Stefan Liebich

Title: Innovations by Inventor Stefan Liebich

Introduction

Stefan Liebich is a notable inventor based in Aachen, Germany. He has made significant contributions to the field of audio technology, particularly in the development of methods and devices for enhancing sound quality in headphones and hearing aids. With a total of three patents to his name, Liebich's work focuses on actively suppressing unwanted audio effects.

Latest Patents

One of his latest patents is a method, device, headphones, and computer program for actively suppressing the occlusion effect during the playback of audio signals. This innovative method captures external sound signals using at least one outer microphone and a voice signal through an additional microphone. The dry component of the captured voice signal is estimated, allowing for the extraction of a voice component from the outer sound. This extracted voice component is then output through the headphones or hearing aid, enhancing the listening experience.

Another significant patent by Liebich involves a method and device for actively suppressing interfering noise. In this invention, a transfer function for a secondary path between a loudspeaker and an error microphone is measured. Based on this measurement, a transfer function for a primary path is estimated, leading to the determination of filter coefficients for generating a cancellation signal. This technology aims to improve audio clarity by reducing background noise.

Career Highlights

Stefan Liebich has worked at prestigious institutions, including the Rheinisch-Westfälische Technische Hochschule Aachen. His academic background and research have played a crucial role in his innovative endeavors. His work has not only advanced audio technology but has also contributed to the academic community through research and development.

Collaborations

Throughout his career, Liebich has collaborated with notable colleagues, including Johannes Fabry and Peter Jax. These collaborations have fostered an environment of innovation and have led to the successful development of his patented technologies.

Conclusion

Stefan Liebich's contributions to audio technology through his patents demonstrate his commitment to innovation and excellence. His work in suppressing audio effects has the potential to significantly enhance the listening experience for users of headphones and hearing aids.