105 citations · 160 across the 9 of their papers we have counts for
4 papers · 1 filter
Robust coherence-based spectral enhancement for distant speech recognition
Hendrik Barfuss, Christian Huemmer, Andreas Schwarz +1
In this contribution to the 3rd CHiME Speech Separation and Recognition Challenge (CHiME-3) we extend the acoustic front-end of the CHiME-3 baseline speech recognition system by a…
A model for the temporal evolution of the spatial coherence in decaying reverberant sound fields
Sam Nees, Andreas Schwarz, Walter Kellermann
Reverberant sound fields are often modeled as isotropic. However, it has been observed that spatial properties change during the decay of the sound field energy, due to non-isotrop…
Binaural coherent-to-diffuse-ratio estimation for dereverberation using an ITD model
Chengshi Zheng, Andreas Schwarz, Walter Kellermann +1
Most previously proposed dual-channel coherent-to-diffuse-ratio (CDR) estimators are based on a free-field model. When used for binaural signals, e.g., for dereverberation in binau…
Coherent-to-Diffuse Power Ratio Estimation for Dereverberation
Andreas Schwarz, Walter Kellermann
The estimation of the time- and frequency-dependent coherent-to-diffuse power ratio (CDR) from the measured spatial coherence between two omnidirectional microphones is investigate…