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Got a question?
If you have a question, feel free to contact us:
GRAS Sound & Vibration
Headquarter | gras@grasacoustics.com
UK | sales-uk@grasacoustics.com
USA | sales-usa@grasacoustics.com
China | cnsales@grasacoustics.com
South Korea | sales-kr@grasacoustics.com
GRAS worldwide
Accurate, Repeatable Acoustic Data for XR Device Development
AI glasses, AR/VR headsets, and next-generation XR wearables depend on accurate spatial audio, clear voice pickup, and stable near-ear acoustics to deliver natural and immersive user experiences. Achieving this requires measurement tools that capture the real-world acoustic behaviour of devices worn directly on the human head.
GRAS provides the precision, repeatability, and human-representative measurement solutions engineers rely on to validate spatial audio performance, ANC behaviour, leakage effects, and beamforming microphone systems with confidence. All of this using human-like acoustic test fixtures that provide realistic fitting of your device.
What You Can Test:
- Spatial audio & HRTF-based playback accuracy
- Beamforming performance & near-field voice pickup testing
- General acoustic performance of your device (frequency response, THD, max SPL, channel balance, etc.)
- Active noise cancellation (ANC) & transparency mode
- Fit, leakage, and user-dependent acoustics
- In-ear and near-ear SPL for XR glasses and wearable speakers
- Acoustic performance with different ear sizes
Looking to evaluate a wearable audio prototype?
Speak with a Representative ›
Acoustic Test Systems
for Next-Gen AI & XR Devices
Whether you are developing AI glasses, AR/VR headsets, MR visors, or audio-enabled smart eyewear, GRAS delivers uncompromising measurement stability and lifelike realism—supporting both advanced R&D and scalable production testing.
| Solution | What is it? | Key Benefits | Learn More |
|---|---|---|---|
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KEMAR 45BC Head & Torso Simulator |
Head & Torso Simulator with Mouth Simulator option. Available in multiple configurations with different types of pinnae and ear simulators. | Human-representative geometry; repeatable binaural response; IEC/ITU compliance; User reconfigurable; Mouth simulator allows for device built-in microphone performance tests | › |
|
RA040X Ear Simulator Series |
Different ear simulator options to be used with the GRAS KEMAR. RA0402 High-Frequency ear simulator for reliable testing up to 20 kHz. RA0404 Hi-Res ear simulator for Hi-Res certification and tests up to 50 kHz. | IEC-aligned ear transfer impedance simulation; high repeatability | › |
|
43BB Low-noise Ear Simulator System |
For active circuitry acoustic noise characterization. Measure the hiss-noise generated by Bluetooth, ANC or any other active circuits in your device. | Low noise floor; measure noise levels close to the human hearing threshold; measure noise that can be perceived by most humans but cannot be measured by most other ear simulators. | › |
We can help you define the optimal configuration.
Get a System Recommendation >
Customized Test Solutions for Advanced AR/VR & AI Wearable Devices
Every AI or XR device presents unique acoustic challenges—fit and leakage behavior, spatial playback characteristics, microphone placement, beamforming performance, or user-dependent ear acoustics.
If your device requires a specific test method or a non-standard measurement setup, GRAS engineers are ready to evaluate your requirements and define the right approach.
We work closely with your team to develop a tailor-made test solution that ensures accurate, relevant, and repeatable acoustic data.
Let’s explore your options together.
Request a Consultation ›
Reliable Acoustic Data
for XR Device Development
From concept validation to production QA, GRAS helps engineering teams ensure the acoustic performance users expect from immersive AI and XR devices.
