@inproceedings{SteffensWeinzierl2023, author = {Steffens, Jochen and Weinzierl, Stefan}, title = {Noise for dinner - Towards a comprehensive statistical model of the acoustical and overall quality of restaurants}, series = {Proceedings of the 10th Convention of the European Acoustics Association Forum Acusticum 2023, September 11 - 15, 2023,Torino, Italy}, booktitle = {Proceedings of the 10th Convention of the European Acoustics Association Forum Acusticum 2023, September 11 - 15, 2023,Torino, Italy}, editor = {Astolfi, Arianna and Asdrubali, Francesco and Shtrepi, Louena}, publisher = {European Acoustics Association}, address = {Turin, Italy}, isbn = {978-88-88942-67-4}, issn = {2221-3767}, doi = {10.61782/fa.2023.0483}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-47908}, pages = {3325 -- 3327}, year = {2023}, abstract = {Studies on noise in restaurants have shown a multitude of potential negative effects, for example related to mood, overall satisfaction, intended revisit, the ability to communicate and the actual behaviour in the room. In this paper, we investigated the complex interplay between room acoustics, soundscape evaluation, non-acoustical aspects of a restaurant visit and overall restaurant quality. Based on acoustical measurements and reports from 142 persons visiting 12 restaurants in Berlin, we propose a structural equation model including both acoustical and non- acoustical factors and yielding a good overall fit. The model, for instance, suggests that the A-weighted sound level negatively impacts the assessment of overall restaurant quality, while the effect of soundscape pleasantness on overall restaurant quality is mediated by the restaurant's perceived atmosphere. Moreover, the reverberation time was found to be effective predominantly through its effect on sound strength, which leads patrons to increasingly raise their speech level to ensure intelligibility. These results thus emphasize the need to design actively the restaurant's acoustical atmosphere beyond pure loudness reduction which involves a specific trade-off between comfort and liveliness, depending on the desired character of the place.}, subject = {European Acoustics Association}, language = {en} } @article{VersuemerSteffensWeinzierl2023, author = {Vers{\"u}mer, Siegbert and Steffens, Jochen and Weinzierl, Stefan}, title = {Day-to-day loudness assessments of indoor soundscapes: Exploring the impact of loudness indicators, person, and situation}, series = {The Journal of the Acoustical Society of America}, volume = {153}, journal = {The Journal of the Acoustical Society of America}, number = {5}, publisher = {Acoustical Society of America (ASA)}, issn = {0001-4966}, doi = {10.1121/10.0019413}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-46127}, pages = {2956 -- 2972}, year = {2023}, abstract = {This study investigates loudness perception in real-world contexts using predictors related to the sound, situation, or person. In the study, 105 participants recorded 6594 sound environments in their homes, which were then evaluated based on the Experience Sampling Method. Hierarchical linear regressions using a loudness level based on ISO 532-1 allowed for obtaining the best model fits for predicting perceived loudness and explaining the highest variance. LAeq and LAF5 provided comparable results and may require less computational effort. However, the analysis shows that only one-third of the variance explained by fixed effects was attributable to the loudness level. Sixteen percent stemmed from perceived properties of the soundscape; 1\% were attributable to relatively temporally stable, person-related predictors like participants' age; non-auditory situational predictors made no additional contribution. The results thus did not confirm previous findings on loudness perception under laboratory conditions, emphasizing the importance of the situational context. Along with the current paper, a comprehensive dataset, including the assessed person-related, situational, and sound-related measures as well as LAeq time-series and third-octave spectrograms, is provided to enable further research on sound perception, indoor soundscapes, and emotion.}, subject = {Lautwahrnehmung}, language = {en} } @article{BrinkmannAspoeckAckermannetal.2021, author = {Brinkmann, Fabian and Asp{\"o}ck, Lukas and Ackermann, David and Opdam, Rob and Vorl{\"a}nder, Michael and Weinzierl, Stefan}, title = {A benchmark for room acoustical simulation. Concept and database}, series = {Applied Acoustics}, volume = {176}, journal = {Applied Acoustics}, publisher = {Elsevier}, issn = {0003-682X}, doi = {10.1016/j.apacoust.2020.107867}, year = {2021}, language = {en} } @article{WeinzierlLepaAckermann2018, author = {Weinzierl, Stefan and Lepa, Steffen and Ackermann, David}, title = {A measuring instrument for the auditory perception of rooms: The Room Acoustical Quality Inventory (RAQI)}, series = {The Journal of the Acoustical Society of America}, volume = {144}, journal = {The Journal of the Acoustical Society of America}, number = {3}, publisher = {Acoustical Society of America}, issn = {0001-4966}, doi = {10.1121/1.5051453}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-58954}, pages = {1245 -- 1257}, year = {2018}, abstract = {With the Room Acoustical Quality Inventory (RAQI), a measuring instrument for the perceptual space of performance venues for music and speech has been developed. First, a focus group with room acoustical experts determined relevant aspects of room acoustical impression in the form of a comprehensive list of 50 uni- and bipolar items in different categories. Then, n = 190 subjects rated their acoustical impression of 35 binaurally simulated rooms from 2 listening positions, with symphonic orchestra, solo trumpet, and dramatic speech as audio content. Subsequent explorative and confirmative factor analyses of the questionnaire data resulted in three possible solutions with four, six, and nine factors of room acoustical impression. The factor solutions, as well as the related RAQI items, were tested in terms of reliability, validity, and several types of measurement invariance, and were cross-validated by a follow-up experiment with a subsample of 46\% of the original participants, which provided re-test reliabilities and stability coefficients for all RAQI constructs. The resulting psychometrically evaluated measurement instrument can be used for room quality assessment, acoustical planning, and the further development of room acoustical parameters in order to predict primary acoustical qualities of venues for music and speech.}, language = {en} } @inproceedings{RosenkranzBurgmayerAckermannetal.2017, author = {Rosenkranz, Andreas and Burgmayer, Ralf and Ackermann, David and H{\"a}drich, Markus and Weinzierl, Stefan}, title = {A Mobile App for Room Acoustical Measurements}, series = {Fortschritte der Akustik - DAGA 2017: 43. Jahrestagung f{\"u}r Akustik}, booktitle = {Fortschritte der Akustik - DAGA 2017: 43. Jahrestagung f{\"u}r Akustik}, editor = {Schmidt, Gerhard and Nolte, Bodo and Heute, Ulrich}, publisher = {Kiel}, address = {Deutsche Gesellschaft f{\"u}r Akustik e.V.}, isbn = {978-3-939296-12-6}, pages = {235 -- 237}, year = {2017}, language = {en} } @misc{AckermannBoehmWeinzierl2018, author = {Ackermann, David and B{\"o}hm, Christoph and Weinzierl, Stefan}, title = {A Database on Musicians' Movements During Musical Performances}, publisher = {TU Berlin}, doi = {10.14279/depositonce-7469}, year = {2018}, abstract = {The movements of 20 musicians playing 11 different musical instruments, including all standard orchestral instruments, were captured during solo performances by means of a motion capturing system under concert-like conditions.}, language = {en} } @article{AckermannBoehmWeinzierl2017, author = {Ackermann, David and B{\"o}hm, Christoph and Weinzierl, Stefan}, title = {On the numerical simulation of natural acoustic sound sources [Meeting Abstract]}, series = {The Journal of the Acoustical Society of America}, volume = {141}, journal = {The Journal of the Acoustical Society of America}, number = {5_Supplement}, issn = {0001-4966}, doi = {10.1121/1.4989163}, pages = {3997 -- 3997}, year = {2017}, abstract = {A convincing auralization of acoustical scenes does not only require a proper modeling of the sound propagation between source and receiver, but also an appropriate representation of the acoustical source itself. While the properties of electro-acoustic sources can be well represented by advanced loudspeaker formats with high resolution, the complex, time-variant behavior of natural acoustic sources such as speakers, singers or musical instruments is not in any way considered by current techniques for acoustical simulation and auralization. In the talk, we will present measurement results of the sound power and directivity of natural acoustic sound sources and their dependence on pitch and dynamic level, as well as measurements of typical movements of the source during musical performances. We will demonstrate the physical and perceptual relevance of these effects both in the direct field and in room acoustical environments based on a technical and perceptual evaluation, and discuss new approaches to include these effects in numerical simulations.}, language = {en} } @misc{AckermannDomannBrinkmannetal.2022, author = {Ackermann, David and Domann, Julian and Brinkmann, Fabian and Arend, Johannes M. and Weinzierl, Stefan}, title = {Database: Recordings of a Loudspeaker Orchestra with Multi-Channel Microphone Arrays for the Evaluation of Spatial Audio Methods}, publisher = {TU Berlin}, address = {Berlin}, doi = {10.14279/depositonce-15774.3}, year = {2022}, abstract = {For a comparative physical and perceptual evaluation of conceptually different binaural rendering techniques, recordings are needed in which all other factors affecting the sound, such as the sound radiation of the sources, the room acoustic environment and the recording position are kept constant. To provide such a recording, the sound field of an 18-channel loudspeaker orchestra fed by anechoic recordings of a chamber orchestra was captured in two rooms with nine different receivers. In addition, impulse responses were recorded for each sound source and receiver. The anechoic audio signals, the full loudspeaker orchestra recordings and all measured impulse responses are available with open access in the SOFA 2.1 (AES69-2022) format.}, language = {en} } @misc{AckermannIlseGrigorievetal.2018, author = {Ackermann, David and Ilse, Michael and Grigoriev, Dmitry and Lepa, Steffen and Pelzer, S{\"o}nke and Vorl{\"a}nder, Michael and Weinzierl, Stefan}, title = {A Ground Truth on Room Acoustical Analysis and Perception (GRAP)}, publisher = {TU Berlin}, address = {Berlin}, doi = {10.14279/depositonce-7003.4}, year = {2018}, abstract = {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).}, language = {en} } @misc{BoehmAckermannWeinzierl2018, author = {B{\"o}hm, Christoph and Ackermann, David and Weinzierl, Stefan}, title = {A Multi-channel Anechoic Orchestra Recording of Beethoven's Symphony No. 8 op. 93: Audio Recordings and Accompanying Data}, publisher = {TU Berlin}, address = {Berlin}, doi = {10.14279/depositonce-6729.2}, year = {2018}, abstract = {This data set contains an excerpt of the anechoic recording of the Symphony No. 8 in F Major, Op. 93 by Ludwig van Beethoven, performed by the "Orchester Wiener Akademie" conducted by Martin Haselb{\"o}ck. It was recorded in the anechoic chamber of the TU Berlin.}, language = {en} } @misc{AspoeckBrinkmannAckermannetal.2019, author = {Asp{\"o}ck, Lukas and Brinkmann, Fabian and Ackermann, David and Weinzierl, Stefan and Vorl{\"a}nder, Michael}, title = {BRAS - A Benchmark for Room Acoustical Simulation}, publisher = {TU Berlin}, address = {Berlin}, doi = {10.14279/depositonce-6726.3}, year = {2019}, language = {en} } @inproceedings{EbertAckermannWeinzierl2025, author = {Ebert, Julian and Ackermann, David and Weinzierl, Stefan}, title = {Messung der Richtcharakteristik von Mikrofonen mit hoher Aufl{\"o}sung [Manuscript]}, series = {Fortschritte der Akustik - DAS\DAGA 2025}, booktitle = {Fortschritte der Akustik - DAS\DAGA 2025}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik eV (DEGA)}, address = {Berlin}, isbn = {978-3-939296-23-2}, doi = {10.71568/dasdaga2025.178}, pages = {487 -- 490}, year = {2025}, language = {en} } @article{BoehmAckermannWeinzierl2020, author = {B{\"o}hm, Christoph and Ackermann, David and Weinzierl, Stefan}, title = {A Multi-Channel Anechoic Orchestra Recording of Beethoven's Symphony No. 8 op. 93}, series = {Journal of the Audio Engineering Society}, volume = {68}, journal = {Journal of the Audio Engineering Society}, number = {12}, publisher = {Audio-Engineering Society}, doi = {10.17743/jaes.2020.0056}, pages = {977 -- 984}, year = {2020}, language = {en} } @inproceedings{LemkeHoelterAckermannetal.2024, author = {Lemke, Mathias and H{\"o}lter, Arne and Ackermann, David and Weinzierl, Stefan}, title = {Bestimmung von Richtcharakteristiken unter Ber{\"u}cksichtigung reflektierender Randbedingungen}, series = {Fortschritte der Akustik - DAGA 2024 - 50. Jahrestagung f{\"u}r Akustik, 18.-21. M{\"a}rz 2024, Hannover}, booktitle = {Fortschritte der Akustik - DAGA 2024 - 50. Jahrestagung f{\"u}r Akustik, 18.-21. M{\"a}rz 2024, Hannover}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik e.V.}, address = {Berlin}, isbn = {978-3-939296-22-5}, pages = {648 -- 650}, year = {2024}, language = {de} } @article{AckermannDomannBrinkmannetal.2023, author = {Ackermann, David and Domann, J. and Brinkmann, Fabian and Arend, Jan M. and Schneider, Martin and P{\"o}rschmann, Christoph and Weinzierl, Stefan}, title = {Recordings of a Loudspeaker Orchestra with Multichannel Microphone Arrays for the Evaluation of Spatial Audio Methods}, series = {Journal of the Audio Engineering Society}, volume = {71}, journal = {Journal of the Audio Engineering Society}, number = {1/2}, publisher = {Audio Engineering Society}, doi = {10.17743/jaes.2022.0059}, pages = {62 -- 73}, year = {2023}, language = {en} } @inproceedings{LemkeHoelterAckermannetal.2023, author = {Lemke, Mathias and H{\"o}lter, Arne and Ackermann, David and Weinzierl, Stefan}, title = {Physikalisch informierte Interpolation von Richtcharakteristiken [Manuskript]}, series = {Fortschritte der Akustik - DAGA 2023 - 49. Jahrestagung f{\"u}r Akustik 06. - 09. M{\"a}rz 2023, Hamburg}, booktitle = {Fortschritte der Akustik - DAGA 2023 - 49. Jahrestagung f{\"u}r Akustik 06. - 09. M{\"a}rz 2023, Hamburg}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik e.V.}, address = {Berlin}, isbn = {978-3-939296-21-8}, pages = {1656 -- 1659}, year = {2023}, language = {de} } @article{KobAckermannWeinzierletal.2018, author = {Kob, Malte and Ackermann, David and Weinzierl, Stefan and Zotter, Franz}, title = {Dynamische Richtwirkung von Musikinstrumenten}, series = {Akustik Journal}, volume = {3}, journal = {Akustik Journal}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik e.V.}, issn = {2569-1597}, pages = {28 -- 38}, year = {2018}, language = {de} } @article{AckermannFiedlerBrinkmannetal.2020, author = {Ackermann, David and Fiedler, Felicitas and Brinkmann, Fabian and Schneider, Martin and Weinzierl, Stefan}, title = {On the Acoustic Qualities of Dynamic Pseudo-Binaural Recordings}, series = {Journal of the Audio Engineering Society}, volume = {68}, journal = {Journal of the Audio Engineering Society}, number = {6}, publisher = {Audio-Engineering Society}, issn = {0004-7554}, doi = {10.17743/jaes.2020.0036}, pages = {418 -- 427}, year = {2020}, abstract = {The motion-tracked binaural (MTB) technique allows the dynamic, pseudobinaural rendering of spatial sound scenes recorded by a circular array of microphones on a rigid sphere. The system provides a multichannel live audio transmission from which a head-related signal with approximated interaural time and level differences can be derived and played via headphones, head tracking, and a corresponding rendering software. The latter is mainly calculating imperceptible interpolation between channel pairs during head movements. This contribution evaluates the potential of this format for the creation of virtual acoustic envi- ronments. Based on the technical realization of a 16-channel MTB array with omnidirectional diffuse field-corrected electret condenser microphone capsules, the plausibility of 8 and 16-channel recordings was tested against a physical sound source. Furthermore, the sound quality of the pseudobinaural rendering was assessed based on different items of the Spatial Audio Quality Inventory (SAQI) compared to a true dynamic binaural reference. The results show that the overall plausibility of the MTB signal with optimal interpolation is close to the reference. Even if there are small differences with respect to tone color and spatial sound source attributes, the degree of externalization and even the perceived source elevation were, despite the absence of pinna cues, well comparable to the true binaural reference.}, language = {en} } @inproceedings{GrigorievAckermannPelzeretal.2016, author = {Grigoriev, Dmitry and Ackermann, David and Pelzer, S{\"o}nke and Weinzierl, Stefan}, title = {Ein psychologisches Messinstrument f{\"u}r die akustische Wahrnehmung von R{\"a}umen f{\"u}r Musik und Sprache: Stimulus-Erzeugung}, series = {Fortschritte der Akustik - DAGA 2016: 42. Deutsche Jahrestagung f{\"u}r Akustik, 14.-17. M{\"a}rz 2016 in Aachen}, booktitle = {Fortschritte der Akustik - DAGA 2016: 42. Deutsche Jahrestagung f{\"u}r Akustik, 14.-17. M{\"a}rz 2016 in Aachen}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik e.V.}, address = {Berlin}, isbn = {978-3-939296-10-2}, pages = {309 -- 312}, year = {2016}, language = {de} } @inproceedings{FiebigAckermannBoehmetal.2022, author = {Fiebig, Andr{\´e} and Ackermann, David and B{\"o}hm, Sandra and Chudalla, Michael and Karakantas, Athansios and Oehme, Astrid and Pourpart, Sophie and Schuck, Moritz and Strigari, Fabio and Weinzierl, Stefan}, title = {Attribute zur gesamtheitlichen Charakterisierung der Wahrnehmung von Straßenverkehrsger{\"a}uschen}, series = {Fortschritte der Akustik - DAGA 2022 - 48. Jahrestagung f{\"u}r Akustik 21.-24. M{\"a}rz 2022, Stuttgart und Online}, booktitle = {Fortschritte der Akustik - DAGA 2022 - 48. Jahrestagung f{\"u}r Akustik 21.-24. M{\"a}rz 2022, Stuttgart und Online}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik e.V.}, isbn = {978-3-939296-20-1}, doi = {10.14279/depositonce-15552}, pages = {500 -- 503}, year = {2022}, language = {de} } @article{BrinkmannAspoeckAckermannetal.2019, author = {Brinkmann, Fabian and Asp{\"o}ck, Lukas and Ackermann, David and Lepa, Steffen and Vorl{\"a}nder, Michael and Weinzierl, Stefan}, title = {A Round Robin on Room Acoustical Simulation and Auralization}, series = {Journal of the Acoustical Society of America}, volume = {145}, journal = {Journal of the Acoustical Society of America}, number = {4}, publisher = {Acoustical Society of America}, issn = {0001-4966}, doi = {10.1121/1.5096178}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-59034}, pages = {2746 -- 2760}, year = {2019}, abstract = {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.}, language = {en} } @article{AckermannBrinkmannZotteretal.2021, author = {Ackermann, David and Brinkmann, Fabian and Zotter, Franz and Kob, Malte and Weinzierl, Stefan}, title = {Comparative Evaluation of Interpolation Methods for the Directivity of Musical Instruments}, series = {EURASIP Journal on Audio, Speech, and Music Processing}, volume = {2021}, journal = {EURASIP Journal on Audio, Speech, and Music Processing}, number = {1}, publisher = {Springer Nature}, issn = {1687-4722}, doi = {10.1186/s13636-021-00223-6}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-58992}, year = {2021}, abstract = {Measurements of the directivity of acoustic sound sources must be interpolated in almost all cases, either for spatial upsampling to higher resolution representations of the data, for spatial resampling to another sampling grid, or for use in simulations of sound propagation. The performance of different interpolation techniques applied to sparsely sampled directivity measurements depends on the sampling grid used but also on the radiation pattern of the sources themselves. Therefore, we evaluated three established approaches for interpolation from a low-resolution sampling grid using high-resolution measurements of a representative sample of musical instruments as a reference. The smallest global error on average occurs for thin plate pseudo-spline interpolation. For interpolation based on spherical harmonics (SH) decomposition, the SH order and the spatial sampling scheme applied have a strong and difficult to predict influence on the quality of the interpolation. The piece-wise linear, spherical triangular interpolation provides almost as good results as the first-order spline approach, albeit with on average 20 times higher computational effort. Therefore, for spatial interpolation of sparsely sampled directivity measurements of musical instruments, the thin plate pseudo-spline method applied to absolute-valued data is recommended and, if necessary, a subsequent modeling of the phase}, language = {en} } @article{AckermannBrinkmannWeinzierl2024, author = {Ackermann, David and Brinkmann, Fabian and Weinzierl, Stefan}, title = {Musical instruments as dynamic sound sources}, series = {Journal of the Acoustical Society of America}, volume = {155}, journal = {Journal of the Acoustical Society of America}, publisher = {Acoustical Society of America}, issn = {1520‑8524}, doi = {10.1121/10.0025463}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-58972}, pages = {2302 -- 2313}, year = {2024}, abstract = {Unlike electro-acoustic sound sources, musical instruments have a time-varying, dynamic directivity, due to the note-dependent radiation behavior of the instrument and due to the expressive movements that musicians perform with their instrument. While previous studies have generally examined the directivity of the static, unmoved instrument for specific notes played, we show the individual and combined contributions of these two factors to a temporal modulation of the radiation behavior, based on motion tracking of typical movement patterns for all instruments of a classical symphony orchestra and on the directivity measured for all partials over the entire pitch range of these instruments. The effect of this modulation, which is manifested by changes in timbre and room acoustic excitation, was determined by spectral variations in the free field and under reverberant conditions, as well as by a modulation of room acoustic parameters. Our results show that these effects are well above the just noticeable differences for all musical instruments and all perceptual variables considered. While the effect of motion dominates for brass instruments, string and woodwind instruments exhibit large note-related differences, which should be taken into account in virtual acoustic realities if an auditory liveliness comparable to physical reality is to be achieved.}, language = {en} } @article{AckermannBoehmBrinkmannetal.2019, author = {Ackermann, David and B{\"o}hm, Christoph and Brinkmann, Fabian and Weinzierl, Stefan}, title = {The Acoustical Effect of Musicians' Movements During Musical Performances}, series = {Acta Acustica united with Acustica}, volume = {105}, journal = {Acta Acustica united with Acustica}, number = {2}, publisher = {Hirzel}, issn = {1861-9959}, doi = {10.3813/AAA.919319}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-59024}, pages = {356 -- 367}, year = {2019}, abstract = {Acoustic musical instruments act as dynamic sound sources communicating the expressive intentions of a performer to the audience in a dedicated spatial environment. From an acoustical point of view, the directivity of musical instruments is relevant both for the loudness and timbre of an instrument at a certain position in the audience, as well as for the spatial characteristics of the generated sound field. Musical instruments, however, are dynamic sound sources always moved by musicians as an element of their performance on stage. This work aims at assessing the acoustical effect and the perceptual relevance of these movements. For this purpose, we have recorded solo musical performances with all standard orchestral instruments with an optical motion tracking system, as well as the corresponding audio signals. The effect of the movements was evaluated by analysing the spectral fluctuation and the time-dependence of room acoustical parameters in a virtual acoustic environment in anechoic and reverberant conditions. In a subsequent listening test, an auralization of the static and dynamic musical performance was presented to listeners by binaural synthesis, showing that the signal-related fluctuations are clearly audible both in anechoic and reverberant situations. We discuss different approaches how to consider these effects for the simulation of natural acoustic sources in virtual acoustic reality.}, language = {en} } @article{AckermannBrinkmannWeinzierl2024, author = {Ackermann, David and Brinkmann, Fabian and Weinzierl, Stefan}, title = {A Database with Directivities of Musical Instruments}, series = {Journal of the Audio Engineering Society}, volume = {72}, journal = {Journal of the Audio Engineering Society}, number = {3}, publisher = {Audio Engineering Society}, issn = {1549-4950}, doi = {10.17743/jaes.2022.0128}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-58923}, pages = {170 -- 179}, year = {2024}, language = {en} } @inproceedings{GreifAckermannKokabietal.2020, author = {Greif, Jakob and Ackermann, David and Kokabi, Omid and Weinzierl, Stefan}, title = {Kann man die Form eines Konzertsaales h{\"o}ren? Ein audiovisueller Test in simulierten 3D-Umgebungen [Abstract]}, series = {Fortschritte der Akustik - DAGA 2020 - 46. Jahrestagung f{\"u}r Akustik, 16.-19. M{\"a}rz 2020, Hannover}, booktitle = {Fortschritte der Akustik - DAGA 2020 - 46. Jahrestagung f{\"u}r Akustik, 16.-19. M{\"a}rz 2020, Hannover}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik e.V.}, isbn = {978-3-939296-17-1}, pages = {1153 -- 1156}, year = {2020}, language = {en} } @inproceedings{BoehmAckermannWeinzierl2018, author = {B{\"o}hm, Christoph and Ackermann, David and Weinzierl, Stefan}, title = {Eine mehrkanalige und nachhallfreie Aufnahme von Beethovens 8. Sinfonie}, series = {Fortschritte der Akustik - DAGA 2018 - 44. Jahrestagung f{\"u}r Akustik 19.-22. M{\"a}rz 2018, M{\"u}nchen}, booktitle = {Fortschritte der Akustik - DAGA 2018 - 44. Jahrestagung f{\"u}r Akustik 19.-22. M{\"a}rz 2018, M{\"u}nchen}, editor = {Seeber, Bernhard}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik e.V.}, address = {Berlin}, isbn = {978-3-939296-14-0}, doi = {10.14279/depositonce-8678}, pages = {112 -- 115}, year = {2018}, language = {de} } @inproceedings{BoegeleinBrinkmannAckermannetal.2018, author = {B{\"o}gelein, Silke and Brinkmann, Fabian and Ackermann, David and Weinzierl, Stefan}, title = {Localization Cues of a Spherical Head Model [Abstract]}, series = {Fortschritte der Akustik - DAGA 2018 - 44. Jahrestagung f{\"u}r Akustik 19.-22. M{\"a}rz 2018, M{\"u}nchen}, booktitle = {Fortschritte der Akustik - DAGA 2018 - 44. Jahrestagung f{\"u}r Akustik 19.-22. M{\"a}rz 2018, M{\"u}nchen}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik e.V.}, isbn = {978-3-939296-13-3}, pages = {347 -- 350}, year = {2018}, language = {en} } @misc{WeinzierlVorlaenderAckermannetal.2024, author = {Weinzierl, Stefan and Vorl{\"a}nder, Michael and Ackermann, David and Behler, Gottfried and Brinkmann, Fabian and von Coler, Henrik and Detzner, Erik and Kr{\"a}mer, Johannes and Lindau, Alexander and Pollow, Martin and Schulz, Frank and Shabtai, Noam R.}, title = {A Database of Anechoic Microphone Array Measurements of Musical Instruments}, volume = {Version 3}, publisher = {Technische Universit{\"a}t Berlin, RWTH Aachen University}, doi = {10.14279/depositonce-19858}, year = {2024}, language = {en} } @inproceedings{FiedlerAckermannBrinkmannetal.2017, author = {Fiedler, Felicitas and Ackermann, David and Brinkmann, Fabian and Schneider, Martin and Weinzierl, Stefan}, title = {Entwicklung und Evaluation eines Mikrofonarrays f{\"u}r die Aufnahme von r{\"a}umlichen Schallfeldern nach dem Motion-Tracked Binaural (MTB) Verfahren}, series = {Fortschritte der Akustik - DAGA 2017: 43. Jahrestagung f{\"u}r Akustik, 06. - 09. M{\"a}rz 2017 in Kiel}, booktitle = {Fortschritte der Akustik - DAGA 2017: 43. Jahrestagung f{\"u}r Akustik, 06. - 09. M{\"a}rz 2017 in Kiel}, editor = {Schmidt, Gerhard and Nolte, Bodo and Heute, Ulrich}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik e.V.}, address = {Berlin}, isbn = {978-3-939296-12-6}, pages = {1115 -- 1117}, year = {2017}, language = {de} } @inproceedings{AspoeckBrinkmannAckermannetal.2018, author = {Asp{\"o}ck, Lukas and Brinkmann, Fabian and Ackermann, David and Weinzierl, Stefan and Vorl{\"a}nder, Michael}, title = {Eine Datenbank zur Validierung von akustischen Simulationen}, series = {Fortschritte der Akustik - DAGA 2018: 44. Jahrestagung f{\"u}r Akustik, 19.-22. M{\"a}rz 2018 in M{\"u}nchen}, booktitle = {Fortschritte der Akustik - DAGA 2018: 44. Jahrestagung f{\"u}r Akustik, 19.-22. M{\"a}rz 2018 in M{\"u}nchen}, editor = {Seeber, Bernhard}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik e.V.}, address = {Berlin}, isbn = {978-3-939296-13-3}, pages = {1337 -- 1337}, year = {2018}, language = {de} }