An index to evaluate indoor noise level reduction with an open window
Noise Reduction Index (NRI) was proposed Buratti C. Indoor Noise
Reduction Index with open window. Appl Acoust 2002;63(4):431–51.
The reduction was due to the installation of a false ceiling in the
room, thus reducing the contribution of the reverberant field. Experimental
data related to two different kinds of false ceiling were compared
to the results obtained by an original calculation model. Good agreement
was found between experiments with two different materials and predictions.
The present paper examines six different kinds of false ceiling and
arrives at a new validation of the model. Calculations of NRI show
good agreement with experimental data: a maximum difference of −1.2
dB(A) was found with a mean difference of 0.5 dB(A) for a wide range
of absorption coefficient values. Hence the model represents a reliable
instrument for indoor NRI prediction, if the acoustic absorption
characteristics of materials are known.
%0 Journal Article
%1 Buratti2006
%A Buratti, C.
%D 2006
%J Applied Acoustics
%K (NRI); Buildings Index Leq(A) Model Noise Open Reduction Road; Spectrum acoustic and insulation; measurements; validation window;
%P 383-401
%T Indoor Noise Reduction Index with an open window (Part II)
%V 67
%X An index to evaluate indoor noise level reduction with an open window
Noise Reduction Index (NRI) was proposed Buratti C. Indoor Noise
Reduction Index with open window. Appl Acoust 2002;63(4):431–51.
The reduction was due to the installation of a false ceiling in the
room, thus reducing the contribution of the reverberant field. Experimental
data related to two different kinds of false ceiling were compared
to the results obtained by an original calculation model. Good agreement
was found between experiments with two different materials and predictions.
The present paper examines six different kinds of false ceiling and
arrives at a new validation of the model. Calculations of NRI show
good agreement with experimental data: a maximum difference of −1.2
dB(A) was found with a mean difference of 0.5 dB(A) for a wide range
of absorption coefficient values. Hence the model represents a reliable
instrument for indoor NRI prediction, if the acoustic absorption
characteristics of materials are known.
@article{Buratti2006,
abstract = {An index to evaluate indoor noise level reduction with an open window
Noise Reduction Index (NRI) was proposed [Buratti C. Indoor Noise
Reduction Index with open window. Appl Acoust 2002;63(4):431–51].
The reduction was due to the installation of a false ceiling in the
room, thus reducing the contribution of the reverberant field. Experimental
data related to two different kinds of false ceiling were compared
to the results obtained by an original calculation model. Good agreement
was found between experiments with two different materials and predictions.
The present paper examines six different kinds of false ceiling and
arrives at a new validation of the model. Calculations of NRI show
good agreement with experimental data: a maximum difference of −1.2
dB(A) was found with a mean difference of 0.5 dB(A) for a wide range
of absorption coefficient values. Hence the model represents a reliable
instrument for indoor NRI prediction, if the acoustic absorption
characteristics of materials are known.},
added-at = {2012-01-27T14:10:42.000+0100},
author = {Buratti, C.},
biburl = {https://www.bibsonomy.org/bibtex/29ba2fffd11ea217401a553b43d8320e0/muhe},
interhash = {a3ef23570f76779cc50642fd74c64920},
intrahash = {9ba2fffd11ea217401a553b43d8320e0},
journal = {Applied Acoustics},
keywords = {(NRI); Buildings Index Leq(A) Model Noise Open Reduction Road; Spectrum acoustic and insulation; measurements; validation window;},
owner = {Mu},
pages = {383-401},
timestamp = {2012-01-27T14:10:47.000+0100},
title = {Indoor Noise Reduction Index with an open window (Part II)},
volume = 67,
year = 2006
}