All items tagged with audio measurements (122)
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.
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New NTi Audio M2340 Class 1 Measurement Microphone for the XL2 Analyzer
July 8, 2021 by audioXpress Staff

New NTi Audio M2340 Class 1 Measurement Microphone for the XL2 Analyzer

NTi Audio announced a valuable new 1/2" measurement microphone option for its portable XL2 Audio and Acoustic Analyzer. The new M2340 model is a development of the existing M2230, and is also a Class 1 measurement microphone, optimized for a flat, free-field response. In addition, the M2340 features self-verification circuitry and consumes significantly less power than the M2230. The M2340 contains the preamplifier and is an ideal omni-directional solution for noise monitoring.
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Klippel New dB-Lab Version 212 and QC 7 Updates Extend Speaker and Enclosure Characterization Tools
July 1, 2021 by audioXpress Staff

Klippel New dB-Lab Version 212 and QC 7 Updates Extend Speaker and Enclosure Characterization Tools

Klippel released a major software update to its Klippel Analyzer System. The new dB-Lab Version 212 and QC 7 updates now add shared sensor management, support for the new Multi-Scanning Workbench hardware and three further modules (LSIM, MTON, RMA). The Klippel Multi-Scanning Workbench supports near-field holographic soundfield scanning measurements in a much smaller form factor, while the new modules add linear signal modeling and simulation and multi-tone measurements, dedicated to speaker and enclosure design.
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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.
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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.
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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.
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Achieving Loudspeaker Design Goals Using Multiphysics Simulation
June 11, 2021 by audioXpress Staff

Achieving Loudspeaker Design Goals Using Multiphysics Simulation

Dolby Laboratories and COMSOL join the Audio Product Education Institute in a discussion on the role of modeling and measurements in the loudspeaker design process. The webinar, June 16 (12pm EDT) shares speaker design project experiences, detailing how simulation, measurements, and experiments help in meeting projects' requirements. The use of simulation in audio system design and multiphysics modeling of loudspeakers is addressed.
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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.
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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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Comprehensive Transducer Testing in 24 Minutes
May 27, 2021 by Andrew Taylor

Comprehensive Transducer Testing in 24 Minutes

This article illustrates how the latest Klippel Multi-Scanning Workbench solution allows measurements across several domains (acoustical, mechanical, electrical, and magnetic) while working from non-anechoic environments. The author uses a practical characterization of balanced mode radiator (BMR) loudspeakers, which require a more complex approach when compared to conventional cone-based woofers or dome-tweeters. This article was originally published in Voice Coil, May 2021.
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