GRAS Adds TEDS Functionality to Couplers, Ear Simulators, and Head and Torso Systems

GRAS Sound & Vibration, now part of Axiometrix Solutions, has confirmed that all its ear simulator test platforms now include Transducer Electronic Data Sheet (TEDS) calibration functionality. GRAS, together with sister company Audio Precision, has long focused on incorporating TEDS in all systems to ensure reliable data and to ease all aspects of installation and test platform setup.

Following presentations at the 2019 AES International Headphone Conference in San Francisco or ISEAT in China, GRAS Sound & Vibration has now officially expanded its family of ear simulators with the launch of a model specially designed for the testing of high resolution audio capable headphones. Expanding on the GRAS RA0401/02 High-Frequency Ear Simulator, based on the standard IEC 60318-4 and extending the useful frequency range to 20 kHz, the new GRAS RA0403/04 Hi-Res Ear Simulator measures a frequency range to 50 kHz and beyond.

Following previous sessions on the West Coast, in response to popular demand, Listen and G.R.A.S. Sound & Vibration have announced new headphone testing seminars in Chicago (October 13) and Boston (October 16). The jointly promoted training events allow participants to learn about the latest in headphone test systems and methods from design to EOL Test. There is no charge for this one-day seminar and lunch will be provided, but participants should register asap.

audioXpress March 2016 issue focused on Test and Measurement and featured an exclusive review of a new very important device for the audio industry. In this article, Mike Klasco discusses the new G.R.A.S. 43BB Low-Noise Ear Simulator, which enables to test headphones, earphones, and hearing aid devices with an extended bandwidth, up to 20 kHz. This is an industry first and the new G.R.A.S. 43BB solution will be of great interest globally.

“I Can Hear It. Why Can’t I Measure It?” is the title of an excellent article written by Dan Foley and featured in this month’s issue. It could also be the slogan for our audioXpress March 2016 issue, which focuses on Test and Measurement. We tried to combine reviews, and practical and theoretical perspectives for this issue. Download it now!