All items tagged with test and measurement (395)
Audio Precision Announces APx Audio Software v4.6 with Chirp-Based Measurements for Smart Device Testing
May 24, 2018 by Joao Martins

Audio Precision Announces APx Audio Software v4.6 with Chirp-Based Measurements for Smart Device Testing

Audio Precision announced the release of APx audio measurement software version 4.6, with a first public demonstration planned for the 144th International AES Convention in Milan. Included in this latest edition of the popular test software will be the ability to perform measurements using the log-swept sine chirp — such as acoustic response — in an open-loop configuration, an enhancement ideally suited to the test and evaluation of smart devices (e.g., smart speakers, smartphones).
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HEAD acoustics Improves Evaluation of Voice Control Systems
May 24, 2018 by Joao Martins

HEAD acoustics Improves Evaluation of Voice Control Systems

HEAD acoustics has launched a new version of VoCAS (Voice Control Analysis System), the company’s software for evaluating voice control systems. The turnkey test solution now supports the company’s modular multi-channel labCORE front end. According to the Herzogenrath, Germany-based company, VoCAS offers manufacturers even more possibilities to test their ASR system (Automatic Speech Recognition) in vehicles, mobile phones or smart speakers objectively and reproducibly.
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Fresh From the Bench: G.R.A.S. Sound & Vibration RA040X Ear Simulator
May 15, 2018 by Brent Butterworth

Fresh From the Bench: G.R.A.S. Sound & Vibration RA040X Ear Simulator

Brent Butterworth reviews the new RA040X Ear Simulators from G.R.A.S. Sound & Vibration. Measuring headphone response at frequencies above-10 kHz has been an imprecise, non-standardized process. The new RA040X ear simulator represents part of an effort by G.R.A.S. Sound & Vibration to update headphone measurement equipment to suit the needs of today’s headphone industry, and make the measurements more meaningful. This article was originally published in audioXpress, March 2018.
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GRAS Sound & Vibration Announces New 1/2” CCP Low-noise Microphone
May 2, 2018 by audioXpress Staff

GRAS Sound & Vibration Announces New 1/2” CCP Low-noise Microphone

GRAS Sound & Vibration introduced a new, 1/2” CCP low-noise microphone that is particularly well suited for the consumer electronics industry. GRAS offers an extensive line of low-noise microphones for measuring low noise in confined spaces, or environments with a low noise floor. Now, the world-renowned manufacturer of high quality measurement microphones and related acoustic sensors, confirmed the availability of the 47HC model that is particularly well suited for use in the automotive NVH and consumer electronics industries.
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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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