TY - GEN
T1 - Determination of the sound power levels emitted by various vehicles using a novel testing method
AU - Cho, Dae Seung
AU - Mun, Sungho
PY - 2008
Y1 - 2008
N2 - This paper presents an efficient method to determine sound power levels (PWLs). PWLs, generally used for modelling outdoor sound simulations, are obtained from sounds that are emitted by various types of vehicles and cause road traffic noise. Other models, such as HARMONOISE and the ASJ Model, are also based on PWLs. However, a more efficient method is required for determining PWLs from sound pressure levels (SPLs) that typically are measured by field testing and evaluating the influence of different vehicles and road surfaces. The statistical pass-by (SPB) of ISO 11819-1 is used for SPL measurements; however, numerous SPBs must be carried out to reduce measurement uncertainty as well as to satisfy requirements related to meteorological conditions and background noise. In order to alleviate this problem and to make the determination of PWLS more efficient, a testing approach is presented that uses both the novel close proximity (NCPX) method and the pass-by method to determine PWLs.
AB - This paper presents an efficient method to determine sound power levels (PWLs). PWLs, generally used for modelling outdoor sound simulations, are obtained from sounds that are emitted by various types of vehicles and cause road traffic noise. Other models, such as HARMONOISE and the ASJ Model, are also based on PWLs. However, a more efficient method is required for determining PWLs from sound pressure levels (SPLs) that typically are measured by field testing and evaluating the influence of different vehicles and road surfaces. The statistical pass-by (SPB) of ISO 11819-1 is used for SPL measurements; however, numerous SPBs must be carried out to reduce measurement uncertainty as well as to satisfy requirements related to meteorological conditions and background noise. In order to alleviate this problem and to make the determination of PWLS more efficient, a testing approach is presented that uses both the novel close proximity (NCPX) method and the pass-by method to determine PWLs.
UR - http://www.scopus.com/inward/record.url?scp=84883429002&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84883429002
SN - 9781627481519
T3 - 15th International Congress on Sound and Vibration 2008, ICSV 2008
SP - 1010
EP - 1017
BT - 15th International Congress on Sound and Vibration 2008, ICSV 2008
T2 - 15th International Congress on Sound and Vibration 2008, ICSV 2008
Y2 - 6 July 2008 through 10 July 2008
ER -
