All items tagged with test and measurement (415)

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.

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.

Headphones, Subwoofers, and Cutting-Edge Woofers in Voice Coil June 2021

May 26, 2021 by audioXpress Staff

Headphones, Subwoofers, and Cutting-Edge Woofers in Voice Coil June 2021

Voice Coil June 2021 explores the CTA-2010 Standard Method of Measurement for Subwoofers, and follows with a scheduled directory of Headphone Test & Measurement Equipment suppliers and solutions. James Croft reviews an interesting patent exploring a combination design with dual-diaphragm compression drivers, and Vance Dickason characterizes the much-anticipated SB Acoustics Satori MW16TX-8 Textreme Cone 6.5" Woofer, and the very original BDNC BGF-46166-18-4-003 Glass-Composite Diaphragm Woofer. Now available in print and digital.

LYNX Technik Launches Multi-Format Portable Waveform Monitor and Vectorscope

May 24, 2021 by audioXpress Staff

LYNX Technik Launches Multi-Format Portable Waveform Monitor and Vectorscope

LYNX Technik, a manufacturer of modular signal processing interfaces and test equipment from Weiterstadt, Germany, announced its new WFM 1801, a portable multi-format and multi-standard waveform monitor with built-in vectorscope and audio monitoring. For anyone working with digital video and audio signals this is a practical solution that effectively replaces the much more expensive (and heavier) rackmount or lab bench systems.

Quantifying Acoustic Sources Through Sound Power Measurement - White Paper Available

May 19, 2021 by Special Content

Quantifying Acoustic Sources Through Sound Power Measurement - White Paper Available

Andrew Barnard, Ph.D., INCE Board Certified from The Pennsylvania State University, touches on the basic source-path-receiver paradigm for white goods sound generation, focusing on the source in his latest research article. Understanding the source-path-receiver model is becoming increasingly important when determining proper measurement techniques for white goods noise radiation. With easy access to white goods data, consumers are more educated than ever on making their purchasing decision.

HEAD acoustics and Rohde & Schwarz Test Voice over 5G New Radio Communication Quality

May 10, 2021 by audioXpress Staff

HEAD acoustics and Rohde & Schwarz Test Voice over 5G New Radio Communication Quality

Working together with Rohde & Schwarz, HEAD acoustics have created a test solution that was able to successfully verify the communication quality of 5G (VoNR)-capable devices. VoNR, or “Voice over 5G New Radio” is a call service which fully explores the capabilities in the SA architecture for 5G networks. Compared to other communication services, VoNR provides significantly lower latency and improved sound and picture quality, improving the calling experience.

Loudsoft Appoints New North American Agent

May 7, 2021 by audioXpress Staff

Loudsoft Appoints New North American Agent

Loudsoft, one of the leading global providers of loudspeaker and headphone design software and test equipment, announced the appointment of Andy Lewis of Sound Product Strategy as the new North American agent. Loudsoft, offers a complete range of FINE Design Software and Test & Measurement solutions, including speaker and headphone test systems, and the globally recognized FINE R+D)) Acoustic Audio Analyzer System.

Pico Technology Launches Its First 1 GHz Mixed-Signal Scope With Active Probes

April 29, 2021 by audioXpress Staff

Pico Technology Launches Its First 1 GHz Mixed-Signal Scope With Active Probes

Pico Technology announced a further development of its PicoScope 6000E Series mixed-signal oscilloscopes (MSOs) with the launch of four new 4-channel models, each of which can be configured with 16 optional digital channels. With bandwidths of 750 MHz or 1 GHz, 8-bit or 8/10/12-bit Flexible Resolution and up to 4 GS deep capture memory, these products enhance the existing PicoScope 6000E portfolio, adding to the 350 MHz and 500 MHz models that were introduced in 2020.

HEAD acoustics Releases Intuitive Structural Analysis Software Package

April 27, 2021 by audioXpress Staff

HEAD acoustics Releases Intuitive Structural Analysis Software Package

With the release of ArtemiS SUITE 12.5, HEAD acoustics introduced a complete structural analysis package, offering Time Domain Animation, Operational Deflection Shape (ODS), Shape Comparison Tool and Modal Analysis. This will allow a unified software environment for simulation and project engineers to address structural dynamic issues within the ArtemiS SUITE with ease and efficiency.

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