All items tagged with audio measurements (122)
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.
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The Audio Measurement Issue! audioXpress March 2022 is Now Available
February 11, 2022 by audioXpress Staff

The Audio Measurement Issue! audioXpress March 2022 is Now Available

audioXpress March 2022 features an extensive Market Update report on the latest audio test and measurement tools. Matt Taylor explains the possibilities of REST for automated test and measurement, and Joe Begin (Audio Precision) addresses testing multichannel MEMS microphone arrays. The KEF KC62 subwoofer is reviewed by Oliver Masciarotte and measured by Kent Peterson, and Ben Chen explains how to use the Sfera Labs' Exo Sense Pi module as a sound meter. Download or read online now.
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HEAD acoustics Expands VoCAS Speech Recognition Testing Software
February 11, 2022 by audioXpress Staff

HEAD acoustics Expands VoCAS Speech Recognition Testing Software

HEAD acoustics continues to perfect measurement and analysis solutions in the field of speech and communication quality, expanding from a vast range of hardware platforms and tools - including its HMS II.3 fullband artificial head - all the way to dedicated software that adjusts to the quickly-evolving needs in this field. The German company continues to expand VoCAS, a sophisticated software tool for performance evaluation of automatic speech recognizers, addressing real life conditions in the lab.
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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.
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HEAD acoustics Increases Audio Measurement and Analysis Flexibility with ACQUA 5.0.100 Software
January 17, 2022 by Joao Martins

HEAD acoustics Increases Audio Measurement and Analysis Flexibility with ACQUA 5.0.100 Software

ACQUA 5.0.100 is the first iteration of the new generation of the well-established measurement and analysis software ACQUA from HEAD acoustics. ACQUA's significantly reworked software structure provides even greater flexibility for voice and audio quality evaluation, while paving the way for future expansions. Designed for the requirements in applications as diverse as communication systems, Bluetooth, ANC headphones, or smart speakers, ACQUA now supports faster hardware configuration, perceived loudness analysis, and MDAQS audio quality evaluation.
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Dirac Combines Suite of Automotive Sound Solutions in New Intelligent Audio Platform
January 7, 2022 by Joao Martins

Dirac Combines Suite of Automotive Sound Solutions in New Intelligent Audio Platform

Dirac’s new Intelligent Audio Platform (IAP) is a complete solution for automotive sound in all types of car models. The modular platform, already trusted and endorsed by Volvo, Rolls Royce, NIO, BYD, or Harman, offers patented optimization and spatialization solutions, easy tuning and measurement, and an all-new way of upmixing standard stereo content to create immersive sound experiences. And Dirac IAP offers a complete software suite with a unified interface for sound design and optimization.
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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.
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R&D Stories: The Tetrahedral Test Chamber Story (Part 2) - Consistent Loudspeaker Measurements
January 3, 2022 by Geoff Hill

R&D Stories: The Tetrahedral Test Chamber Story (Part 2) - Consistent Loudspeaker Measurements

In this article Geoff Hill completes the Tetrahedral Test Chamber story, a concept born out of necessity, simple wavelength theory and Beranek's wedges, measurement theory, and building upon experience gained in designing chambers in Europe, US, and Asia. These chambers are now in use throughout the world, providing consistent, reliable, and accurate measurements of loudspeaker transducers and loudspeaker systems. This article was originally published in audioXpress, October 2021.
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R&D Stories: The Tetrahedral Test Chamber Story (Part 1) - Recognizing the Need for Consistent Measurements​
December 29, 2021 by Geoff Hill

R&D Stories: The Tetrahedral Test Chamber Story (Part 1) - Recognizing the Need for Consistent Measurements​

This article revisits the story of the development of the Tetrahedral Test Chamber (TTC), by Geoff Hill, loudspeaker engineer, author, and inventor, in an effort to solve the longstanding problem of making consistent loudspeaker measurements. This innovative loudspeaker test chamber is now defined in international standards and in use throughout the world, scalable to any size of loudspeaker driver. This article was originally published in audioXpress, September 2021.
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GRAS Releases 12BE, 12BC, 12BF, and 12BD Microphone Power Modules with TEDS
December 16, 2021 by audioXpress Staff

GRAS Releases 12BE, 12BC, 12BF, and 12BD Microphone Power Modules with TEDS

GRAS Sound and Vibration added four new power modules to its existing line, with the introduction of the GRAS 12BE, 12BC, 12BF, and 12BD Microphone Power Modules aimed at engineers who need to power CCP or LEMO measurement microphones and would like seamless integration of microphone sensitivity via TEDS. These new power modules have the ability to take advantage of the latest GRAS SysCheck2-enabled microphones.
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