On-Line Simulation of 2D Resonators with Reduced Dispersion Error using Compact Implicit Finite Difference Methods. - Konrad Kowalczyk; Maarten van Walstijn (ICASSP (1), 2007)

A comparison of nonstaggered compact FDTD schemes for the 3D wave equation. - Konrad Kowalczyk; Maarten van Walstijn (ICASSP, 2010)

Wideband and Isotropic Room Acoustics Simulation Using 2-D Interpolated FDTD Schemes. - Konrad Kowalczyk; Maarten van Walstijn (IEEE Trans. Speech Audio Process., 2010)

Comparison of subspace-based and steered beamformer-based reflection localization methods. - Edwin Mabande; Haohai Sun; Konrad Kowalczyk; Walter Kellermann (EUSIPCO, 2011)

On 2D localization of reflectors using robust beamforming techniques. - Edwin Mabande; Haohai Sun; Konrad Kowalczyk; Walter Kellermann (ICASSP, 2011)

Joint DOA and TDOA estimation for 3D localization of reflective surfaces using eigenbeam MVDR and spherical microphone arrays. - Haohai Sun; Edwin Mabande; Konrad Kowalczyk; Walter Kellermann (ICASSP, 2011)

The SCENIC Project: Environment-aware Sound Sensing and Rendering. - Paolo Annibale; Fabio Antonacci; Paolo Bestagini; Alessio Brutti; Antonio Canclini; Luca Cristoforetti; Emanuël Anco Peter Habets; Walter Kellermann; Konrad Kowalczyk; Anthony Lombard; Edwin Mabande; Dejan Markovic; et al. (FET, 2011)

Room Acoustics Simulation Using 3-D Compact Explicit FDTD Schemes. - Konrad Kowalczyk; Maarten van Walstijn (IEEE Trans. Speech Audio Process., 2011)

A Phase Grating Approach to Modeling Surface Diffusion in FDTD Room Acoustics Simulations. - Konrad Kowalczyk; Maarten van Walstijn; Damian T. Murphy (IEEE Trans. Speech Audio Process., 2011)

Reflection Coefficient Estimation by Pseudospectrum Matching. - Dejan Markovic; Christian Hofmann 001; Fabio Antonacci; Konrad Kowalczyk; Augusto Sarti; Walter Kellermann (IWAENC, 2012)

Generating virtual microphone signals in noisy environments. - Konrad Kowalczyk; Alexandra Craciun; Emanuël A. P. Habets (EUSIPCO, 2013)

Sound acquisition in noisy and reverberant environments using virtual microphones. - Konrad Kowalczyk; Oliver Thiergart; Alexandra Craciun; Emanuël A. P. Habets (WASPAA, 2013)

Blind System Identification Using Sparse Learning for TDOA Estimation of Room Reflections. - Konrad Kowalczyk; Emanuël A. P. Habets; Walter Kellermann; Patrick A. Naylor (IEEE Signal Process. Lett., 2013)

Extended Kalman filter with probabilistic data association for multiple non-concurrent speaker localization in reverberant environments. - Soumitro Chakrabarty; Konrad Kowalczyk; Maja Taseska; Emanuël A. P. Habets (ICASSP, 2014)

Spatial perception of virtual X-Y recordings. - Konrad Kowalczyk; Alexandra Craciun; Christian Dachmann; Emanuël A. P. Habets (IWAENC, 2014)

An acoustical zoom based on informed spatial filtering. - Oliver Thiergart; Konrad Kowalczyk; Emanuël A. P. Habets (IWAENC, 2014)

Estimation of Acoustic Reflection Coefficients Through Pseudospectrum Matching. - Dejan Markovic; Konrad Kowalczyk; Fabio Antonacci; Christian Hofmann 001; Augusto Sarti; Walter Kellermann (IEEE ACM Trans. Audio Speech Lang. Process., 2014)

Residual noise control using a parametric multichannel Wiener filter. - Sebastian Braun; Konrad Kowalczyk; Emanuël A. P. Habets (ICASSP, 2015)

Parametric Spatial Sound Processing: A flexible and efficient solution to sound scene acquisition, modification, and reproduction. - Konrad Kowalczyk; Oliver Thiergart; Maja Taseska; Giovanni Del Galdo; Ville Pulkki; Emanuël A. P. Habets (IEEE Signal Process. Mag., 2015)

Binaural Reproduction of Finite Difference Simulations Using Spherical Array Processing. - Jonathan Sheaffer; Maarten van Walstijn; Boaz Rafaely; Konrad Kowalczyk (IEEE ACM Trans. Audio Speech Lang. Process., 2015)

Embedded system for acquisition and enhancement of audio signals. - Konrad Kowalczyk; Szymon Wozniak; Tomasz Chyrowicz; Roman Rumian (SPA, 2016)

Audio Replay Attack Detection Using High-Frequency Features. - Marcin Witkowski; Stanislaw Kacprzak; Piotr Zelasko; Konrad Kowalczyk; Jakub Galka (INTERSPEECH, 2017)

Self-Localization of Distributed Microphone Arrays Using Directional Statistics with DoA Estimation Reliability. - Szymon Wozniak; Konrad Kowalczyk; Maximo Cobos (EUSIPCO, 2019)

Multichannel Wiener Filter with Early Reflection Raking for Automatic Speech Recognition in Presence of Reverberation. - Konrad Kowalczyk (SPA, 2019)

Speaker Recognition from Distance Using X-Vectors with Reverberation-Robust Features. - Marcin Witkowski; Magdalena Rybicka; Konrad Kowalczyk (SPA, 2019)

Passive Joint Localization and Synchronization of Distributed Microphone Arrays. - Szymon Wozniak; Konrad Kowalczyk (IEEE Signal Process. Lett., 2019)

Feature Overview for Joint Modeling of Sound Event Detection and Localization Using a Microphone Array. - Daniel Krause 001; Archontis Politis; Konrad Kowalczyk (EUSIPCO, 2020)

Comparison of Convolution Types in CNN-based Feature Extraction for Sound Source Localization. - Daniel Krause 001; Archontis Politis; Konrad Kowalczyk (EUSIPCO, 2020)

Exploiting Rays in Blind Localization of Distributed Sensor Arrays. - Szymon Wozniak; Konrad Kowalczyk (ICASSP, 2020)

Distributed Multiarray Noise Reduction With Online Estimation Of Masks And Spatial Filters. - Julitta Bartolewska; Konrad Kowalczyk (SAM, 2020)

On Parameter Adaptation in Softmax-Based Cross-Entropy Loss for Improved Convergence Speed and Accuracy in DNN-Based Speaker Recognition. - Magdalena Rybicka; Konrad Kowalczyk (INTERSPEECH, 2020)

Adversarial Domain Adaptation with Paired Examples for Acoustic Scene Classification on Different Recording Devices. - Stanislaw Kacprzak; Konrad Kowalczyk (EUSIPCO, 2021)

Data Diversity for Improving DNN-based Localization of Concurrent Sound Events. - Daniel Krause 001; Archontis Politis; Konrad Kowalczyk (EUSIPCO, 2021)

Sparse Linear Prediction-based Dereverberation for Signal Enhancement in Distant Speaker Verification. - Marcin Witkowski; Magdalena Rybicka; Konrad Kowalczyk (EUSIPCO, 2021)

Maximum a Posteriori Estimator for Convolutive Sound Source Separation with Sub-Source Based NTF Model and the Localization Probabilistic Prior on the Mixing Matrix. - Mieszko Fras; Konrad Kowalczyk (ICASSP, 2021)

Combating Reverberation in NTF-Based Speech Separation Using a Sub-Source Weighted Multichannel Wiener Filter and Linear Prediction. - Mieszko Fras; Marcin Witkowski; Konrad Kowalczyk (Interspeech, 2021)

Spine2Net: SpineNet with Res2Net and Time-Squeeze-and-Excitation Blocks for Speaker Recognition. - Magdalena Rybicka; Jesús Villalba 001; Piotr Zelasko; Najim Dehak; Konrad Kowalczyk (Interspeech, 2021)

Frame-based Maximum a Posteriori Estimation of Second-Order Statistics for Multichannel Speech Enhancement in Presence of Noise. - Julitta Bartolewska; Konrad Kowalczyk (MMSP, 2021)

Incorporation of Localization Information for Sound Source Separation in Spherical Harmonic Domain. - Mateusz Guzik; Mieszko Fras; Konrad Kowalczyk (MMSP, 2021)

Split Bregman Approach to Linear Prediction Based Dereverberation With Enforced Speech Sparsity. - Marcin Witkowski; Konrad Kowalczyk (IEEE Signal Process. Lett., 2021)

Convolutional Weighted Minimum Mean Square Error Filter for Joint Source Separation and Dereverberation. - Mieszko Fras; Marcin Witkowski; Konrad Kowalczyk (ICASSP, 2022)

Wishart Localization Prior On Spatial Covariance Matrix In Ambisonic Source Separation Using Non-Negative Tensor Factorization. - Mateusz Guzik; Konrad Kowalczyk (ICASSP, 2022)

Spoken Language Recognition with Cluster-Based Modeling. - Stanislaw Kacprzak; Magdalena Rybicka; Konrad Kowalczyk (ICASSP, 2022)

Refining DNN-based Mask Estimation using CGMM-based EM Algorithm for Multi-channel Noise Reduction. - Julitta Bartolewska; Stanislaw Kacprzak; Konrad Kowalczyk (INTERSPEECH, 2022)

Convolutive Weighted Multichannel Wiener Filter Front-end for Distant Automatic Speech Recognition in Reverberant Multispeaker Scenarios. - Mieszko Fras; Marcin Witkowski; Konrad Kowalczyk (INTERSPEECH, 2022)

NTF of Spectral and Spatial Features for Tracking and Separation of Moving Sound Sources in Spherical Harmonic Domain. - Mateusz Guzik; Konrad Kowalczyk (INTERSPEECH, 2022)

End-to-End Neural Speaker Diarization with an Iterative Refinement of Non-Autoregressive Attention-based Attractors. - Magdalena Rybicka; Jesús Villalba 001; Najim Dehak; Konrad Kowalczyk (INTERSPEECH, 2022)

An overview of machine learning and other data-based methods for spatial audio capture, processing, and reproduction. - Maximo Cobos; Jens Ahrens; Konrad Kowalczyk; Archontis Politis (EURASIP J. Audio Speech Music. Process., 2022)

Data-based spatial audio processing. - Maximo Cobos; Jens Ahrens; Konrad Kowalczyk; Archontis Politis (EURASIP J. Audio Speech Music. Process., 2022)

Convolutional Weighted Parametric Multichannel Wiener Filter for Reverberant Source Separation. - Mieszko Fras; Konrad Kowalczyk (IEEE Signal Process. Lett., 2022)

Convolutive NTF for Ambisonic Source Separation under Reverberant Conditions. - Mateusz Guzik; Konrad Kowalczyk (ICASSP, 2023)

Causal Signal-Based DCCRN with Overlapped-Frame Prediction for Online Speech Enhancement. - Julitta Bartolewska; Stanislaw Kacprzak; Konrad Kowalczyk (INTERSPEECH, 2023)

Joint Blind Source Separation and Dereverberation for Automatic Speech Recognition using Delayed-Subsource MNMF with Localization Prior. - Mieszko Fras; Marcin Witkowski; Konrad Kowalczyk (INTERSPEECH, 2023)

Heightceleb - An Enrichment of Voxceleb Dataset With Speaker Height Information. - Stanislaw Kacprzak; Konrad Kowalczyk (SLT, 2024)

Reverberation-Robust Self-Calibration and Synchronization of Distributed Microphone Arrays by Mitigating Heteroscedasticity and Outlier Occurrence in TDoA Measurements. - Szymon Wozniak; Konrad Kowalczyk (Sensors, 2024)

Reverberant Source Separation Using NTF With Delayed Subsources and Spatial Priors. - Mieszko Fras; Konrad Kowalczyk (IEEE ACM Trans. Audio Speech Lang. Process., 2024)

On Ambisonic Source Separation With Spatially Informed Non-Negative Tensor Factorization. - Mateusz Guzik; Konrad Kowalczyk (IEEE ACM Trans. Audio Speech Lang. Process., 2024)

End-to-End Neural Speaker Diarization With Non-Autoregressive Attractors. - Magdalena Rybicka; Jesús Villalba 001; Thomas Thebaud; Najim Dehak; Konrad Kowalczyk (IEEE ACM Trans. Audio Speech Lang. Process., 2024)

Investigation of Whisper ASR Hallucinations Induced by Non-Speech Audio. - Mateusz Baranski; Jan Jasinski; Julitta Bartolewska; Stanislaw Kacprzak; Marcin Witkowski; Konrad Kowalczyk (ICASSP, 2025)

Joint Diarization and Separation Using SepFormer With Non-Autoregressive Attractors. - Magdalena Rybicka; Konrad Kowalczyk; Thomas Thebaud; Najim Dehak; Jesús Villalba 001 (IEEE Signal Process. Lett., 2025)

Clustering-based hard negative sampling for supervised contrastive speaker verification. - Piotr Masztalski; Michal Romaniuk; Jakub Zak; Mateusz Matuszewski; Konrad Kowalczyk (CoRR, 2025)