Projekteja vuodessa
Abstrakti
This paper presents a database of near-field head-related transfer functions (HRTFs) of an artificial head, measured at four distances (0.2, 0.3, 0.4 and 0.5 m), with 49 positions recorded at each distance, for a total of 196 measurement points. The HRTFs were recorded using an acoustic pulse created by a laser-induced breakdown of air (LIB), which realizes a close to ideal, massless, monopole sound source. While the LIB produces a high amplitude pressure pulse, the amplitude decays toward low frequencies, which introduced a low frequency limit of about 200 Hz for this particular setup. Thus, a spherical head model based on the analytical expression for scattering by a rigid sphere was fitted to the measured data, and used to extend the low frequency range of the measurements. A brief evaluation of the processed dataset was undertaken, considering interaural time and level differences. The measured and processed database, as well as the low frequency extension procedure are made publicly available to support future research into nearby sound localization, and virtual/augmented reality applications.
Alkuperäiskieli | Englanti |
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Artikkeli | 109173 |
Sivumäärä | 8 |
Julkaisu | Applied Acoustics |
Vuosikerta | 203 |
DOI - pysyväislinkit | |
Tila | Julkaistu - 28 helmik. 2023 |
OKM-julkaisutyyppi | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä |
Sormenjälki
Sukella tutkimusaiheisiin 'A database of near-field head-related transfer functions based on measurements with a laser spark source'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.Tietoaineistot
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Dataset: A database of near-field head-related transfer functions based on measurements with a laser spark source
Marschall, M. (Creator), Gómez Bolaños, J. (Creator), Prepelita, S. (Creator) & Pulkki, V. (Creator), Zenodo, 2023
DOI - pysyväislinkki: 10.5281/zenodo.7316544, https://zenodo.org/record/7316545
Tietoaineisto: Dataset
Projektit
- 1 Päättynyt
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Akustiikan hybridimallinnus virtuaalimaailmojen äänentoistoa varten
Pulkki, V. (Vastuullinen tutkija)
01/09/2018 → 31/08/2022
Projekti: Academy of Finland: Other research funding
Laitteet
Lehtileikkeet
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Findings from Aalto University in the Area of Information Technology Described (A Database of Near-field Head-related Transfer Functions Based On Measurements With a Laser Spark Source)
14/03/2023
1 kohde/ Medianäkyvyys
Lehdistö/media: Esiintyminen mediassa