Presentation 2004/8/13
A method for designing acoustic measurement signals robust against background noise
Masanori MORISE, Toshio IRINO, Hideki BANNO, Hideki KAWAHARA,
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Abstract(in English) We propose a new signal for measuring acoustic impulse responses of rooms and audio equipment. The signal, named as "warped TSP", is a combination of TSP(Time stretched pulses) and Logarithmic-TSP to improve the accuracy both in low and high frequency regions where the ambient or background noise is relatively high. We are able to define an optimal signal in accordance with the spectral distribution of the background noise. In this report, we describe the method for designing the warped TSP and show the dependency between the parameter and the spectral distribution. Moreover, we demonstrate the effectiveness of the warped TSP by measuring the room acoustics and headphone characteristics in the real environments.
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Keyword(in English) Acoustic measurement / Impulse response / Transfer function / Background noise
Paper # EA2004-44
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Conference Date 2004/8/13(1days)
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Registration To Engineering Acoustics (EA)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A method for designing acoustic measurement signals robust against background noise
Sub Title (in English)
Keyword(1) Acoustic measurement
Keyword(2) Impulse response
Keyword(3) Transfer function
Keyword(4) Background noise
1st Author's Name Masanori MORISE
1st Author's Affiliation Faculty of Systems Engineering, Wakayama University()
2nd Author's Name Toshio IRINO
2nd Author's Affiliation Faculty of Systems Engineering, Wakayama University
3rd Author's Name Hideki BANNO
3rd Author's Affiliation Faculty of Systems Engineering, Wakayama University
4th Author's Name Hideki KAWAHARA
4th Author's Affiliation Faculty of Systems Engineering, Wakayama University
Date 2004/8/13
Paper # EA2004-44
Volume (vol) vol.104
Number (no) 247
Page pp.pp.-
#Pages 6
Date of Issue