Tobias Wolff

Tobias Wolff
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Main area of research
Speech enhancement

Tobias Wolff studied Electrical Engineering and Communications at Technische Universität Darmstadt (TUD), Germany. He received the Dipl.-Ing. degree in 2006 and the Dr.-Ing. degree in 2010 both from the Signal Processing Group at TUD. From May 2005 to December 2005 and from June 2007 to September 2007 he was a visiting researcher at the Image Processing Laboratory at University of California Santa Barbara (USCB). Since April 2009 he is a senior research engineer in the acoustic Speech Enhancement Department at Nuance Communications Deutschland GmbH. His main interests are algorithms for multichannel speech enhancement in noisy and reverberant environments. Tobias contributes as a supervisor in the Maire Curie International Training Network "DREAMS" to improve speech recognition performance in the presence of room reverberation.

Selected articles

A morphological approach to single-channel wind-noise suppression

Today, a variety of technical devices deploy spoken language processing technology. In many practical use cases, not only stationary ambient noises but non-stationary interferences, such

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A practical beamformer-postfilter system for adaptive speech enhancement in non-stationary noise environments

In this contribution we present an adaptive beamformer-postfilter system which can be used to suppress non-stationary noises. The emphasis lies on the spatial filtering property

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Adaptive receive side equalization for improved intelligibility in automotive hands-free systems

The intelligibility of the received audio signal in automotive hands-free systems typically suffers from limited bandwidth as well as from being rendered in noisy environment.

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Entwurf und analyse von beamformer-nachfilter-systemen

PhD Thesis

A generalized view on microphone array postfilters

In this paper a generic transfer function for microphone array postfilters is derived and discussed. This function comprises a matrix which can be designed freely

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