All items tagged with test and measurement (423)

Practical Test & Measurement: Testing Smart Devices

February 4, 2020 by Steve Temme

Practical Test & Measurement: Testing Smart Devices

Voice applications are currently fostering the largest growth in the audio industry. This article addresses the challenges and solutions for testing the wider class of “smart” – connected, voice-activated, and sensor-equipped – devices, proposing solutions to implement basic acoustic tests and real-world tests of greater complexity. This article was originally published in audioXpress, April 2019.

Keysight Helps Accelerate Industry Adoption of USB4 Standard

February 4, 2020 by audioXpress Staff

Keysight Helps Accelerate Industry Adoption of USB4 Standard

Keysight Technologies announced that the company's early research and development in high-speed digital technology will enable the industry to accelerate adoption of the recently released USB4 specification. The company confirmed it will offer cost-effective test and measurement solutions that accelerate the development, implementation and deployment of new USB4 compatible devices.

Brüel & Kjær Recommendations for Smart Speaker Testing

February 3, 2020 by audioXpress Staff

Brüel & Kjær Recommendations for Smart Speaker Testing

Brüel & Kjær Sound & Vibration Measurement is promoting a set of recommendations for smart speaker testing, putting focus on the importance of realistic testing when developing and incorporating voice recognition functionalities into consumer products. The Danish sound and vibration specialist recommends the use of its high-frequency HATS Type 5218 and Mouth Simulator Type 4227 systems with human voice characteristics for realistic speech and sound testing of voice-operated devices.

Fresh From the Bench: Audio Precision APx555 B Series Audio Analyzer

January 29, 2020 by Stuart Yaniger

Fresh From the Bench: Audio Precision APx555 B Series Audio Analyzer

Stuart Yaniger offers his review of the latest Audio Precision APx555 B Series audio analyzer, and the corresponding new updated V5 software for the APx series. The APx B series now features a new High Performance Sine Generator and a High Performance Sine Analyzer, which Audio Precision claims reduces THD+N to better than -120 dB, with a 1 MHz bandwidth and Fast Fourier Transforms (FFTs) of up to 1.2 million points. This article was published in audioXpress, December 2019.

PCB Completes Construction of $1 Million Clean Room Facility

January 6, 2020 by audioXpress Staff

PCB Completes Construction of $1 Million Clean Room Facility

As a leading global sensor supplier, PCB Piezotronics continues to invest in state-of-the-art pressure assembly operations. The company, a wholly owned subsidiary of MTS Systems Corporation, announced the completion of new environmentally controlled clean rooms totaling 4,300 sq. ft. at their Walden Avenue headquarters. Earlier this year, the sensor manufacturer began assembly of all pressure and force products in this new state-of-the-art facility.

Earthworks Debuts M23R Reference Measurement Microphone

December 30, 2019 by audioXpress Staff

Earthworks Debuts M23R Reference Measurement Microphone

Part of Earthworks' infinitely matched series of measurement microphones, the new M23R was designed by the New Hampshire company to be a reference measurement microphone with an affordable price. This new omnidirectional from Earthworks is able to sustain extremely powerful SPL levels and is extremely stable with temperature variations, making it perfect for multiple acoustical measurement applications, including front-of-house measurements.

Klippel Supports MegaSig U980 Bluetooth Interface for R&D and QC Line Testing

December 16, 2019 by audioXpress Staff

Klippel Supports MegaSig U980 Bluetooth Interface for R&D and QC Line Testing

Klippel now officially distributes and supports the MegaSig U980 professional Bluetooth interface. Together with the Klippel Analyzer System, this USB-controlled, analog signal converter supports reliable testing of any audio device enabled with Bluetooth wireless technology such as portable speakers, wireless headsets, and true wireless earbuds with a fully integrated solution for both lab and end-of-line context.

Kick Off Another Exciting Year for Audio Technology with audioXpress!

December 11, 2019 by audioXpress Staff

Kick Off Another Exciting Year for Audio Technology with audioXpress!

audioXpress January 2020 is now available in print and download! To start 2020 in the best possible way, this edition includes a Market Update about Speakers and Transducers, followed by a report of the COMSOL Boston Conference where the latest Multiphysics 5.5 Release was unveiled, a great review of the Cambridge Audio Edge W amplifier, and an in-depth article in which Steve Temme discusses tools and techniques to accurately measure voice-controlled and connected devices. Plus many more great theory articles and practical knowledge shared by audioXpress experts.

DATS V3 Updated Audio Measurement Tool for Speaker Designers and Audio Engineers

November 27, 2019 by audioXpress Staff

DATS V3 Updated Audio Measurement Tool for Speaker Designers and Audio Engineers

After a decade of widespread use, the Dayton Audio Test System (DATS) has acquired an impressive reputation for fast and accurate testing. A must have tool for the speaker builder and a very valuable tool for anyone who regularly works with audio equipment, Dayton Audio has taken the easy-to-use audio test system and improved it in almost every way when creating the DATS V3 Computer Based Audio Component Test System.

Listen Creates Harman Target Response Curve Test Sequence for Headphones

November 26, 2019 by audioXpress Staff

Listen Creates Harman Target Response Curve Test Sequence for Headphones

As a complete audio test solution in a single package, Listen's SoundCheck software is continuously updated to reflect industry's innovations and changing requirements. As part of its commitment to continuously offer the latest test and measurement routines, the Boston company just announced a new SoundCheck test sequence which predicts listener preference of headphones based on statistical models developed by Harman International.

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