All items tagged with test and measurement (401)
Audio Precision Engineers Contribute to “The Power of Sound,” Deliver Trio of Presentations at AES-Milan
April 26, 2018 by audioXpress Staff

Audio Precision Engineers Contribute to “The Power of Sound,” Deliver Trio of Presentations at AES-Milan

Audio Precision previewed its planned contributions to the 144th International AES Convention, Milan, Italy, May 23–26 at the NH Hotel Milano Congress Centre. Themed “The Power of Sound,” AES Milan will bring together audio professionals and advanced audio technologies from around the world for four days of audio immersion, experiences and networking. Audio Precision will promote three presentations, discussing smart speaker testing, speech intelligibility, and chirp-based measurements.
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Tektronix Introduces New Keithley DMM and DAQ to Simplify and Enhance Test and Measurement
April 20, 2018 by audioXpress Staff

Tektronix Introduces New Keithley DMM and DAQ to Simplify and Enhance Test and Measurement

Tektronix introduced the Keithley DMM6510 6½-digit Bench/System Digital Multimeter and DAQ6510 Data Acquisition and Logging Multimeter System. These new instruments combine the simplicity of a "pinch and zoom" touchscreen interface for easy and faster test setup and at-a-glance monitoring and display with the power of 15 different measurement functions, wide measurement ranges, multichannel measurements, and class-leading accuracy and sensitivity.
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User Report: Loudsoft FINE R+D Analyzer
April 19, 2018 by Vance Dickason

User Report: Loudsoft FINE R+D Analyzer

Beginning with the January 2018 issue of Voice Coil magazine, Vance DIckason implemented the Loudsoft FINE R+D analyzer into the Test Bench measurement protocol. This article provides details about the features in FINE R+D FINE R+D, a Fast Fourier Transform (FFT) analyzer packaged in a 1u rack, which is used with the recommended G.R.A.S. 0.25” Type 46BE microphone capsule and preamplifier body. This article was originally published in Voice Coil, December 2017.
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Brüel & Kjær Sound & Vibration will Merge with Hottinger Baldwin Messtechnik Forming New Company HBK
April 18, 2018 by audioXpress Staff

Brüel & Kjær Sound & Vibration will Merge with Hottinger Baldwin Messtechnik Forming New Company HBK

The companies Hottinger Baldwin Messtechnik GmbH (HBM) and Brüel & Kjær Sound and Vibration A/S (BKSV), both owned by UK-based Spectris plc, have announce that they will be merging their businesses. The merger will become effective on January 1st, 2019. The merger aims to redefine the concept of a complete solution, where the two companies will unite their expertise and provide an integrated offering, encompassing sensors, acquisition, preparation, evaluation and engineering services.
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Loudspeaker Measurement Tools from Physical Lab
April 11, 2018 by Vance Dickason

Loudspeaker Measurement Tools from Physical Lab

Physical Lab, based in Senden, Germany, is a fascinating company in that it not only manufactures loudspeaker test solutions directly aimed at speaker development and research, but also provides several engineering services for the loudspeaker industry. This article highlights the three loudspeaker measurement accessories that Physical Lab manufactures — the Physical Lab Mini Reference Amplifier, the Physical Lab Imp Box, and the Physical Lab ISO Box. The article was originally published in Voice Coil, December 2017.
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NTi Audio Introduces New Omnidirectional Sound Source and Amplifier
April 10, 2018 by audioXpress Staff

NTi Audio Introduces New Omnidirectional Sound Source and Amplifier

Measuring the sound insulation and reverberation time in multi-roomed buildings can become pretty tiring. Carrying a heavy amplifier and loudspeaker from room to room is also cumbersome. To better support the work of audio professionals and acousticians in their daily work, NTi Audio has developed a new lightweight, yet robust omnidirectional sound source, the DS3 Dodecahedron, together with the powerful PA3 Power Amplifier.
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Audio Precision Adds Speech Intelligibility Measurement Option for APx500 Audio Test Software
March 28, 2018 by audioXpress Staff

Audio Precision Adds Speech Intelligibility Measurement Option for APx500 Audio Test Software

Audio Precision announced the addition of a new speech intelligibility measurement option for APx500 audio test software based upon the ABC-MRT speech processing algorithm. The new ABC-MRT option provides an objective measure of speech intelligibility following the paradigm of the Modified Rhyme Test, offering an important capability for designing and validating a wide range of communication systems, products and components, especially those related to public safety.
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Audio Precision Expands Microphone Product Family
March 13, 2018 by audioXpress Staff

Audio Precision Expands Microphone Product Family

Audio Precision announced the expansion of its line of measurement microphones with the introduction of the 376M03, a calibrated microphone system combining a 1/2" microphone cartridge with a phantom-powered preamplifier - the 426M16 - in its 1/2" configuration. The new preamplifier combines the precision of calibrated, standardized measurement microphones with the convenience of ubiquitous mic accessories offering phantom power, balanced connections for improved immunity to induced noise, and easy connectivity via common XLR cables.
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Headphone Focus audioXpress April 2018 Edition, Now Available!
March 9, 2018 by audioXpress Staff

Headphone Focus audioXpress April 2018 Edition, Now Available!

Following our March Test and Measurement Focus edition, audioXpress April 2018 expands that focus to specifically include a comprehensive roundup of the latest earphone and headphone test solutions. Read the review of Audio Precision's AECM206 Binaural Headphone Test Fixture, learn about HEAD acoustics' latest modular measurement platform, and discover how Warwick Audio Technologies designed a completely new type of electrostatic transducer. Download audioXpress April 2018 now.
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Speaker and Microphone Measurements: Eliminate Reflections While Testing
March 6, 2018 by audioXpress Staff

Speaker and Microphone Measurements: Eliminate Reflections While Testing

Acoustic reflections in rooms, in the form of reverberation, contribute significantly to the characteristic of sound. In acoustic measurements for quality testing of loudspeakers and microphones, however, these reflections can produce inaccurate results and should therefore be excluded as far as possible. The measurement results must be reproducible and not significantly influenced by the room acoustics. In this article, NTi Audio explains how to remove reverberation from the measurement results.
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