All items tagged with Multiphysics (42)

Simulation Techniques: Loudspeaker Driver Displacement Decomposition

October 25, 2023 by René Christensen

Simulation Techniques: Loudspeaker Driver Displacement Decomposition

This article by René Christensen (BSEE, MSc, PhD), offers a valuable tutorial that discusses the unique possibilities of three-dimensional analysis of loudspeaker driver displacement, using Phase Decomposition and Axial-Symmetrical Decomposition techniques. The article demonstrates how a total displacement on a cone surface can be decomposed into different components directly in COMSOL Multiphysics, and how this can reveal some of the underlying mechanisms of the driver.

Simulation Techniques: SonicEdge Ultrasound Speaker - Modeling and Application

September 27, 2023 by René Christensen

Simulation Techniques: SonicEdge Ultrasound Speaker - Modeling and Application

The SonicEdge transducer - a cutting-edge microspeaker based on a unique MEMS technology that generates sound using active ultrasound modulation - introduces a completely new class of devices that can deliver constant volume velocity across audio frequencies and beyond. The article details how to model the transducer in lumped-element and finite-element acoustic simulations and how to tailor a desired SPL response using acoustic features. As originally published in audioXpress, August 2023.

Simulation Techniques: Misconceptions in the Audio Industry

September 20, 2023 by René Christensen

Simulation Techniques: Misconceptions in the Audio Industry

In this fascinating article about common sound theory misconceptions that exist in the audio and hifi communities, René Christensen debunks three of them. Starting with group delay and phase delay, what actually happens when a loudspeaker driver moves outward and inward, and the effects of polarity and phase flip. True reference material with detailed mathematical expressions and numerical analysis. This article was originally published in audioXpress, June 2023.

Product Development, Speakers, and Acoustic Analysis in audioXpress September 2023

August 11, 2023 by audioXpress Staff

Product Development, Speakers, and Acoustic Analysis in audioXpress September 2023

audioXpress September 2023 is a rich issue in the amount of audio topics explored and depth of analysis. Learn about the latest sound meters and acoustical simulation tools, what immersive audio really is, and what is possible with the development kits for true wireless earbuds from Knowles. Roger Shively does a full analysis of the Dinaburg C2S Concentric Coplanar Stabilizer speaker technology, Charlie Laub explains how to build a Minimally Baffled Dipole Loudspeaker, and Gary Gesellchen reveals viable bass reflex speaker designs.

COMSOL and Klippel, Integration of Simulation and Measurement Data

August 4, 2023 by Roger Shively

COMSOL and Klippel, Integration of Simulation and Measurement Data

Modeling and Simulation and Measurement systems evolved significantly in the past decade. Important progress is now bridging the gap between COMSOL simulation and Klippel measurement data, Roger Shively reports after returning from Orlando, FL, where we attended another edition of the ALTI Expo & Conference (June 11-13, 2023). This article summarizes the content covered in a very important session as part of the APDA-ALTI Education Symposium 2023.

COMSOL In-Person Conferences Return with Munich Event in 2023

June 9, 2023 by audioXpress Staff

COMSOL In-Person Conferences Return with Munich Event in 2023

COMSOL has released the dates and locations for the COMSOL Conference 2023. The first conference will be held in Munich, Germany, from October 25-27. Additional conference locations for 2023 are Bengaluru, Seoul, Taipei, and Tokyo. In those events, attendees can connect with other practitioners in the simulation community, gain inspiration from industry leaders, learn new modeling techniques using the COMSOL Multiphysics software, and showcase their own research and case studies.

APDA-ALTI Education Symposium 2023. Three Days of Audio Product Knowledge

May 1, 2023 by audioXpress Staff

APDA-ALTI Education Symposium 2023. Three Days of Audio Product Knowledge

The Audio Product Development Alliance (APDA) in association with the Audio & Loudspeaker Technologies International (ALTI) Association, promotes a three day education symposium during the ALTI Expo & Conference 2023, June 11 - 13, 2023 at the DoubleTree by Hilton at the entrance to Universal, Orlando. Three days to improve your knowledge and skills in the development of audio products, from concept to delivery.

COMSOL Expands Working Environment for Modeling and Simulation With New Model Manager Server

April 27, 2022 by audioXpress Staff

COMSOL Expands Working Environment for Modeling and Simulation With New Model Manager Server

COMSOL announced a major update to the COMSOL Multiphysics software version 6.0. The update builds out the Model Manager server with a web interface, adding an asset management system to make it easier for COMSOL users to manage models, simulation apps, and supplementary auxiliary files. The new COMSOL Model Manager interface combines all elements of product and process design to facilitate collaboration.

From Microspeakers to Room Acoustics: COMSOL Promotes Three Acoustics Simulation Online Events

April 21, 2022 by audioXpress Staff

From Microspeakers to Room Acoustics: COMSOL Promotes Three Acoustics Simulation Online Events

COMSOL continues its global virtual event series with COMSOL Day: Acoustics, to be held in three different time zones, with each event featuring a one-day program focusing on acoustics simulation using COMSOL Multiphysics software. Sessions will be hosted online on April 28, May 5, and May 19 by organizers in the USA, Europe, and China, respectively. Three online COMSOL Day events will showcase the benefits of multiphysics simulation to industries developing audio and acoustics products.

COMSOL Announces Event Series Introducing Version 6.0 of COMSOL Multiphysics Software

January 21, 2022 by audioXpress Staff

COMSOL Announces Event Series Introducing Version 6.0 of COMSOL Multiphysics Software

COMSOL has opened registration for COMSOL Day: Version 6.0, a series of online events held around the world to better explain all the new exciting possibilities introduced with the latest COMSOL Multiphysics simulation software update. Starting January 27, there will be four events to introduce COMSOL Multiphysics version 6.0 to the global community involved in research and product development. A unique opportunity to lear more about simulation-driven design, collaborative simulation, and reliable designs.

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