Audio Precision and G.R.A.S. California Master Class on Testing Headphones and Powered Speakers

Created on 2013-10-14 20:26:00

Attend for best practices from two world-class leaders in electro-acoustic test and measurement 

October 14, 2013 — Beaverton OR and Holte Denmark. Audio Precision, the recognized standard in audio test, and G.R.A.S. Sound and Vibration, a globally renowned designer and manufacturer of precision acoustic measurement solutions, today announced a masterclass in Los Angeles and Cupertino on November 12 and 14 respectively discussing best practices for making accurate and repeatable measurements on high quality headphones and powered speakers.

The class is designed specifically for R&D / test engineers and engineering technicians to learn how to save time in measurements, and make your testing more accurate, more reliable and more efficient. 

Senior application engineers from both companies will look at the point of convergence where electro-acoustic needs meet electronics and address common challenges in test setup.

Topics will include:

•     Performing measurements in non-ideal settings

•     High-frequency headphone measurements

•     Bluetooth challenges

•     Perceptual tests PESQ & POLQA vs. sine-based measurements

•     Latest application and technology trends

The session will include hands-on time at demo stations to implement what was learned and will end with a post-session Q&A, which will include select beverages and an opportunity for peer-to-peer networking.

The seminar begins at 11am and ends at 5pm – lunch will be provided. To ensure a good engineer-to-trainer ratio, attendance is strictly limited to 35 people.

How to attend

The master classes are open to the public. Tickets cost $95 and can be purchased online by following the links below.


Tuesday, November 12 

El Segundo, CA.

Register for this event:

Thursday, November 14 

Cupertino, CA.

Register for this event:


For more information, please contact:

Jeff Phillips

[email protected]

Tel: 800-231-7350


About Audio Precision

Audio Precision is the recognized standard in audio test and measurement. Since 1984, AP has offered high performance audio analyzer instruments and applications to help engineers worldwide design and manufacture all types of consumer, professional and industrial audio products. For more information, visit


About G.R.A.S. Sound and Vibration

G.R.A.S. Sound & Vibration offers the most comprehensive selection of microphones and preamplifiers in the industry. Since the establishment in 1994, G.R.A.S. have been 100% dedicated to developing and manufacturing high-quality measurement microphones and related acoustic equipment. For more information, visit