## How to Perform a Nonlinear Distortion Analysis of a Loudspeaker Driver

##### Kirill Shaposhnikov June 18, 2018

For a thorough and complete analysis of a loudspeaker driver design, acoustics engineers need to perform nonlinear time-domain studies in addition to frequency-domain studies.

### What Is the Doppler Effect?

##### Brianne Christopher May 29, 2018

A siren passes by and you hear a change in pitch. A bug swims across a puddle, causing ripples on the surface. A star in the sky has a reddish hue. These are all examples of the Doppler effect.

### Teaching Students About Acoustics Phenomena with Apps

##### Caty Fairclough April 27, 2018

Acoustics concepts and their underlying theories can be difficult for engineering students to visualize. For one university, simulation applications proved to be an effective teaching tool.

### Finding Answers to the Tuning Fork Mystery with Simulation

##### Henrik Sönnerlind April 13, 2018

If you strike a tuning fork and hold it against a tabletop, the peak frequency of the emitted sound doubles. Is there a physical explanation for this “tuning fork mystery”?

### How to Use the Boundary Element Method in Acoustics Modeling

##### Mads Herring Jensen March 19, 2018

Learn advantages and strategies for using the boundary element method (BEM) for acoustics modeling. Plus, we go over a hybrid approach that combines BEM with the finite element method (FEM).

### Acoustic Topology Optimization with Thermoviscous Losses

##### GuestRené Christensen February 28, 2018

A guest blogger from GN Hearing discusses including thermoviscous losses in the topology optimization of microacoustic devices, such as hearing aids, mobile phones, and metamaterial geometries.

### Analyzing the Viscous and Thermal Damping of a MEMS Micromirror

##### Caty Fairclough January 29, 2018

Micromirrors are efficient and inexpensive. Here, we go over 2 types of analyses for a MEMS micromirror design, frequency-domain and transient, using the COMSOL® software.

### How to Use Dispersion Curves to Analyze Fluid-Filled Pipes

##### Ajit Bhuddi November 8, 2017

Modeling a fluid-filled pipe is both a time-consuming and computationally expensive process, but there’s a way to streamline the process: a guided wave propagation approach via dispersion curves.

### Have You Heard About the Cocktail Party Problem?

##### Caty Fairclough November 7, 2017

You’re at a party with loud music and a ton of people. Despite the noise, you are able to chat with a friend. How is it that you can differentiate his or her voice from all the sounds around you?

### Keynote Video: Using Simulation to Develop Reliable Audio Transducers

##### Caty Fairclough November 1, 2017

An engineer from a loudspeaker company discusses using simulation to design a component that can handle fatigue, environmental conditions, and user wear and tear. Watch the presentation.

### Is That a Ghost? Vibroacoustic Explanations for False Poltergeists

##### Brianne Christopher October 31, 2017

Creepy sounds are often misinterpreted as paranormal activity, when in fact, they can be explained with vibroacoustics, mechanical resonance, and attenuating sound.