All items tagged with frequency response (64)

NTi Audio Offers Rapid Frequency Response Measurements with the XL2

November 4, 2019 by audioXpress Staff

NTi Audio Offers Rapid Frequency Response Measurements with the XL2

Do you want to measure the frequency response of a speaker or audio component, and not have to wait until the lower frequencies stabilize? NTi Audio offers an innovative and practical solution with its Minirator MR-PRO and XL2 range of measurement instruments. The measurement uses two new MR-PRO test signals and a new, matching measurement function in the XL2, in which the signals contain a 1-second and a 4-second cyclic pink noise, from which the XL2 can quickly calculate a stable measurement result in real time.

Fresh From The Bench: Examining the miniDSP EARS Headphone Test Fixture

September 18, 2019 by Stuart Yaniger

Fresh From The Bench: Examining the miniDSP EARS Headphone Test Fixture

In the March 2019 edition of audioXpress, focusing on Test and Measurement, Stuart Yaniger explored the new Earphone Audio Response System or EARS, which miniDSP introduced as an affordable test jig for headphone measurements. Basically, this is a plug & play USB audio streaming device, featuring dual low noise calibrated mics with interchangeable silicon ears. But is it really the answer to bring "headphone measurements to the masses," as the manufacturer intended?

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Need a Dedicated Spectrum Analyzer? B&K Precision Just Announced its Slim 2680 Series

April 16, 2019 by audioXpress Staff

Need a Dedicated Spectrum Analyzer? B&K Precision Just Announced its Slim 2680 Series

B&K Precision, the manufacturer of reliable, cost-effective test and measurement instruments announced its evolution of RF test equipment with the New 2680 Series of Spectrum Analyzers. This series includes a pre-amplifier, 2D spectrum monitor and advanced measurements such as channel power, adjacent channel power and occupied bandwidth, which are options on most competing models. It also includes advanced measurement options and pre-amp for RF design and verification.

Dirac Research Makes PC Market Debut With Sound Optimization for Fujitsu

March 26, 2019 by audioXpress Staff

Dirac Research Makes PC Market Debut With Sound Optimization for Fujitsu

Dirac Research announced that its sound optimization technologies are now incorporated into the new line of Fujitsu PCs produced by Fujitsu Client Computing Limited (Kawasaki, Japan). According to Dirac General Manager of Mobile Erik Rudolphi, the expansion effectively transforms the audio experience delivered by desktop and laptop computers and points the way to the future for a product category that is increasingly being used for gaming and media streaming.

Beyond Thiele/Small DUMAX and Klippel Driver Measurement Systems

March 13, 2019 by Thomas Perazella

Beyond Thiele/Small DUMAX and Klippel Driver Measurement Systems

Anyone who is serious about designing a loudspeaker using dynamic drivers is either familiar with, or has used, Thiele/Small parameters, generally accepted as ways to predict driver behavior in different enclosures. But there are other measurement methods we can use to determine and quantify nonlinearities: the DUMAX system, produced by DLC Design, and the Klippel Analyzer System by Klippel GmbH. This article was originally published in audioXpress, March 2003.

AcoustiTools AR Acoustical Analysis Now Available on iPhone and iPad

February 25, 2019 by audioXpress Staff

AcoustiTools AR Acoustical Analysis Now Available on iPhone and iPad

Introduced at NAMM 2019 by Acoustic Masterminds, the new AcoustiTools app for iOS is now available in the Apple Store and provides a collection of cutting-edge, 3D acoustic measurement tools. Using advanced scanning abilities, augmented reality, 3D visualizations, patented and patent-pending technology, Acoustic Masterminds' AcoustiTools makes it easier to solve acoustic issues and creating superior listening environments from massive arenas to small recording studios and home theaters.

Sonarworks Redefines Music Experience for Mobile Devices with Updated Mobile App

January 9, 2019 by audioXpress Staff

Sonarworks Redefines Music Experience for Mobile Devices with Updated Mobile App

Pioneering audio calibration software company Sonarworks has announced the launch of its new Sonarworks True-Fi mobile app at CES 2019. The updated mobile app, which provides audio calibration references on both iOS and Android for nearly 300 headphone models, has already launched in ‘early access’ and will be available for purchase later this year in the App Store and Google Play at a price of $3.99 USD per month, or as a lifetime license for $99 USD. Existing Sonarworks users who already own the desktop version will be provided a free upgrade option to a lifetime license for the mobile app.

A Loudspeaker That Can Play Square Waves?

December 27, 2018 by Bohdan Raczynski

A Loudspeaker That Can Play Square Waves?

This article describes a DSP (Digital Signal Processing) technique developed to correct loudspeakers’ frequency domain and time domain distortions. Performance improvements, observed using square wave excitation, are documented here in time domain and frequency domain. This article was originally published in audioXpress, June 2010.

Audio Precision Releases APx Software Version 5.0 Adding Transfer Function Measurement, Cross-Spectral Analysis Of Arbitrary, Broadband Signals

December 20, 2018 by audioXpress Staff

Audio Precision Releases APx Software Version 5.0 Adding Transfer Function Measurement, Cross-Spectral Analysis Of Arbitrary, Broadband Signals

With the announcement of its brand new APx555 B Series two-channel audio analyzer, Audio Precision also unveiled the updated version 5.0 of its APx audio measurement software. With this release, AP has added the ability to measure the transfer function of electronic audio and electroacoustic devices using any broadband signal. Release 5.0 also enables electronic activation of software option licenses, eliminating the iButton requirement for such options with earlier versions of APx audio measurement software.

Application Note: All You Need to Know About Loudspeaker Electroacoustic Measurements

November 7, 2018 by audioXpress Staff

Application Note: All You Need to Know About Loudspeaker Electroacoustic Measurements

This 33-page application note provides an overview of the key electroacoustic measurements used to characterize the performance of loudspeaker drive units and loudspeaker systems, focusing on the most important objective measurements and referring to industry standards for guidance. Download the Audio Precision application note now!

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