All items tagged with audio measurements (127)
Audio Precision Launches HDMI2+eARC Module for HDMI2 and eARC Audio Channels Testing
August 30, 2023 by Joao Martins

Audio Precision Launches HDMI2+eARC Module for HDMI2 and eARC Audio Channels Testing

Audio Precision introduced a new HDMI2 + eARC module for the APx range of audio analyzers, providing fully integrated digital I/O connection to audio devices equipped with HDMI2 and eARC. This innovative solution gives designers and manufacturers the ability to easily test audio in a wide range of HDMI audio-compatible devices, including streaming media players, televisions, soundbars, receivers, and Blu-ray players.
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Product Development, Speakers, and Acoustic Analysis in audioXpress September 2023
August 11, 2023 by audioXpress Staff

Product Development, Speakers, and Acoustic Analysis in audioXpress September 2023

audioXpress September 2023 is a rich issue in the amount of audio topics explored and depth of analysis. Learn about the latest sound meters and acoustical simulation tools, what immersive audio really is, and what is possible with the development kits for true wireless earbuds from Knowles. Roger Shively does a full analysis of the Dinaburg C2S Concentric Coplanar Stabilizer speaker technology, Charlie Laub explains how to build a Minimally Baffled Dipole Loudspeaker, and Gary Gesellchen reveals viable bass reflex speaker designs.
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Fresh From the Bench: RødeTest FuzzMeasure Audio and Acoustic Measurement Software
July 26, 2023 by Luke McCready

Fresh From the Bench: RødeTest FuzzMeasure Audio and Acoustic Measurement Software

This audio measurement software creation from Canadian software designer Chris Liscio was sold to Røde in 2018. FuzzMeasure is the very first product of the new RødeTest division of Røde Microphones, a subsidiary of Freedman Electronics, also the owner of Aphex, Event Electronics, and SoundField brands. FuzzMeasure audio measurement software stands out for its high-quality graphs and for tucking an immense amount of control into a sleek, minimal interface. This article was originally published in audioXpress, May 2020.
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Book Review: Learning Audio Testing and Measurements
July 12, 2023 by Jan Didden

Book Review: Learning Audio Testing and Measurements

For those who need to refresh their knowledge or learn about audio test and measurements, Jan Didden reviews a great - and big! - book on the topic. Audio Tests & Measurements by Igor S. Popovitch is one of the many self-published works by this proficient writer based in Australia, also the author of several popular books on vacuum tube amplifiers. This particular book runs about 180 pages, but that is deceiving as the book’s format (A4 size) is about twice the size of most soft cover books.
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You can DIY! Build an Audio Dummy Load
May 25, 2023 by Gary Galo

You can DIY! Build an Audio Dummy Load

An audio load is an essential piece of test equipment for any audio electronics workshop. Having created the very popular Heathkit ID-5252, more than 35 years ago, Gary Galo decided to design a new option for everyone to build now. The ID-5252 contains four 8Ω, 60W power resistors. The biggest limitation of the Heathkit load is power handling. Series and parallel combinations can be used to produce various resistances and power levels — up to 240W at 8Ω, using all four resistors. But, simultaneously testing both channels of a high-powered amplifier requires two ID-5252 units. Fortunately, the raw parts for building an audio load are easy to find.
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HEAD acoustics Announces Management Changes Following Hans Gierlich's Retirement Announcement
May 12, 2023 by audioXpress Staff

HEAD acoustics Announces Management Changes Following Hans Gierlich's Retirement Announcement

After 34 years with HEAD acoustics, Dr.-Ing. Hans Wilhelm Gierlich, the company's Technical Director and Head of Research in the Telecom Division, is retiring. At the same time, Aulis Telle, Technical Managing Director for Sound, Vibration and Perception is leaving the company. In response, HEAD acoustics confirmed two managing director positions resulting from an updated organizational structure with the appointment of Anne Geller-Gravez as Managing Director Sales and Marketing, and Matthias Wegerhoff as the new Technical Managing Director.
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Practical Test & Measurement: REST for Automated Test and Measurement
May 10, 2023 by Matt Taylor

Practical Test & Measurement: REST for Automated Test and Measurement

This article is a great introduction to the use of web interfaces, and embracing web standards for automated testing of audio equipment, fundamentally exploring the possibilities of REST - which stands for Representational State Transfer, a widely accepted set of guidelines for creating reliable web APIs. Written by the founder of Seattle, WA-based QuantAsylum, this contributed piece advocates an open-design philosophy for controlling and querying things via REST, and leveraging the know-how of millions of developers. This article was originally published in audioXpress, March 2022.
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HEAD acoustics Introduces Solutions for Bluetooth LE Audio Testing
May 9, 2023 by Joao Martins

HEAD acoustics Introduces Solutions for Bluetooth LE Audio Testing

LE Audio is an entirely new Bluetooth implementation introducing multiple exciting new opportunities for audio manufacturers, but also raising completely new challenges. As a leading source for audio measurement solutions, HEAD acoustics is updating its solutions to allow testing new Bluetooth LE Audio technologies. One of those is Auracast broadcast audio, which now can be fully tested and optimized with a HEAD acoustics labCORE test frontend.
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Lyceum Introduces Advanced Data Ingestor for Audio Measurement Data Management and Collaboration
April 27, 2023 by Joao Martins

Lyceum Introduces Advanced Data Ingestor for Audio Measurement Data Management and Collaboration

Lyceum unveiled the Advanced Data Ingestor, a solution designed to streamline audio measurement data management and collaboration. This tool automates repetitive data cleaning tasks and provides a cloud-based platform for sharing 'clean' data, significantly reducing the time-consuming process that engineers have faced for years. The solution facilitates real-time collaboration between manufacturers and product lead engineering teams, allowing for quicker issue identification and resolution.
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Fresh From the Bench: Echo AIO - A Cost-Effective Audio Test System
April 12, 2023 by Stuart Yaniger

Fresh From the Bench: Echo AIO - A Cost-Effective Audio Test System

Headquartered in Santa Barbara, CA, Echo Test + Measurement is a little company with a big impact on audio test and measurement. As many large consumer electronics companies started using its AudioFire studio sound cards for production line testing, Echo designed a highly cost-effective, modular range of USB-based audio test interface solutions, which Stuart Yaniger had the opportunity to evaluate. He completed a series of tests and shares his experiences with the new Echo AIO modular audio test system.
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