All items tagged with loudspeaker measurements (83)
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.
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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.
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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."
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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.
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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.
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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
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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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Klippel Announces dB-Lab Software Updates and New Virtual Lecture 2022 Event
December 6, 2021 by audioXpress Staff

Klippel Announces dB-Lab Software Updates and New Virtual Lecture 2022 Event

Klippel announced a minor software update for both the R&D and QC software of the Klippel Analyzer System, free of charge for current users of dB-Lab major version 212 or QC 7. The update introduces the new Multi-Tone Measurement (MTON) and Multi-Tone Distortion Task (MTD) measurements, updates to the Near-Field Scanner (NCS) software and new capabilities for the Poly2SCN converter utility, which converts scan data from Polytec systems toto Klippel Software formats. And Klippel announced details of its 2022 Virtual Lecture event.
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Outline Announces Globe Source Radiator Acoustic Measurement Solution
November 29, 2021 by audioXpress Staff

Outline Announces Globe Source Radiator Acoustic Measurement Solution

Designed in collaboration with the Department of Mechanical And Industrial Engineering at the prestigious Brescia University in Lombardy, and engineered in Italy by Outline, the new Globe Source Radiator (GSR) high-power omnidirectional sound source solution provides a vital tool for acoustic analysis. Complemented with the Outline NG01 noise generator that can be controlled with a radio remote control, and the portable Outline L3000 DSP amplifier, the GSR offers a high-SPL solution for acoustics measurements in all environments, including large venues and spaces.
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