All items tagged with test and measurement (385)

HEAD acoustics ViBRIDGE: Holistic Testing of In-Ear Headsets with Bone Conduction Sensors

July 26, 2023 by audioXpress Staff

HEAD acoustics ViBRIDGE: Holistic Testing of In-Ear Headsets with Bone Conduction Sensors

With the availability of the HEL/HER 4.4 ViBRIDGE Flexible Pinna for HMS II.3/5, the industry as gained a vital testing tool for in-ear headset designs that utilize bone conduction sensors. Evaluating these systems is vital to optimize near-end structure-borne sound to improve speech quality in the presence of background noise, improve echo cancellation, and double-talk performance. The unique technology developed by HEAD acoustics is being enthusiastically embraced by the industry.

Book Review: Learning Audio Testing and Measurements

July 12, 2023 by Jan Didden

Book Review: Learning Audio Testing and Measurements

For those who need to refresh their knowledge or learn about audio test and measurements, Jan Didden reviews a great - and big! - book on the topic. Audio Tests & Measurements by Igor S. Popovitch is one of the many self-published works by this proficient writer based in Australia, also the author of several popular books on vacuum tube amplifiers. This particular book runs about 180 pages, but that is deceiving as the book’s format (A4 size) is about twice the size of most soft cover books.

PCB Piezotronics Adds Miniature ICP Triaxial Accelerometers with TEDS

June 30, 2023 by audioXpress Staff

PCB Piezotronics Adds Miniature ICP Triaxial Accelerometers with TEDS

PCB Piezotronics introduced new TLD356A01 and TLD356A03 Miniature ICP Triaxial Accelerometers with TEDS. These new models are upgrades to PCB's current 356A01 and 356A03 models with the addition of TEDS functionality. The new triaxial sensors are primarily used to measure vibration inside devices, where space is restricted and are highly valued for automotive systems development, modal and structural analysis, and general purpose vibration testing.

imc Test & Measurement Launches New Ultimately Flexible Data Acquisition System imc ARGUSfit

June 13, 2023 by audioXpress Staff

imc Test & Measurement Launches New Ultimately Flexible Data Acquisition System imc ARGUSfit

imc Test & Measurement, a brand of Axiometrix Solutions, launched a new modular data acquisition system. The imc ARGUSfit base unit and additional amplifier and fieldbus interface modules, such as CAN FD, can simply be clicked together providing ultimate flexibility in vehicle and machine testing and monitoring. With this modularity, the imc ARGUSfit can be perfectly tailored to changing test environments, and the extremely compact size makes it ideal for applications in confined spaces.

You can DIY! Build an Audio Dummy Load

May 25, 2023 by Gary Galo

You can DIY! Build an Audio Dummy Load

An audio load is an essential piece of test equipment for any audio electronics workshop. Having created the very popular Heathkit ID-5252, more than 35 years ago, Gary Galo decided to design a new option for everyone to build now. The ID-5252 contains four 8Ω, 60W power resistors. The biggest limitation of the Heathkit load is power handling. Series and parallel combinations can be used to produce various resistances and power levels — up to 240W at 8Ω, using all four resistors. But, simultaneously testing both channels of a high-powered amplifier requires two ID-5252 units. Fortunately, the raw parts for building an audio load are easy to find.

HEAD acoustics Announces Management Changes Following Hans Gierlich's Retirement Announcement

May 12, 2023 by audioXpress Staff

HEAD acoustics Announces Management Changes Following Hans Gierlich's Retirement Announcement

After 34 years with HEAD acoustics, Dr.-Ing. Hans Wilhelm Gierlich, the company's Technical Director and Head of Research in the Telecom Division, is retiring. At the same time, Aulis Telle, Technical Managing Director for Sound, Vibration and Perception is leaving the company. In response, HEAD acoustics confirmed two managing director positions resulting from an updated organizational structure with the appointment of Anne Geller-Gravez as Managing Director Sales and Marketing, and Matthias Wegerhoff as the new Technical Managing Director.

Practical Test & Measurement: REST for Automated Test and Measurement

May 10, 2023 by Matt Taylor

Practical Test & Measurement: REST for Automated Test and Measurement

This article is a great introduction to the use of web interfaces, and embracing web standards for automated testing of audio equipment, fundamentally exploring the possibilities of REST - which stands for Representational State Transfer, a widely accepted set of guidelines for creating reliable web APIs. Written by the founder of Seattle, WA-based QuantAsylum, this contributed piece advocates an open-design philosophy for controlling and querying things via REST, and leveraging the know-how of millions of developers. This article was originally published in audioXpress, March 2022.

HEAD acoustics Introduces Solutions for Bluetooth LE Audio Testing

May 9, 2023 by Joao Martins

HEAD acoustics Introduces Solutions for Bluetooth LE Audio Testing

LE Audio is an entirely new Bluetooth implementation introducing multiple exciting new opportunities for audio manufacturers, but also raising completely new challenges. As a leading source for audio measurement solutions, HEAD acoustics is updating its solutions to allow testing new Bluetooth LE Audio technologies. One of those is Auracast broadcast audio, which now can be fully tested and optimized with a HEAD acoustics labCORE test frontend.

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.

ALTI-Expo and Conference 2023. Largest Focused Event for the Loudspeaker Industry and Audio Product Developers

May 1, 2023 by audioXpress Staff

ALTI-Expo and Conference 2023. Largest Focused Event for the Loudspeaker Industry and Audio Product Developers

The traditional Audio & Loudspeaker Technologies International (ALTI) Association annual gathering has long been the highest quality networking event for any audio industry professional, particularly for brands, manufacturers and its suppliers. The upcoming ALTI-Expo and Conference 2023, will be held June 11-12 at the DoubleTree by Hilton at Universal Studios, in Orlando, FL, and will combine a highly focused exhibition with the largest ever conference program for audio product developers.

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