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GRAS Innovation Award 2025 – Game-Changer Winner
RWTH Aachen University, Germany
A High-Resolution Head-Related Transfer Function Data Set and 3D-Scan of KEMAR
By Hark Braren and Prof. Dr.-Ing. Janina Fels, Institute and Chair for Hearing Technology and Acoustics, RWTH Aachen University
The team at RWTH Aachen University has delivered a groundbreaking contribution to spatial-audio science with the project “A High-Resolution Head-Related Transfer Function Data Set and 3D-Scan of KEMAR.” Their goal was to push the boundaries of how precisely human spatial hearing can be measured, modelled, and reproduced.
Using a GRAS 45BB-4 KEMAR Head and Torso Simulator fitted with GRAS 40AO ½″ pre-polarized microphones and GRAS 26CS CCP preamplifiers, powered through GRAS 12AL CCP modules, the researchers carried out more than 43 000 directional measurements with 1°×1° spatial resolution. Each microphone was calibrated with a GRAS 42AA piston
Shaping the Future of Sound
We congratulate all participants for their remarkable contributions to acoustic science and innovation.
If you’d like to learn more about the winning projects, stay tuned for our monthly newsletter, where we’ll be featuring their stories in detail. Sign up for expert insights from gras | GRAS Sound and Vibration
The GRAS Innovation Award continues to showcase how precise measurement and human curiosity together drive the sound technologies of tomorrow.
Learn more about the program for 2026: GRAS Innovation Award
