High-Performance Acoustic Transducers by GRAS

The Ideal Testing Setup for Your Audio Application

From consumer electronics to hearing aids, we support you in identifying the most suitable measurement solution. This includes hearing enhancement devices (OTC hearing aids), which often present a mix of testing challenges found in both consumer audio and medical-grade hearing technologies.

Automotive Acoustic Testing Is Advancing

As vehicle technology continues to evolve, so do expectations for in-cabin audio quality and noise control—especially in electric vehicles, where sound design is more critical than ever. These growing demands have outpaced what traditional ½" microphones can handle. Introducing a next-generation microphone solution designed to meet the full range of in-cabin acoustic testing requirements.

Introducing a New Line of Ear Simulators

GRAS offers a comprehensive selection of test equipment for headphone measurement applications. Building on the foundation of the IEC 60318-4 ear simulator (commonly known as the 711 coupler), GRAS has introduced two new ear simulators that meet the standard while also addressing extended needs—including high-frequency and Hi-Res testing up to and beyond 50 kHz. These solutions are designed to support a wide range of acoustic measurement requirements with precision and reliability.

Advanced Acoustic Sensors for NVH Applications

GRAS, a global leader in acoustic sensor innovation, delivers newly enhanced microphones designed to improve the efficiency and accuracy of automotive NVH (Noise, Vibration, and Harshness) testing. These state-of-the-art solutions support reliable data collection for more effective vehicle sound and vibration analysis.

The Thinnest Condenser Microphones in the World

GRAS introduces its Ultra-Thin Precision (UTP) Microphones, developed using groundbreaking patented technology. These microphones are specifically engineered for in-situ boundary layer measurements, offering high accuracy with minimal flow disturbance—ideal for applications where precision and low-profile design are critical.