Abstract
This study is relevant to acoustic measurements in reverberation rooms such as measurements of
sound transmission, sound absorption, and sound power levels of noise sources. The study presents
a quantitative measure for the diffuseness in a room, which is first introduced theoretically and sub-
sequently examined experimentally. The sensitivity of a room due to changes in the initial condi-
tions is quantified by measuring a pair of impulse responses in a room differing only in the sound
source position. Such changes are linked to mixing and the diffuse sound field. The measure is
based on the maximum of the absolute value of the cross-correlation between the time windowed
sections of the two impulse responses. By integrating this quantity normalized by the energy of the
impulse response of the room, a single number rating is obtained. Results based on three sets of
experiments indicate that the diffusers and absorbers in the room influence the proposed sensitivity
measures systematically
Original language | English |
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Journal | Journal of the Acoustical Society of America |
Volume | 136 |
Issue number | 4 |
Pages (from-to) | 1654-1665 |
ISSN | 0001-4966 |
DOIs | |
Publication status | Published - 2014 |