1 code implementation • 4 Jun 2023 • Thomas Haubner, Andreas Brendel, Walter Kellermann
To obtain precise echo estimates, the parameters of the echo canceler, i. e., the filter coefficients, need to be estimated quickly and precisely from the observed loudspeaker and microphone signals.
no code implementations • 14 Mar 2023 • Annika Briegleb, Thomas Haubner, Vasileios Belagiannis, Walter Kellermann
Beamforming for multichannel speech enhancement relies on the estimation of spatial characteristics of the acoustic scene.
no code implementations • 28 Jul 2022 • Andreas Brendel, Thomas Haubner, Walter Kellermann
Most of the currently used algorithms belong to one of the following three families: Frequency Domain ICA (FD-ICA), Independent Vector Analysis (IVA), and TRIple-N Independent component analysis for CONvolutive mixtures (TRINICON).
1 code implementation • 13 May 2022 • Thomas Haubner, Zbyněk Koldovský, Walter Kellermann
We describe a joint acoustic echo cancellation (AEC) and blind source extraction (BSE) approach for multi-microphone acoustic frontends.
no code implementations • 3 Mar 2022 • Thomas Haubner, Walter Kellermann
We introduce a novel method for controlling the functionality of a hands-free speech communication device which comprises a model-based acoustic echo canceller (AEC), minimum variance distortionless response (MVDR) beamformer (BF) and spectral postfilter (PF).
no code implementations • 2 Jun 2021 • Thomas Haubner, Andreas Brendel, Walter Kellermann
We present a novel end-to-end deep learning-based adaptation control algorithm for frequency-domain adaptive system identification.
no code implementations • 7 May 2021 • Thomas Haubner, Andreas Brendel, Walter Kellermann
The proposed method assumes that the variability of AIRs of an acoustic scene is confined to a low-dimensional manifold which is embedded in a high-dimensional space of possible AIR estimates.
no code implementations • 16 Dec 2020 • Thomas Haubner, Mhd. Modar Halimeh, Andreas Brendel, Walter Kellermann
We introduce a synergistic approach to double-talk robust acoustic echo cancellation combining adaptive Kalman filtering with a deep neural network-based postfilter.