All items tagged with acoustics (94)

Voice for True Wireless Earbuds, GaN, and More Exciting Audio Frontiers in audioXpress April 2022

March 11, 2022 by audioXpress Staff

Voice for True Wireless Earbuds, GaN, and More Exciting Audio Frontiers in audioXpress April 2022

The April 2022 issue of audioXpress offers an overview of voice for true wireless stereo earbuds with contributed articles from Knowles and Fluent.ai. Stuart Yaniger reviews the possibilities with GaN amplifiers, and Steve Temme explains the evolution of Rub & Buzz measurements and the latest perceptual algorithms. Ethan Winer designs a sample & hold circuit for a guitar-controlled, all-analog synthesizer project, Richard Honeycutt explores the meaning of “frequency response” as applied to rooms, and Mark Driedger explains why and how to test tubes.

NTi Audio Introduces AI for Noise Classification and Updates for XL2 Sound Level Meter

January 20, 2022 by audioXpress Staff

NTi Audio Introduces AI for Noise Classification and Updates for XL2 Sound Level Meter

NTi Audio continues to expand its range of leading test and measurement solutions for acoustics, audio and vibration applications. The company has recently moved to new headquarters, and expanded its development team, accelerating development of software for its range of products. This includes adding artificial intelligence (AI) analysis and Noise Classification for its NoiseScout noise monitoring solution, or improving the features for its popular XL2 Sound Level Meter.

AT&S and SevenBel Make Sound Field Noise Sources Visible

January 4, 2022 by Joao Martins

AT&S and SevenBel Make Sound Field Noise Sources Visible

Austrian start-up SevenBel has developed a method to make noise sources visible, enabling engineers to prevent undesirable noise in buildings or devices. The company's Sound Scanner acoustic camera solutions have been developed for these applications, combining a rotating sensor unit, a mobile app, and a cloud service. High-tech printed circuit boards from Austria Technologie & Systemtechnik (AT&S) are part of the sensor units that make this affordable noise measurement solution possible.

Patent Review: Acoustical Window Assembly for Vehicle and Home Theater Solution

December 29, 2021 by James Croft

Patent Review: Acoustical Window Assembly for Vehicle and Home Theater Solution

James Croft reviews two patents for a new type of subwoofer architecture. The first is intended for use in an automobile and the second, for use in a domestic listening room. The first patent relates to an “Acoustical Window Assembly for Vehicle,” while the second describes a home-theater solution using essentially the same concept, adapted to one or more home windows. Both patents were awarded to Magna International, Inc. This article was originally published in Voice Coil, October 2015.

COMSOL Announces Multiphysics Version 6.0 with Valuable New Features in the Acoustics Module

December 15, 2021 by Joao Martins

COMSOL Announces Multiphysics Version 6.0 with Valuable New Features in the Acoustics Module

With the latest release of COMSOL Multiphysics 6, users of the Acoustics Module will benefit from many new and highly requested features that reflect the software's increasing use in the audio industry. Expanding the level of detail and applicability of multiphysics simulation to every area of development, COMSOL Multiphysics V6 introduces a new platform feature for model management, uncertainty quantification analysis, and important updates and performance enhancements to all modules.

Outline Announces Globe Source Radiator Acoustic Measurement Solution

November 29, 2021 by audioXpress Staff

Outline Announces Globe Source Radiator Acoustic Measurement Solution

Designed in collaboration with the Department of Mechanical And Industrial Engineering at the prestigious Brescia University in Lombardy, and engineered in Italy by Outline, the new Globe Source Radiator (GSR) high-power omnidirectional sound source solution provides a vital tool for acoustic analysis. Complemented with the Outline NG01 noise generator that can be controlled with a radio remote control, and the portable Outline L3000 DSP amplifier, the GSR offers a high-SPL solution for acoustics measurements in all environments, including large venues and spaces.

Get the Lowdown on Audio and DSP with audioXpress November 2021

October 12, 2021 by audioXpress Staff

Get the Lowdown on Audio and DSP with audioXpress November 2021

The November 2021 edition of audioXpress looks at the latest industry trends in digital signal processing, and enabling fully adaptive audio DSP experiences. Roger Shively (JJR Acoustics) writes about how the unique acoustic space of the car interior can be defined by the use of DSP, and Al Clark (CEO, Danville Signal Processing) shares his company’s journey into the development of the dspNexus DSP Audio Processor. Now available for viewing online, download and in print.

September 16, 2021 by audioXpress Staff

Hottinger Bruel & Kjaer Electroacoustics Virtual Conference Takes Place September 28 - 29

Registration is now open for the upcoming Electroacoustic Virtual Conference, an event promoted by Hottinger Bruel & Kjaer (HBK), which this year will be fully online and offers an exciting two-day program. The Electroacoustic Conference will offer presentations from experts in all areas related with sound, noise, acoustics and vibration, with more than 21 presentations already scheduled. Sessions include presentations from companies such as Head-Fi, XMEMS Micro Speakers, Comsol, Embody VR, Vibrations Inc., Harman International and more.

Staying Connected in Hostile Sound Environments

September 9, 2021 by Bruce Ryan

Staying Connected in Hostile Sound Environments

Consumers are increasingly looking to have high quality sound integrated into their lives in creative ways. However, ensuring that their demands are met across connectivity and sound can be hard to achieve. Often, the more creative and interesting the application, the higher chance it’s harder to produce a sound that is perfect for every use case.

You Can DIY! An Introduction to Measuring Rooms

September 8, 2021 by Ethan Winer

You Can DIY! An Introduction to Measuring Rooms

"Before you start measuring and playing around with your new speakers, maybe you should know your room." The statement, inspired Ethan Winer to write this article from a very practical perspective, helping us to understand the acoustics of our own listening rooms, and how measurements will help us. The examples contained in the article use the popular Room EQ Wizard (REW) software. This article was originally published in audioXpress, August 2021.

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