TY - GEN A1 - Ackermann, David A1 - Ilse, Michael A1 - Grigoriev, Dmitry A1 - Lepa, Steffen A1 - Pelzer, Sönke A1 - Vorländer, Michael A1 - Weinzierl, Stefan T1 - A Ground Truth on Room Acoustical Analysis and Perception (GRAP) N2 - A database of 35 virtual room models was created that can serve as a ground truth for the future development of room acoustical parameters beyond ISO 3382-1. Some of the room models are based on existing performance venues, however without yielding a perfect match of measured and simulated acoustical parameters. Others are artificial designs which were made to systematically cover a wide variety of room acoustical properties. Each of the 35 acoustical environments included in the GRAP database consists of three components: (1) the room model which specifies source and receiver positions and the acoustic properties of the surfaces, (2) the simulated monaural and binaural impulse responses, as well as (3) the item and factor scores, based on a listening test using the Room Acoustic Quality Inventory (RAQI). KW - room acoustical analysis KW - virtual acoustic KW - room acoustic simulation Y1 - 2018 U6 - https://doi.org/10.14279/depositonce-7003.4 N1 - DFG, FOR 1557, Simulation and Evaluation of Acoustical Environments (SEACEN) PB - TU Berlin CY - Berlin ER - TY - JOUR A1 - Brinkmann, Fabian A1 - Aspöck, Lukas A1 - Ackermann, David A1 - Opdam, Rob A1 - Vorländer, Michael A1 - Weinzierl, Stefan T1 - A benchmark for room acoustical simulation. Concept and database JF - Applied Acoustics Y1 - 2021 U6 - https://doi.org/10.1016/j.apacoust.2020.107867 SN - 0003-682X VL - 176 PB - Elsevier ER - TY - GEN A1 - Aspöck, Lukas A1 - Brinkmann, Fabian A1 - Ackermann, David A1 - Weinzierl, Stefan A1 - Vorländer, Michael T1 - BRAS – A Benchmark for Room Acoustical Simulation KW - Room acoustic simulation KW - virtual acoustic Y1 - 2019 UR - https://doi.org/10.1016/j.apacoust.2020.107867 U6 - https://doi.org/10.14279/depositonce-6726.3 PB - TU Berlin CY - Berlin ER - TY - JOUR A1 - Brinkmann, Fabian A1 - Aspöck, Lukas A1 - Ackermann, David A1 - Lepa, Steffen A1 - Vorländer, Michael A1 - Weinzierl, Stefan T1 - A Round Robin on Room Acoustical Simulation and Auralization JF - Journal of the Acoustical Society of America N2 - A round robin was conducted to evaluate the state of the art of room acoustic modeling software both in the physical and perceptual realms. The test was based on six acoustic scenes highlighting specific acoustic phenomena and for three complex, “real-world” spatial environments. The results demonstrate that most present simulation algorithms generate obvious model errors once the assumptions of geometrical acoustics are no longer met. As a consequence, they are neither able to provide a reliable pattern of early reflections nor do they provide a reliable prediction of room acoustic parameters outside a medium frequency range. In the perceptual domain, the algorithms under test could generate mostly plausible but not authentic auralizations, i.e., the difference between simulated and measured impulse responses of the same scene was always clearly audible. Most relevant for this perceptual difference are deviations in tone color and source position between measurement and simulation, which to a large extent can be traced back to the simplified use of random incidence absorption and scattering coefficients and shortcomings in the simulation of early reflections due to the missing or insufficient modeling of diffraction. Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-59034 SN - 0001-4966 VL - 145 IS - 4 SP - 2746 EP - 2760 PB - Acoustical Society of America ER - TY - GEN A1 - Weinzierl, Stefan A1 - Vorländer, Michael A1 - Ackermann, David A1 - Behler, Gottfried A1 - Brinkmann, Fabian A1 - von Coler, Henrik A1 - Detzner, Erik A1 - Krämer, Johannes A1 - Lindau, Alexander A1 - Pollow, Martin A1 - Schulz, Frank A1 - Shabtai, Noam R. T1 - A Database of Anechoic Microphone Array Measurements of Musical Instruments KW - directivities KW - musical instruments KW - spectral audio features Y1 - 2024 U6 - https://doi.org/10.14279/depositonce-19858 N1 - Forschungsgruppe | FOR 1557 - SEACEN VL - Version 3 PB - Technische Universität Berlin, RWTH Aachen University ER - TY - CHAP A1 - Aspöck, Lukas A1 - Brinkmann, Fabian A1 - Ackermann, David A1 - Weinzierl, Stefan A1 - Vorländer, Michael ED - Seeber, Bernhard T1 - Eine Datenbank zur Validierung von akustischen Simulationen T2 - Fortschritte der Akustik – DAGA 2018: 44. Jahrestagung für Akustik, 19.-22. März 2018 in München Y1 - 2018 SN - 978-3-939296-13-3 SP - 1337 EP - 1337 PB - Deutsche Gesellschaft für Akustik e.V. CY - Berlin ER -