性信号处理方法,周期信号转换方法以及能够在不使用频谱模型的情况下减少周期影响的周期信号处理装置。 时间窗被布置成使得每个时间窗口的中心处于将时间方向上的基本频率划分为分数1 / n(其中n是等于或大于2的整数)的分割位置,以便提取 与具有周期性的信号的不同范围的多个部分。 计算由各个时间窗口提取的多个部分的功率谱,并且以相同的比率添加所计算的功率谱。

    Periodic signal processing method, periodic signal conversion method, periodic signal processing device, and periodic signal analysis method
    3.
    发明授权
    Periodic signal processing method, periodic signal conversion method, periodic signal processing device, and periodic signal analysis method 有权
    周期信号处理方法,周期信号转换方法,周期信号处理装置和周期信号分析方法

    公开(公告)号:US08781819B2

    公开(公告)日:2014-07-15

    申请号:US12669533

    申请日:2008-07-18

    IPC分类号: G10L25/00

    摘要: The invention relates to a periodic signal processing method, a periodic signal conversion method, and a periodic signal processing device capable of reducing the influence of periodicity without using a spectral model. Time windows are arranged such that a center of each of the time windows is at a division position which divides a fundamental frequency in a temporal direction into fractions 1/n (where n is an integer equal to or larger than 2) so as to extract a plurality of portions of different ranges from a signal having periodicity. A power spectrum for the plurality of portions extracted by the respective time windows is calculated, and the calculated power spectrum is added with a same ratio.

    摘要翻译: 本发明涉及周期性信号处理方法,周期信号转换方法以及能够在不使用频谱模型的情况下减少周期影响的周期信号处理装置。 时间窗被布置成使得每个时间窗口的中心处于将时间方向上的基本频率划分为分数1 / n(其中n是等于或大于2的整数)的分割位置,以便提取 与具有周期性的信号的不同范围的多个部分。 计算由各个时间窗口提取的多个部分的功率谱,并且以相同的比率添加所计算的功率谱。