Title: Method for measuring frequency characteristic and rising edge of impulse response, and sound field correcting apparatus
Application Number: 200610159850 Application Date: 2006.10.30
Publication Number: 1959354 Publication Date: 2007.05.09
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01H17/00;H04S7/00
Applicant(s) Name: Sony Corp. Address:
Inventor(s) Name: Asada Kohei
Attorney & Agent: chenwei
Abstract:
    A method for measuring a frequency characteristic of a system for measurement, in which the length of an impulse response of the system is greater than the length N of a TSP (time stretched pulse) signal, is provided. The method includes the steps of supplying the TSP signal to the system continuously for a predetermined number of times, adding and averaging output signals each having the length N, and performing circular convolution on a value obtained by the adding and averaging so that the frequency characteristic of the system is obtained.
Time: 4
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