Meeting the Demands of Modern EV Sound Measurement: The Rise of the ¼” Microphones

In the rapidly evolving landscape of electric vehicle (EV) technology, a recent GRAS whitepaper sheds light on the critical role of ¼” microphones in acoustic testing. They represent a significant step forward in ensuring consistent, high-quality acoustic testing across the industry that aligns with recent recommendations from the AES.

From one dedicated family to another: The GRAS story continues

In 2024, it is 30 years since visionary acoustics pioneer, Gunnar Rasmussen, founded Gunnar Rasmussen Acoustic Services – today known as GRAS Sound & Vibration. What has followed since then is a fairy tale story of growth and acoustic achievements, all built on Gunnar Rasmussen’s guiding vision of innovation and customization. Today, GRAS is part of the Axiometrix family of measurement solution providers. But Gunnar’s vision and values still guide the company.

The Future of the In-Cabin Soundscape: How to Meet Evolving Consumer Expectations

The landscape of in-cabin audio is undergoing a remarkable transformation. As the automotive industry shifts from internal combustion engines to electric vehicles (EVs), the acoustic environment within vehicles is changing, too. This transition is driven not only by the technological advancements in automotive design but also by increasing consumer expectations for quieter cabins and more immersive sound experiences.

Where are we going as a company, and what are the biggest and most interesting challenges in building high precision measurement microphones today? GRAS Vice President of Product Management, Morten Høgholm Pedersen, can’t wait to see, either!

Pass-fail windows

On a production line, the devices under test (DUTs) have a set of specifications from R&D or the customer that they must comply with. This can be viewed as a window on a graph.