All items tagged with acoustic materials (9)

TDK Introduces Ultra-Thin Noise Suppression Permalloy Sheets

May 21, 2024 by Joao Martins

TDK Introduces Ultra-Thin Noise Suppression Permalloy Sheets

TDK Corporation extended its Flexield family of permalloy thin film sheets with the new IPM01 series, which features high-permeability and high loss in a lightweight and 0.006 mm ultra-thin design. This new material made possible due to TDK's proprietary manufacturing method, effectively shields lower-frequency band noise, which is becoming a growing issue in electric vehicles (EVs). Mass production of the product began May 2024.

COMSOL Releases Version 6.2 of COMSOL Multiphysics

November 8, 2023 by Joao Martins

COMSOL Releases Version 6.2 of COMSOL Multiphysics

COMSOL announced the release of COMSOL Multiphysics version 6.2, adding data-driven surrogate model functionality for efficient standalone simulation apps, and multiphysics-based digital twins, among some of the major new features. For users of the Acoustics Module, version 6.2 introduces a new frequency-dependent Impedance condition for time-domain pressure acoustics, a new anisotropic material model in the Poroelastic Waves interface, and a new Port boundary condition for enhanced modeling of aeroacoustics based on linearized potential flow.

Indian Institute of Technology Researches Eco-Friendly Sound Absorbers From Seaweed

July 20, 2022 by audioXpress Staff

Indian Institute of Technology Researches Eco-Friendly Sound Absorbers From Seaweed

From airplanes to apartments, most spaces are now designed with sound-absorbing materials that help dampen the droning, echoing and murmuring sounds of everyday life. But most of the acoustic materials that can cancel out human voices, traffic and music are made from plastic foams that aren’t easily recycled or degraded. Now, researchers from the Indian Institute of Technology Kanpur have created a biodegradable seaweed-derived film that effectively absorbs sounds in that frequency range.

Good Vibrations (Part 2) - Dealing With Unwanted Vibrations

September 11, 2019 by Norman Varney

Good Vibrations (Part 2) - Dealing With Unwanted Vibrations

Following a first R&D article, where Norman Varney discusses the basic principles of unwanted vibrations in audio playback environments, in this second part he writes about what his research found to be effective ways to counteract those effects. The article details the evaluation process and extensive measurements that lead to the creation of various products that AV RoomService provides when helping clients with their acoustic problems. This article was originally published in audioXpress, September 2019.

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Good Vibrations (Part 1) - The Basic Principles of Unwanted Vibrations

August 20, 2019 by Norman Varney

Good Vibrations (Part 1) - The Basic Principles of Unwanted Vibrations

In this article, Norman Varney discusses the basic principles of unwanted vibrations in audio playback environments. "When we play back audio, we only want to hear sound waves created from the electromechanical vibrations produced by the loudspeaker. They are the result and intention of the artists. They are the original signals. These are good vibrations. However, for this article, we will focus on the basic principles of unwanted vibrations of audio playback environments," states Varney in the article introduction, originally published in audioXpress, August 2019

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Eastman and DW Designs Showcase Audio Applications for Tritan Copolyester and Trēva Engineering Bioplastics

October 24, 2018 by audioXpress Staff

Eastman and DW Designs Showcase Audio Applications for Tritan Copolyester and Trēva Engineering Bioplastics

Global specialty plastics provider Eastman collaborated with engineering consultants DW Designs to mold and test beryllium models in ear monitor housings using a variety of materials. Eastman's John Quigley and DW Designs' Dan Wiggins recently presented their findings at the annual CanJam @ Rocky Mountain International Audio Fest held in Denver October 5-7, 2018.

COMSOL Releases Version 5.4 and Introduces Two New Products

October 9, 2018 by audioXpress Staff

COMSOL Releases Version 5.4 and Introduces Two New Products

COMSOL announced the latest version of COMSOL Multiphysics Version 5.4, which in addition to two new products provides performance improvements and additional modeling tools. The latest version of COMSOL Multiphysics features COMSOL Compiler, giving specialists the freedom to distribute their simulation applications through executable files, and the Composite Materials Module for layered structures analysis. For acoustics modeling applications, the update introduces acoustic ports and nonlinear acoustics Westervelt model.

Primacoustic Reorganizes In-House Sales Team For North America

June 14, 2017 by audioXpress Staff

Primacoustic Reorganizes In-House Sales Team For North America

Primacoustic (a division of Radial Engineering Ltd.) announced that it has restructured its in-house custom install and AV contractor sales team. The changes are designed to better address the growing market for acoustic materials, while adding the additional responsibilities of two other Radial brands, Hafler and Jensen Transformers, to the sales team's tasks.

BASF Basotect Absorption Materials Create Total Silence at Guggenheim Museum Exhibit

March 29, 2017 by audioXpress Staff

BASF Basotect Absorption Materials Create Total Silence at Guggenheim Museum Exhibit

Noise is everywhere. In New York City – ranked among the top 10 loudest cities in the world – it’s a constant. The din in restaurants soars over 90 decibels, and subways rushing across the city register more than 80 decibels. Running through August 2, 2017, the Solomon R. Guggenheim Museum will offer a serene and silent escape with its new presentation of Doug Wheeler: PSAD Synthetic Desert III. The Guggenheim presentation features 400 pyramids and 600 wedges of Basotect melamine foam, covering the chamber’s floor, walls, and ceiling.