Title:
METHOD OF MEASURING RELATIVE DELAY USING IMPULSE RESPONSE
Document Type and Number:
WIPO Patent Application WO/2016/084265
Kind Code:
A1
Abstract:
Provided is a relative delay measurement method wherein two or more different original signals are output to two or more transmission systems from two or more sound generators, the sounds from the transmission systems are received by a common receiver, impulse responses are calculated from the responses to the two or more received original signals, time differences are determined from the calculated impulse responses corresponding to each sound generator, and a relative delay time using one sound generator as a reference is determined regardless of whether the reproduction system and measurement system are synchronized or unsynchronized. Additionally, provided is a relative delay measurement method wherein signals having no mutual correlation are used as the two or more source signals, and a relative delay time using one sound generator as a reference is determined.
Inventors:
HINO SHOKICHIRO (JP)
SUZUKI TAKUMA (JP)
SUZUKI TAKUMA (JP)
Application Number:
PCT/JP2014/082053
Publication Date:
June 02, 2016
Filing Date:
November 26, 2014
Export Citation:
Assignee:
ETANI ELECTRONICS CO LTD (JP)
International Classes:
G01H3/00; G10K15/00
Domestic Patent References:
| WO2006011356A1 | 2006-02-02 |
Foreign References:
| JP2007017415A | 2007-01-25 | |||
| JPH11258034A | 1999-09-24 | |||
| JP2006506671A | 2006-02-23 |
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