All items tagged with test and measurement (387)

Jonathan Novick Joins Avermetrics To Support Company's Expansion

February 24, 2017 by audioXpress Staff

Jonathan Novick Joins Avermetrics To Support Company's Expansion

Avermetrics, an innovator in electronic production test systems, announced the hiring of Jonathan Novick as Vice President of Sales & Marketing. Novick is now responsible for product launches and the worldwide sales and distribution of Avermetrics products. The appointment comes at a strategic moment when the company is preparing to expand its test and measurement portfolio with new solutions, soon to be unveiled.

HEAD acoustics Presents Improved Speech and Audio Analysis Systems at MWC 2017

February 21, 2017 by audioXpress Staff

HEAD acoustics Presents Improved Speech and Audio Analysis Systems at MWC 2017

Speech and audio quality specialists, HEAD acoustics GmbH from Herzogenrath, Germany, will be presenting its range of solutions at the Mobile World Congress (February 27 to March 2, 2017). Like many key development technology companies, HEAD acoustics will use the Barcelona show to demonstrate a new evaluation software of VoCAS (Voice Control Analysis System), as well as an update of its communication analysis software ACQUA 3.5.100.

VC Spotlight: CLIO Pocket User Report

February 15, 2017 by Vance Dickason

VC Spotlight: CLIO Pocket User Report

In this article, Vance Dickason explores Audiomatica's CLIO Pocket analyzer. Rather than go into detail regarding all the measurement routines available in CLIO Pocket - audioXpress already published a thorough review in the October 2015 issue - Dickason gives practical examples using measurements for a couple of drivers in the same way he does for his monthly column, Test Bench. This article was originally published in Voice Coil, March 2016.

audioXpress March 2017, Focus on Test and Measurement, Now Available!

February 13, 2017 by audioXpress Staff

audioXpress March 2017, Focus on Test and Measurement, Now Available!

A long-standing tradition, audioXpress' Focus on Test and Measurement 2017 is now available. Start with a thorough review of Audio Precision’s new APx1701 Transducer Interface; explore the DIM-100 device for interfacing and measuring with sound cards; build an Audio Dummy Load; learn how to measure Harmonic Distortion and discover the effects of Community Noise and their measurements. And just how good TIDAL's streaming quality actually is? All that and more in audioXpress March 2017. Get your copy now.

Smartphone Apps for Sound Measurement

February 4, 2017 by Richard Honeycutt

Smartphone Apps for Sound Measurement

In audioXpress' November 2015 Sound Control column, Richard Honeycutt, addressed the topic of Smartphone Apps for Sound Measurement. Touching on the challenges and benefits of the smartphone approach as a mobile test and measurement device, as well as reviewing available apps for iOS (Apple), Android, and Microsoft Windows, this an article that needs to be broadly shared while it is still up to date. Read the full article now available online.

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Tektronix Announces Automated USB 3.1 Type-C Test Solution

December 7, 2016 by audioXpress Staff

Tektronix Announces Automated USB 3.1 Type-C Test Solution

Tektronix announced an automated USB 3.1 Type-C transmitter test solution for Gen1 and Gen 2 that combines full SigTest support with DPOJET debug and analysis tools, allowing designers to bring devices with improved margins to market in less time. The new solution delivers 100 percent compliance test coverage as well as full support for the new Type-C connector, fixtures and associated channel tests.

HEAD acoustics Launches VoCAS Speech Recognition Evaluation Software

December 1, 2016 by audioXpress Staff

HEAD acoustics Launches VoCAS Speech Recognition Evaluation Software

German company HEAD acoustics launched VoCAS (Voice Control Analysis System), an efficient software analysis solution for evaluating speech recognition systems. From voice control in vehicles to the use of speech commands for smartphones, tablets or telephone hotlines, VoCAS allows quick and objective quality evaluation, under realistic and repeatable test conditions, of Automatic Speech Recognition (ASR) systems, found in an increasing number of applications today.

Target SPL and Required Amplifier Size

November 16, 2016 by Charlie Hughes

Target SPL and Required Amplifier Size

In a previous article (Loudspeaker Sensitivity: What’s a Watt Anyway? April 2010 Voice Coil), I examined the topic of loudspeaker sensitivity and how it may or may not relate to the overall sound pressure level (SPL) produced by a loudspeaker. The output capability of the amplifier driving the loudspeaker is of equal importance to achieving the target SPL from the direct field of a loudspeaker. This can also be related to the driving signal or the intended program material. This article was originally published in Voice Coil, May 2010.

Testing Loudspeakers: Which Measurements Matter, Part 2

November 16, 2016 by Joe D'Appolito

Testing Loudspeakers: Which Measurements Matter, Part 2

In this reference article, published by audioXpress in 2008, Joe D’Appolito shares his experiments with loudspeaker evaluation. In the two parts of this article, D’Appolito tries to answer the question: “Of all the measurements available to the designer, which ones are the best predictors of listener preference?" In over 30 years of designing loudspeakers, I have found the following measurements taken as a group provide the strongest predictor of loudspeaker preference available to us today,” he states.

Testing Loudspeakers: Which Measurements Matter, Part 1

November 10, 2016 by Joe D'Appolito

Testing Loudspeakers: Which Measurements Matter, Part 1

The controversy over subjective versus objective loudspeaker evaluation has raged on for decades. However, to my mind, there is no controversy. These criteria are simply two faces of the same coin. In over 30 years of designing loudspeakers, I have found the following measurements taken as a group provide the strongest predictor of loudspeaker preference available to us today. Want to know more? Read this reference article, originally published in audioXpress, September 2008.

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