Elevate Your Hearing

We develop breakthrough audio technologies for your hearables.

Occlear® Technology

Natural Own Voice Through Occlusion Cancellation

Existing headphones isolate the user from the environment, making their voice sound boomy and unnatural to them. This phenomenon is due to the occlusion effect, which attenuates air-conducted sound while amplifying body-conducted sound.

A headphone user who is unhappy with the unnatural sound of their own voice.
A headphone user who enjoys a natural own-voice sound thanks to the Occlear® technology.

Our Occlear® technology eliminates the occlusion effect, allowing hearables users to perceive their voice and environment with natural clarity. Occlear® requires no specialized hardware and can be integrated seamlessly into ANC-ready hearables via a simple firmware update.

Press play and experience a live demo of Occlear®. This real-time recording was captured inside a user’s ear using our portable demonstrator built on the Analog Devices ADAU1787 audio codec.

The environment audio features “Swing Theory” by Freedom Trail Studio, used under CC-BY.

Use case:

Own voice



World-Class Hiss-Free Transparency For Your Hearable

Hearables users often complain about microphone noise or hiss when using transparency mode. It stems from the low-cost, miniature microphones used in today’s hearables. To mitigate this noise, manufacturers often limit the bandwidth of their transparency mode, compromising the clarity of the sound.

Our patented Idle Noise Reduction (INR) technology reduces the noise floor of hearable microphones by 10–15 dB, matching the performance of high-end studio microphones. The INR removes the hiss, allowing hearables manufacturers to achieve world-class transparency with low-cost components. Press play and experience our groundbreaking INR technology for yourself!



Existing spatial audio solutions often struggle with head movement, resulting in a lag that disrupts the immersive experience. They also tend to compromise sound quality by adding reverb.

With imperceptible motion-to-sound latency, our algorithms ensure that the audio keeps pace with your every move. This seamless integration means you experience the world of sound most naturally as you navigate through it. Experience unaltered, high-fidelity audio that runs directly on your hearable device—no need for complex stack adjustments, including Bluetooth and app dependencies.

Elevear’s algorithms are currently implemented on the Analog Devices ADAU1860 audio codec and the Cadence Tensilica HiFi 3z DSP.

If you would like to learn more about our ANC tuning offerings, please don’t hesitate to get in touch.

We Fit Your Product

Revolutionize the user experience across various headphone products

with our customizable technologies.

What We Offer

We provide well-tested technical solutions to critical signal processing challenges for headphones and hearables.

We offer close support, starting from early development stages to the integration of our algorithms into your final product.

Our simple, volume-based licensing model scales well with your products.

Customer Value

The Team

Stefan Liebich
CEO, Products
and Research

Johannes Fabry
Research and
Software Director

Raphael Brandis
Integration Support
and QA Director

Elfed Howells
Commercial Director

Prof. Dr. Peter Jax
Technology Advisor

Prof. Dr. Peter Vary
Technology Advisor

Contact Us

Elevear received the RWTH Innovation Award and the RWTH Spin-off Award.

Elevear is an alumnus of the EXIST, Gründerstipendium NRW, and RWTH Incubation programs.

Elevear is funded by the state of NRW as part of the MID-Assistent/in program.

Elevear is the winner of the IEEE ICASSP 2022 Pitching Competition.