Comparisons between physics-based, engineering, and statistical learning models for outdoor sound propagation

Many outdoor sound propagation models exist, ranging from highly complex physics-based simulations to simplified engineering calculations, and more recently, highly flexible statistical learning methods. Several engineering and statistical learning models are evaluated by using a particular physics-based model, namely, a Crank-Nicholson parabolic equation (CNPE), as a benchmark. Narrowband transmission loss values predicted with the CNPE, based upon a simulated data set of meteorological, boundary, and source conditions, act as simulated observations. In the simulated data set sound propagation conditions span from downward refracting to upward refracting, for acoustically hard and soft boundaries, and low frequencies. Engineering models used in the comparisons include the ISO 9613-2 method, Harmonoise, and Nord2000 propagation models. Statistical learning methods used in the comparisons include bagged decision tree regression, random forest regression, boosting regression, and artificial neural network models. Computed skill scores are relative to sound propagation in a homogeneous atmosphere over a rigid ground. Overall skill scores for the engineering noise models are 0.6%, -7.1%, and 83.8% for the ISO 9613-2, Harmonoise, and Nord2000 models, respectively. Overall skill scores for the statistical learning models are 99.5%, 99.5%, 99.6%, and 99.6% for bagged decision tree, random forest, boosting, and artificial neural network regression models, respectively.

Medienart:

E-Artikel

Erscheinungsjahr:

2016

Erschienen:

2016

Enthalten in:

Zur Gesamtaufnahme - volume:139

Enthalten in:

The Journal of the Acoustical Society of America - 139(2016), 5 vom: 02. Mai, Seite 2640

Sprache:

Englisch

Beteiligte Personen:

Hart, Carl R [VerfasserIn]
Reznicek, Nathan J [VerfasserIn]
Wilson, D Keith [VerfasserIn]
Pettit, Chris L [VerfasserIn]
Nykaza, Edward T [VerfasserIn]

Links:

Volltext

Themen:

Journal Article
Research Support, U.S. Gov't, Non-P.H.S.

Anmerkungen:

Date Completed 21.06.2018

Date Revised 21.06.2018

published: Print

Citation Status PubMed-not-MEDLINE

doi:

10.1121/1.4948757

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM260957194