Frontal picture of Kren Monrad Nørgaard smiling.

Acoustics research at Interacoustics

With an ambition to make a difference for people, Kren Monrad Nørgaard endeavors to build upon existing knowledge with enlightening research.

Early into his career, Kren Monrad Nørgaard, an Industrial Ph.D. graduate of Acoustics at the Technical University of Denmark and Principal Acoustics Engineer at Interacoustics, has already published several papers with respected researchers within his field.

His Ph.D. project focused on improving the accuracy of Wideband Tympanometry (WBT) and Wideband Absorbance, which mainly characterize the conductive part of the auditory system. However, his research also showed that this improved accuracy can dramatically improve the reproducibility and accuracy of otoacoustic-emission (OAE) measurements as well.

- I really enjoy my research. My interest for developing better ear probes stems from my time as a master’s student. Back then, I was lucky to collaborate with Interacoustics in connection with my thesis, where I simulated the acoustics of ear probes used for otoacoustic emissions and other types of measurements.

Investigating calibration methods

After the conclusion of his master's studies, Kren was hired by Interacoustics and started off slow and steadily. His days consisted of reading scientific articles, looking at new calibration methods, filing patents and taking part in many in‑house projects.

- I spent most of my time performing measurements and figuring out the performance criteria ear probes should satisfy to produce more accurate measurement results for otoacoustic emissions, tympanometry and so forth. I also spent time on investigating underlying calibration methods and quickly realized that state-of-the-art methods weren’t entirely accurate. Not satisfactory to say the least, and this discovery inspired my Ph.D. project.

Enriching the scientific community

- Interacoustics’ solutions are heavily based on research. I therefore find it important that our methods are openly published and are endorsed by the scientific community.

Kren, who has completed his Ph.D., reflects on what his future holds.

- Interacoustics is a knowledge-based company where the individual employee’s wishes for future career development are always considered. In my new role as Principal Acoustics Engineer, I will build upon my Ph.D. in collaboration with the Interacoustics Research Unit (IRU) and with external collaborators.

Related resources

About the authors

Shane Seiger-Eatwell is a Master of Linguistics and Communication (cand.ling.merc.), having graduated from Aarhus University in 2018. He joined Interacoustics in January 2019 as a Marketing Communications Specialist.

Kren Monrad Nørgaard holds an Industrial Ph.D. in Acoustics from the Technical University of Denmark, following his graduation from the University of Southern Denmark in 2013 as a MSc Eng, Acoustics and Signal Processing. Despite his young age, Kren already has several years of experience at Interacoustics, firstly as an Acoustics Engineer, then as an Industrial Ph.D. Student followed by his current role as Principal Acoustics Engineer. Kren also boasts several publications in connection with his acoustics research.
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