All items tagged with loudspeaker measurements (76)

FORCE Technology Partners with Sound Hub Denmark to Support Sound Quality Testing

December 14, 2022 by audioXpress Staff

FORCE Technology Partners with Sound Hub Denmark to Support Sound Quality Testing

FORCE Technology, a large technology consultancy and service company and one of the large certification institutes in Denmark, providing on-site inspections, measurements, and calibration laboratories, established a partnership on product sound quality testing with Sound Hub Denmark. The goal is to reinforce the work of the many audio companies that are already using the resources offered by the Sound Hub, while also expanding the range of services available.

Voice Coil December 2022 Improves Loudspeaker Measurements

November 29, 2022 by Joao Martins

Voice Coil December 2022 Improves Loudspeaker Measurements

Voice Coil December 2022 features an updated directory of Measurement Microphones Vendors, Mike Klasco writes about how to Enhance Low-Frequency Performance, and Vance Dickason reminds us that there is a more realistic way to map speaker resonances. Test Bench characterizes two tweeters from Beyma's new Near and Mid Field (NMF) series: the T-25M 1" aluminum/magnesium alloy metal dome tweeter, and the similar T-25S 1" silk dome tweeter.

Listen Releases Free Automated Test Sequence for AES75-2002 Measurements

November 18, 2022 by Joao Martins

Listen Releases Free Automated Test Sequence for AES75-2002 Measurements

Listen is the first test and measurement company to automate measuring loudspeakers to the new AES75-2022 (M-Noise) standard for Maximum SPL. This removes subjectivity, increases reliability, and saves time. The test sequence, developed for use within the company’s popular SoundCheck audio test and measurement system, is available free of charge on Listen’s website. And Listen is now offering the new Portland Tool & Die MDT-4000 audio measurement turntable, fully controllable from within SoundCheck.

Closer to Home. audioXpress October 2022 Is Now Available

September 9, 2022 by audioXpress Staff

Closer to Home. audioXpress October 2022 Is Now Available

There's a lot of everything in audioXpress October 2022. Starting with a market update on audio for Residential Integration. Next, Jonny McClintock shares The Story of aptX, Gary Galo reviews Sumiko phono cartridges and new 78 rpm stylus, Richard Honeycutt explains RT Measurement, Frans de Wit tackles the design of a DC Power Supply, Ken Bird builds a pair of tower speakers with Oaktron drivers manufactured in the US, and Christopher Paul writes about Triode Common Cathode Stages and its controversies.

audioXpress September 2022 Speaker Focus Issue Now Available

August 11, 2022 by audioXpress Staff

audioXpress September 2022 Speaker Focus Issue Now Available

The September 2022 Speaker Focus issue of audioXpress discusses speaker design and testing tools and features two fascinating speaker R&D stories on the Holoplot X1 Matrix Array and Motion Feedback Desktop Subwoofers for nearfield studio application. Geoff Hill explains the latest IEC loudspeaker measurement standards, Roger Shively reports from the AES 2022 Automotive Audio conference, Christoph Sladeczek writes about Audio Objects as Platform Technology in Vehicles, and much more.

RCF Sponsors PAcalculate App Update with Subwoofer Array Modeling

April 6, 2022 by audioXpress Staff

RCF Sponsors PAcalculate App Update with Subwoofer Array Modeling

A long term effort by José Brusi, the principal of Brusi Acoustics consulting firm and an independent laboratory for loudspeaker testing based in Valencia, Spain, PAcalculate is a very useful mobile app for audio professionals working in sound reinforcement. The latest PAcalculate v1.3.2 release was recently described by Brusi as "the most exciting update to date for the calculator app that tens of thousands of proaudio professionals keep installed in their mobile phones."

Klippel Updates dB-Lab and QC Software with Improved Features for R&D and Production

April 4, 2022 by Joao Martins

Klippel Updates dB-Lab and QC Software with Improved Features for R&D and Production

Klippel has released a new software update for the Klippel Analyzer System with various new features for both R&D and QC applications. The most important updates include an improved Time Frequency Analysis (TFA) module, the official release for the QC 3D Spectrogram Limits (3DL) optional module for Quality Control (QC) testing, while adding Impedance (IMP) for T/S parameter testing and Motor + Suspension Check (MSC) tasks, among other features, to the QC Stand-alone software. The update is free of charge for all users running dB-Lab 212 or QC7.

AES Announces New AES75 Standard for Loudspeaker Performance Measurement

March 22, 2022 by audioXpress Staff

AES Announces New AES75 Standard for Loudspeaker Performance Measurement

More than three years past since M-Noise was proposed as a new test signal for standardized measurement of a loudspeaker system’s maximum linear output, the Audio Engineering Society has announced the adoption and publication of AES75-2022, “AES standard for acoustics - Measuring loudspeaker maximum linear sound levels using noise.” The new standard addresses the need for a practical and cohesive procedure for the prediction of loudspeaker performance.

Klippel KA3 Modules — Time Frequency Analysis

January 19, 2022 by Vance Dickason

Klippel KA3 Modules — Time Frequency Analysis

While Voice Coil Test Bench reviews only make use of the Large Signal Identification (LSI) data from the Klippel analyzer, the reality is that there is an amazing list of 30 modules available for the KA3 that are seriously valuable for transducer and system development. As space permits, I will be covering a number of these modules in future issue of Voice Coil. The first module in this series is the Time Frequency Analysis (TFA) module. This article was originally published in Voice Coil, October 2021

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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