PMID- 25786926
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20150810
LR  - 20150319
IS  - 1520-8524 (Electronic)
IS  - 0001-4966 (Linking)
VI  - 137
IP  - 3
DP  - 2015 Mar
TI  - Influence of wall scattering on the early fine structures of measured room 
      impulse responses.
PG  - 1108-16
LID - 10.1121/1.4913773 [doi]
AB  - The effects of wall diffusing elements on sound-field diffuseness were 
      investigated in a tenth-scale model hall and in a real recital hall. Acoustical 
      measurements were carried out in both halls to measure the surface diffusivity of 
      the lateral walls. In the scale model, the surfaces of the lateral walls and the 
      soffits were covered with diffusers; in the recital hall, the front halves of 
      both lateral walls were treated using reflective panels and absorptive materials. 
      Objective characteristics were investigated using conventional room acoustic 
      parameters and the number of peaks (Np) computed for the measured impulse 
      responses, which were recorded under diffusive, reflective, and absorptive 
      conditions. In addition, as a measure of the diffuse sound fields, the relative 
      standard deviations (RSDs) of the acoustical parameters were investigated. The 
      diffusive surfaces caused a decrease in the standard deviation of the early decay 
      time and an increase in the Np at higher frequency bands. Auditory experiments 
      using a paired comparison method revealed that the perception of subjective 
      diffuseness could be quantified by using Np. In addition, one listener group's 
      preference was correlated with Np and varied depending on different wall surface 
      treatments.
FAU - Jeon, Jin Yong
AU  - Jeon JY
AD  - Department of Architectural Engineering, Hanyang University, Seoul 133-791, 
      Korea.
FAU - Jang, Hyung Suk
AU  - Jang HS
AD  - Department of Architectural Engineering, Hanyang University, Seoul 133-791, 
      Korea.
FAU - Kim, Yong Hee
AU  - Kim YH
AD  - Department of Architectural Engineering, Hanyang University, Seoul 133-791, 
      Korea.
FAU - Vorlander, Michael
AU  - Vorlander M
AD  - Institute of Technical Acoustics, RWTH Aachen University, D-52056 Aachen, 
      Germany.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - J Acoust Soc Am
JT  - The Journal of the Acoustical Society of America
JID - 7503051
EDAT- 2015/03/20 06:00
MHDA- 2015/03/20 06:01
CRDT- 2015/03/20 06:00
PHST- 2015/03/20 06:00 [entrez]
PHST- 2015/03/20 06:00 [pubmed]
PHST- 2015/03/20 06:01 [medline]
AID - 10.1121/1.4913773 [doi]
PST - ppublish
SO  - J Acoust Soc Am. 2015 Mar;137(3):1108-16. doi: 10.1121/1.4913773.