Transient Sound Pressure Level
Application ID: 105481
For transient acoustic problems, there are different sound pressure level metrics that have been defined in the literature and in measurement standards. These metrics are important to know when comparing results from a transient acoustic simulation to measurements from a sound level meter or when trying to make results from a transient simulation easier to interpret on a logarithmic scale.
This application demonstrates the following:
Computing Frequency Weighted pressure for a transient signal using a window function.
Computing Time Weighted Sound Level using a convolution in the time domain.
Computing Time Average Sound Level over a user defined time period using a parametric sweep.
A detailed description of this model can be found in our blog post "Computing Transient Sound Pressure Levels in COMSOL®".
This model example illustrates applications of this type that would nominally be built using the following products:
however, additional products may be required to completely define and model it. Furthermore, this example may also be defined and modeled using components from the following product combinations:
The combination of COMSOL® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Grille des Spécifications and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.