All items tagged with test and measurement (413)

July 20, 2021 by audioXpress Staff

Resonado Labs Closes $3M Series-Seed Round and Gains New High-Profile Investors

Resonado Labs announced the closing of its Series-Seed venture capital round at $3M, bringing the total raised to date to $5.2M including Pre-Seed funding. The capital will accelerate the commercialization of Resonado Labs’ proprietary, novel Flat Core Speaker (FCS) technology, help the company develop a wider array of drivers, and invest in new talent and test and measurement equipment. Resonado is intent on rapidly expand into the automotive, marine, and home audio industries.

AES Audio Product Education Institute Presents “Modeling and Measurement of True Wireless Stereo (TWS) Wearables”

July 16, 2021 by Audio Engineering_Society

AES Audio Product Education Institute Presents “Modeling and Measurement of True Wireless Stereo (TWS) Wearables”

The AES Audio Product Education Institute (APEI), created to promote methodologies, practices and technologies involved in developing and bringing audio products to market, is producing a free webinar focused on True Wireless Stereo (TWS) design on Tuesday, July 20 (12:00pm EDT). This webinar will focus on the fastest-growing category in consumer electronics with presentations from COMSOL, Listen, and JJR Acoustics detailing modeling, simulation and measurement of true wireless earbuds.

Practical Considerations for Quality Control Testing of Loudspeakers

June 30, 2021 by Dan Knighten

Practical Considerations for Quality Control Testing of Loudspeakers

Integrating a power amplifier, microphone power supply, and analyzer required for speaker tests, the article details how the Audio Precision APx517B can save time in the overall test process through reduced setup and configuration steps. The authors also explain how this new AP solution meets the need to balance the cost of test including time, test methods, and system cost, against "the cost of failure" that might result from the expense of warranty repairs, or the possible negative impact to brand from product returns. This article was originally published in Voice Coil, April 2021.

Tektronix Celebrates 75 Years of Innovation in Test and Measurement

June 28, 2021 by audioXpress Staff

Tektronix Celebrates 75 Years of Innovation in Test and Measurement

Famed Oregon-grown company Tektronix is celebrating 75 years. Tektronix was established in 1946 by C. Howard Vollum and Melvin J. Murdock with the creation of the world’s first time-base triggered oscilloscope. Renowned globally for its contributions to major technology breakthroughs, from the invention of color television to space exploration, Tektronix is credited as one of the most influential test and measurement companies in history.

Anatomically Correct Artificial Ear by HEAD acoustics Achieves ITU-T Standardization

June 17, 2021 by audioXpress Staff

Anatomically Correct Artificial Ear by HEAD acoustics Achieves ITU-T Standardization

HEAD acoustics succeeded in the standardization of the newly developed artificial ear with human-like ear canal (HEC). The new artificial ear is now standardized as Type 4.4 artificial ear in Recommendation ITU-T P.57. The HEAD acoustics HEC artificial ear not just fulfills the Type 4.4 artificial ear requirements, it is also the first ITU-T standardized artificial ear meeting the low-noise requirements for artificial ears as defined in the new chapter 7 of Recommendation P.57.

Battery Ventures Establishes Axiometrix Solutions Unifying Its Three Test and Measurement Brands

June 16, 2021 by audioXpress Staff

Battery Ventures Establishes Axiometrix Solutions Unifying Its Three Test and Measurement Brands

The measurement-focused business group established by Battery Ventures, and comprised of Audio Precision, GRAS Sound & Vibration, and imc Test & Measurement, announced its new name and brand: Axiometrix Solutions. Supporting a global customer base in the test and measurement space, Axiometrix Solutions intends to span the most technology-intensive industries including electronics, aerospace, automotive and audiology.

Fairview Microwave Releases Input Protected Low Noise Amplifiers with GaN Semiconductor Technology

June 16, 2021 by audioXpress Staff

Fairview Microwave Releases Input Protected Low Noise Amplifiers with GaN Semiconductor Technology

Fairview Microwave, an Infinite Electronics brand and a leading provider of on-demand RF, microwave and millimeter wave components, has just unveiled a new series of Low Noise Amplifiers (LNAs) that are perfect for use in test and measurement and R&D applications, as well as radar, space systems, and microwave radio. Fairview Microwave's new series of input protected LNAs feature Gallium Nitride (GaN) semiconductor technology which provides robust input power protection.

Listen's New AmpConnect 621 Hi-Res Multichannel Audio Interface Is Now Shipping

June 14, 2021 by audioXpress Staff

Listen's New AmpConnect 621 Hi-Res Multichannel Audio Interface Is Now Shipping

The Listen AmpConnect 621 was unveiled earlier with the launch of SoundCheck 19 software, and is now available. The new multichannel, multifunction, high resolution audio test interface includes all the functionality required for audio testing in just one unit, including an amplifier, microphone power supply, line outputs and digital I/O. And with a sample rate of up to 192kHz, it supports measuring high resolution audio designs.

How to Measure Free-Field Speaker Response Without an Anechoic Chamber

June 7, 2021 by Steve Temme

How to Measure Free-Field Speaker Response Without an Anechoic Chamber

One of the biggest challenges with working from home during the pandemic was not having access to an anechoic chamber. This short tutorial, explains a simple solution for this: a “splice” measurement. The capability for such measurements has been included in SoundCheck since 2001. Despite its long history, this method has not seen widespread use. However, the current pandemic’s working challenges are sparking renewed interest. This article was originally published in Voice Coil, March 2021.

Audio Precision Releases APx500 Version 6.1 Audio Measurement Software

June 1, 2021 by audioXpress Staff

Audio Precision Releases APx500 Version 6.1 Audio Measurement Software

Audio Precision released the APx500 audio measurement software, version 6.1. With this update, AP is adding new measurement results, options, and test signals for production test of loudspeakers, headphone drivers, and microphones. Most importantly for speaker designers and manufacturers the new APx software now offers the broadest set of methodologies available for detecting rub and buzz defects.

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