Acoustics Module

Shows a complex geometry imported
Shows a complex geometry imported

The Acoustics Module is a world-class solution to all your acoustics modelling needs. Easy-to-use application modes provide the tools to model acoustic wave propagation in air, water, other fluids–and even solids.

It is designed specifically for those who work in classical acoustics with devices that produce, measure, and utilise acoustic waves. Just a few application areas from the audio industry include speakers, microphones, and hearing aids, while those for noise control can address muffler design, sound barriers, and building acoustics.

The modelling of acoustics-structure interaction is easily done with the Acoustics Module. This capability is particularly attractive for applications such as the design of sonar transducers in medical and non-destructive testing applications as well as those used for noise and vibration analysis.

This module also features a special interface for modelling aero acoustics, which is especially useful for the control of aircraft engine noise. In addition, its general Multiphysics ability enhances classical acoustics with further accuracy.

  • Loudspeaker Driver in a Vented Enclosure

    2017 Global Comsol Multiphysics Users Conference's

    This model of a boxed loudspeaker lets you apply a nominal driving voltage and extract the resulting sound pressure level in the outside room as a function of the frequency. The sensitivity, both on-axis and spatial, is determined as function of frequency. These are some of the most important design parameters for a loudspeaker. The electromagnetic properties of the driver are supplied from the Loudspeaker Driver ...

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  • Shape Optimization of a Tweeter Waveguide

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    This application illustrates how to use COMSOL’s optimization capabilities to automatically develop novel designs satisfying critical design constraints. The model optimizes a simple speaker geometry. Examples of constraints could include the radius of the loudspeaker or a desired minimum achievable sound-pressure level. To exemplify the optimization capabilities this application studies the shape ...

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  • Small Concert Hall Acoustics

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    Designing structures and open spaces with respect to sound quality is important for concert halls, outdoor environments, and even the rooms of a house. Simulating acoustics in the high-frequency limit, where the wavelength is smaller than the geometrical features, can be done with ray acoustics. There are several advantages to modeling ray acoustics, including changing media properties and assigning various wall ...

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  • Thermoacoustics Simulation for More Robust Microphone Analysis

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    This is a model of the Brüel and Kjær 4134 condenser microphone. The geometry and material parameters are those of the actual microphone. The modeled sensitivity level is compared to measurements performed on an actual microphone and shows good agreement. The membrane deformation, pressure, velocity, and electric field are also determined. The model is a true multiphysics problem that ...

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