Konrad Kowalczyk

68 papers A 11C 2Misc 12Journal 24Unranked 19

Year	Rank	Type	Title / Venue / Authors
2025	A	`conf`	Clustering-based Hard Negative Sampling for Supervised Contrastive Speaker Verification. INTERSPEECH Piotr Masztalski, Michal Romaniuk, Jakub Zak, Mateusz Matuszewski, Konrad Kowalczyk
2025	J	`jnl`	Clustering-based hard negative sampling for supervised contrastive speaker verification. CoRR Piotr Masztalski, Michal Romaniuk, Jakub Zak, Mateusz Matuszewski, Konrad Kowalczyk
2025	Misc	`conf`	Investigation of Whisper ASR Hallucinations Induced by Non-Speech Audio. ICASSP Mateusz Baranski, Jan Jasinski, Julitta Bartolewska, Stanislaw Kacprzak, Marcin Witkowski, Konrad Kowalczyk
2025	J	`jnl`	Investigation of Whisper ASR Hallucinations Induced by Non-Speech Audio. CoRR Mateusz Baranski, Jan Jasinski, Julitta Bartolewska, Stanislaw Kacprzak, Marcin Witkowski, Konrad Kowalczyk
2025	J	`jnl`	Joint Diarization and Separation Using SepFormer With Non-Autoregressive Attractors. IEEE Signal Process. Lett. Magdalena Rybicka, Konrad Kowalczyk, Thomas Thebaud, Najim Dehak, Jesús Villalba
2024	J	`jnl`	End-to-End Neural Speaker Diarization With Non-Autoregressive Attractors. IEEE ACM Trans. Audio Speech Lang. Process. Magdalena Rybicka, Jesús Villalba, Thomas Thebaud, Najim Dehak, Konrad Kowalczyk
2024	J	`jnl`	HeightCeleb - an enrichment of VoxCeleb dataset with speaker height information. CoRR Stanislaw Kacprzak, Konrad Kowalczyk
2024	—	`conf`	Heightceleb - An Enrichment of Voxceleb Dataset With Speaker Height Information. SLT Stanislaw Kacprzak, Konrad Kowalczyk
2024	J	`jnl`	On Ambisonic Source Separation With Spatially Informed Non-Negative Tensor Factorization. IEEE ACM Trans. Audio Speech Lang. Process. Mateusz Guzik, Konrad Kowalczyk
2024	J	`jnl`	Reverberant Source Separation Using NTF With Delayed Subsources and Spatial Priors. IEEE ACM Trans. Audio Speech Lang. Process. Mieszko Fras, Konrad Kowalczyk
2024	J	`jnl`	Reverberation-Robust Self-Calibration and Synchronization of Distributed Microphone Arrays by Mitigating Heteroscedasticity and Outlier Occurrence in TDoA Measurements. Sensors Szymon Wozniak, Konrad Kowalczyk
2023	A	`conf`	Causal Signal-Based DCCRN with Overlapped-Frame Prediction for Online Speech Enhancement. INTERSPEECH Julitta Bartolewska, Stanislaw Kacprzak, Konrad Kowalczyk
2023	J	`jnl`	Causal Signal-Based DCCRN with Overlapped-Frame Prediction for Online Speech Enhancement. CoRR Julitta Bartolewska, Stanislaw Kacprzak, Konrad Kowalczyk
2023	Misc	`conf`	Convolutive NTF for Ambisonic Source Separation under Reverberant Conditions. ICASSP Mateusz Guzik, Konrad Kowalczyk
2023	A	`conf`	Joint Blind Source Separation and Dereverberation for Automatic Speech Recognition using Delayed-Subsource MNMF with Localization Prior. INTERSPEECH Mieszko Fras, Marcin Witkowski, Konrad Kowalczyk
2023	J	`jnl`	Refining DNN-based Mask Estimation using CGMM-based EM Algorithm for Multi-channel Noise Reduction. CoRR Julitta Bartolewska, Stanislaw Kacprzak, Konrad Kowalczyk
2022	J	`jnl`	An overview of machine learning and other data-based methods for spatial audio capture, processing, and reproduction. EURASIP J. Audio Speech Music. Process. Maximo Cobos, Jens Ahrens, Konrad Kowalczyk, Archontis Politis
2022	Misc	`conf`	Convolutional Weighted Minimum Mean Square Error Filter for Joint Source Separation and Dereverberation. ICASSP Mieszko Fras, Marcin Witkowski, Konrad Kowalczyk
2022	J	`jnl`	Convolutional Weighted Parametric Multichannel Wiener Filter for Reverberant Source Separation. IEEE Signal Process. Lett. Mieszko Fras, Konrad Kowalczyk
2022	A	`conf`	Convolutive Weighted Multichannel Wiener Filter Front-end for Distant Automatic Speech Recognition in Reverberant Multispeaker Scenarios. INTERSPEECH Mieszko Fras, Marcin Witkowski, Konrad Kowalczyk
2022	J	`jnl`	Data-based spatial audio processing. EURASIP J. Audio Speech Music. Process. Maximo Cobos, Jens Ahrens, Konrad Kowalczyk, Archontis Politis
2022	A	`conf`	End-to-End Neural Speaker Diarization with an Iterative Refinement of Non-Autoregressive Attention-based Attractors. INTERSPEECH Magdalena Rybicka, Jesús Villalba, Najim Dehak, Konrad Kowalczyk
2022	A	`conf`	NTF of Spectral and Spatial Features for Tracking and Separation of Moving Sound Sources in Spherical Harmonic Domain. INTERSPEECH Mateusz Guzik, Konrad Kowalczyk
2022	A	`conf`	Refining DNN-based Mask Estimation using CGMM-based EM Algorithm for Multi-channel Noise Reduction. INTERSPEECH Julitta Bartolewska, Stanislaw Kacprzak, Konrad Kowalczyk
2022	Misc	`conf`	Spoken Language Recognition with Cluster-Based Modeling. ICASSP Stanislaw Kacprzak, Magdalena Rybicka, Konrad Kowalczyk
2022	Misc	`conf`	Wishart Localization Prior On Spatial Covariance Matrix In Ambisonic Source Separation Using Non-Negative Tensor Factorization. ICASSP Mateusz Guzik, Konrad Kowalczyk
2021	—	`conf`	Adversarial Domain Adaptation with Paired Examples for Acoustic Scene Classification on Different Recording Devices. EUSIPCO Stanislaw Kacprzak, Konrad Kowalczyk
2021	J	`jnl`	Adversarial Domain Adaptation with Paired Examples for Acoustic Scene Classification on Different Recording Devices. CoRR Stanislaw Kacprzak, Konrad Kowalczyk
2021	A	`conf`	Combating Reverberation in NTF-Based Speech Separation Using a Sub-Source Weighted Multichannel Wiener Filter and Linear Prediction. Interspeech Mieszko Fras, Marcin Witkowski, Konrad Kowalczyk
2021	—	`conf`	Data Diversity for Improving DNN-based Localization of Concurrent Sound Events. EUSIPCO Daniel Krause, Archontis Politis, Konrad Kowalczyk
2021	C	`conf`	Frame-based Maximum a Posteriori Estimation of Second-Order Statistics for Multichannel Speech Enhancement in Presence of Noise. MMSP Julitta Bartolewska, Konrad Kowalczyk
2021	C	`conf`	Incorporation of Localization Information for Sound Source Separation in Spherical Harmonic Domain. MMSP Mateusz Guzik, Mieszko Fras, Konrad Kowalczyk
2021	Misc	`conf`	Maximum a Posteriori Estimator for Convolutive Sound Source Separation with Sub-Source Based NTF Model and the Localization Probabilistic Prior on the Mixing Matrix. ICASSP Mieszko Fras, Konrad Kowalczyk
2021	—	`conf`	Sparse Linear Prediction-based Dereverberation for Signal Enhancement in Distant Speaker Verification. EUSIPCO Marcin Witkowski, Magdalena Rybicka, Konrad Kowalczyk
2021	A	`conf`	Spine2Net: SpineNet with Res2Net and Time-Squeeze-and-Excitation Blocks for Speaker Recognition. Interspeech Magdalena Rybicka, Jesús Villalba, Piotr Zelasko, Najim Dehak, Konrad Kowalczyk
2021	J	`jnl`	Split Bregman Approach to Linear Prediction Based Dereverberation With Enforced Speech Sparsity. IEEE Signal Process. Lett. Marcin Witkowski, Konrad Kowalczyk
2020	—	`conf`	Comparison of Convolution Types in CNN-based Feature Extraction for Sound Source Localization. EUSIPCO Daniel Krause, Archontis Politis, Konrad Kowalczyk
2020	—	`conf`	Distributed Multiarray Noise Reduction With Online Estimation Of Masks And Spatial Filters. SAM Julitta Bartolewska, Konrad Kowalczyk
2020	Misc	`conf`	Exploiting Rays in Blind Localization of Distributed Sensor Arrays. ICASSP Szymon Wozniak, Konrad Kowalczyk
2020	J	`jnl`	Exploiting Rays in Blind Localization of Distributed Sensor Arrays. CoRR Szymon Wozniak, Konrad Kowalczyk
2020	—	`conf`	Feature Overview for Joint Modeling of Sound Event Detection and Localization Using a Microphone Array. EUSIPCO Daniel Krause, Archontis Politis, Konrad Kowalczyk
2020	A	`conf`	On Parameter Adaptation in Softmax-Based Cross-Entropy Loss for Improved Convergence Speed and Accuracy in DNN-Based Speaker Recognition. INTERSPEECH Magdalena Rybicka, Konrad Kowalczyk
2019	—	`conf`	Multichannel Wiener Filter with Early Reflection Raking for Automatic Speech Recognition in Presence of Reverberation. SPA Konrad Kowalczyk
2019	J	`jnl`	Passive Joint Localization and Synchronization of Distributed Microphone Arrays. IEEE Signal Process. Lett. Szymon Wozniak, Konrad Kowalczyk
2019	—	`conf`	Self-Localization of Distributed Microphone Arrays Using Directional Statistics with DoA Estimation Reliability. EUSIPCO Szymon Wozniak, Konrad Kowalczyk, Maximo Cobos
2019	—	`conf`	Speaker Recognition from Distance Using X-Vectors with Reverberation-Robust Features. SPA Marcin Witkowski, Magdalena Rybicka, Konrad Kowalczyk
2017	A	`conf`	Audio Replay Attack Detection Using High-Frequency Features. INTERSPEECH Marcin Witkowski, Stanislaw Kacprzak, Piotr Zelasko, Konrad Kowalczyk, Jakub Galka
2016	—	`conf`	Embedded system for acquisition and enhancement of audio signals. SPA Konrad Kowalczyk, Szymon Wozniak, Tomasz Chyrowicz, Roman Rumian
2015	J	`jnl`	Binaural Reproduction of Finite Difference Simulations Using Spherical Array Processing. IEEE ACM Trans. Audio Speech Lang. Process. Jonathan Sheaffer, Maarten van Walstijn, Boaz Rafaely, Konrad Kowalczyk
2015	J	`jnl`	Parametric Spatial Sound Processing: A flexible and efficient solution to sound scene acquisition, modification, and reproduction. IEEE Signal Process. Mag. Konrad Kowalczyk, Oliver Thiergart, Maja Taseska, Giovanni Del Galdo, Ville Pulkki, Emanuël A. P. Habets
2015	Misc	`conf`	Residual noise control using a parametric multichannel Wiener filter. ICASSP Sebastian Braun, Konrad Kowalczyk, Emanuël A. P. Habets
2014	—	`conf`	An acoustical zoom based on informed spatial filtering. IWAENC Oliver Thiergart, Konrad Kowalczyk, Emanuël A. P. Habets
2014	J	`jnl`	Estimation of Acoustic Reflection Coefficients Through Pseudospectrum Matching. IEEE ACM Trans. Audio Speech Lang. Process. Dejan Markovic, Konrad Kowalczyk, Fabio Antonacci, Christian Hofmann, Augusto Sarti, Walter Kellermann
2014	Misc	`conf`	Extended Kalman filter with probabilistic data association for multiple non-concurrent speaker localization in reverberant environments. ICASSP Soumitro Chakrabarty, Konrad Kowalczyk, Maja Taseska, Emanuël A. P. Habets
2014	—	`conf`	Spatial perception of virtual X-Y recordings. IWAENC Konrad Kowalczyk, Alexandra Craciun, Christian Dachmann, Emanuël A. P. Habets
2013	J	`jnl`	Blind System Identification Using Sparse Learning for TDOA Estimation of Room Reflections. IEEE Signal Process. Lett. Konrad Kowalczyk, Emanuël A. P. Habets, Walter Kellermann, Patrick A. Naylor
2013	—	`conf`	Generating virtual microphone signals in noisy environments. EUSIPCO Konrad Kowalczyk, Alexandra Craciun, Emanuël A. P. Habets
2013	—	`conf`	Sound acquisition in noisy and reverberant environments using virtual microphones. WASPAA Konrad Kowalczyk, Oliver Thiergart, Alexandra Craciun, Emanuël A. P. Habets
2012	—	`conf`	Reflection Coefficient Estimation by Pseudospectrum Matching. IWAENC Dejan Markovic, Christian Hofmann, Fabio Antonacci, Konrad Kowalczyk, Augusto Sarti, Walter Kellermann
2011	J	`jnl`	A Phase Grating Approach to Modeling Surface Diffusion in FDTD Room Acoustics Simulations. IEEE Trans. Speech Audio Process. Konrad Kowalczyk, Maarten van Walstijn, Damian T. Murphy
2011	—	`conf`	Comparison of subspace-based and steered beamformer-based reflection localization methods. EUSIPCO Edwin Mabande, Haohai Sun, Konrad Kowalczyk, Walter Kellermann
2011	Misc	`conf`	Joint DOA and TDOA estimation for 3D localization of reflective surfaces using eigenbeam MVDR and spherical microphone arrays. ICASSP Haohai Sun, Edwin Mabande, Konrad Kowalczyk, Walter Kellermann
2011	Misc	`conf`	On 2D localization of reflectors using robust beamforming techniques. ICASSP Edwin Mabande, Haohai Sun, Konrad Kowalczyk, Walter Kellermann
2011	J	`jnl`	Room Acoustics Simulation Using 3-D Compact Explicit FDTD Schemes. IEEE Trans. Speech Audio Process. Konrad Kowalczyk, Maarten van Walstijn
2011	—	`conf`	The SCENIC Project: Environment-aware Sound Sensing and Rendering. FET 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, Patrick A. Naylor, Maurizio Omologo, Rudolf Rabenstein, Augusto Sarti, Piergiorgio Svaizer, Mark R. P. Thomas
2010	Misc	`conf`	A comparison of nonstaggered compact FDTD schemes for the 3D wave equation. ICASSP Konrad Kowalczyk, Maarten van Walstijn
2010	J	`jnl`	Wideband and Isotropic Room Acoustics Simulation Using 2-D Interpolated FDTD Schemes. IEEE Trans. Speech Audio Process. Konrad Kowalczyk, Maarten van Walstijn
2007	—	`conf`	On-Line Simulation of 2D Resonators with Reduced Dispersion Error using Compact Implicit Finite Difference Methods. ICASSP (1) Konrad Kowalczyk, Maarten van Walstijn