TY - CHAP A1 - Spiertz, Martin A1 - Gnann, Volker A1 - Dietrich, Pascal A1 - Ohm, Jens-Rainer A1 - Vorländer, Michael T1 - Single Sensor Source Separation for Acoustical Machine Diagnostics T2 - Fortschritte der Akustik DAGA ’11 Y1 - 2011 SN - 978-3-939296-02-7 ER - TY - CHAP A1 - Rohlfing, Christian A1 - Spiertz, Martin A1 - Gnann, Volker T1 - Score-Informed Sparseness for Source Separation T2 - Fortschritte der Akustik DAGA ’11 Y1 - 2011 SN - 978-3-939296-02-7 ER - TY - CHAP A1 - Gnann, Volker A1 - Spiertz, Martin T1 - Improving RTISI Phase Estimation With Energy Order and Phase Unwrapping T2 - Proc. of International Conference on Digital Audio Effects DAFx ’10 Y1 - 2010 SN - 978-3-200-01940-9 SP - 367 EP - 371 ER - TY - CHAP A1 - Spiertz, Martin A1 - Gnann, Volker T1 - Beta Divergence for Clustering in Monaural Blind Source Separation T2 - 128th AES Convention Y1 - 2010 SN - 978-0-937803-74-5 ER - TY - CHAP A1 - Craciun, Alexandra A1 - Spiertz, Martin T1 - Adaptive Time Frequency Resolution for Blind Source Separation T2 - Proc. of International Student Conference on Electrical Engineering POSTER ’10 Y1 - 2010 ER - TY - CHAP A1 - Philippen, Bernd A1 - Sottek, Roland A1 - Spiertz, Martin T1 - Blinde Quellentrennung von Fahrzeuginnengeräuschen T2 - Fortschritte der Akustik DAGA ’10 Y1 - 2010 SN - 978-3-9808659-8-2 ER - TY - CHAP A1 - Gnann, Volker A1 - Spiertz, Martin T1 - Transient Detection with Absolute Discrete Group Delay T2 - Proc. of IEEE International Workshop on Intelligent Signal Processing and Communication Systems ISPACS ’09 Y1 - 2009 U6 - https://doi.org/10.1109/ISPACS.2009.5383840 SP - 311 EP - 314 ER - TY - CHAP A1 - Spiertz, Martin A1 - Gnann, Volker T1 - Source-Filter Based Clustering for Monaural Blind Source Separation T2 - Proc. of International Conference on Digital Audio Effects DAFx ’09 Y1 - 2009 ER - TY - CHAP A1 - Bleiholder, Stefan A1 - Spiertz, Martin A1 - Kettler, Frank T1 - Third-Party Listening Test as an Alternative to Conversational Tests in a Complex Automotive Hands-free Scenario – A Critical Consideration T2 - Fortschritte der Akustik DAGA 25 N2 - A comprehensive conversational test (CT) was carried out in a complex in-vehicle hands-free (HFT) environment, using an HFT development board installed in an interactive driving simulator and configured with typical hands- free impairments. A cordless phone was connected to a VoIP network on the other side of the connection. 18 test subjects, expert and naïve participants, evaluated various aspects of conversational quality, including listening quality, listening effort, double talk impairment, echo interference, interactivity and overall quality (as outlined in DAGA 2024). In the same scenario, two artificial head and torso simulators (HATS) were used to play back and record so-called pre-recorded conversations (PRC). The PRC included single talk sequences in both directions, as well as speech parts where both voices interact and are talking at the same time. The binaural recordings at both ends (HFT user, cordless phone user) were then assessed and rated by 32 naïve test subjects in a third-party listening test (TPLT) using the same quality aspects as in the CT. The great advantage of a TPLT compared to a CT is the much lower effort to set up and control the conditions. The auditory results of both test designs are presented, discussed and compared in terms of each quality dimension Y1 - 2025 ER - TY - CHAP A1 - Hochbrückner, Benedikt A1 - Langer, Felix A1 - Winkelmann, Erik A1 - Spiertz, Martin A1 - Zink, Markus A1 - Steiner, Thomas A1 - Krätzschmar, Karsten T1 - Application of a Cluster-Algorithm for Partial Discharge Analysis at DC Voltage Under Practical Conditions Y1 - 2021 U6 - https://doi.org/10.1049/icp.2022.0037 ER - TY - CHAP A1 - Hochbrückner, Benedikt A1 - Spiertz, Martin A1 - Küchler, Andreas A1 - Zink, Markus A1 - Steiner, Thomas A1 - Winkelmann, Erik A1 - Krätzschmar, Karsten T1 - Digital Filtering Methods for Interferences on Partial Discharges Under DC Voltage Y1 - 2020 SN - 978-3-030-31675-4 U6 - https://doi.org/10.1007/978-3-030-31676-1_53 SP - 560 EP - 571 ER - TY - CHAP A1 - Hochbrückner, Benedikt A1 - Küchler, Andreas A1 - Spiertz, Martin A1 - Krätzschmar, Karsten A1 - Zink, Markus T1 - Comparison of Algorithms for Clustering of Partial Discharge Signals under DC Voltage Y1 - 2019 U6 - https://doi.org/10.1109/ICHVEPS47643.2019.9011062 ER -