Head-Related Transfer Functions (HRTFs) allow to obtain the spatial, temporal and frequency informations of the acoustic pressure perceived by human beings at the eardrums. Obtaining these informations guarantees not only the identification of the morphological differences of the human ear that vary from person to person, but also allows to reconstruct the perception of the locations of the sound sources in space and time. This thesis aims at the analytical synthesis and generation of approximated HRTFs for the simulation of acoustic field values for different dimensions of the human head treated as a rigid sphere. With the help of physical-mathematical notions relating to the propagation of mechanical waves and the application of the concept of acoustic scattering, data sets containing informations of the aural acoustic pressure are created.
Le Head-Related Transfer Function (HRTF) permettono di ottenere le informazioni spaziali, temporali e frequenziali della pressione acustica percepita dagli esseri umani ai timpani delle orecchie. Ottenere queste informazioni garantisce non solo l'identificazione delle differenze morfologiche dell'orecchio umano che variano da persona a persona, ma permette anche di ricostruire la percezione nello spazio e nel tempo delle ubicazioni delle sorgenti sonore. Questa tesi ha come obbiettivo la sintesi analitica e la generazione di HRTF approssimate per la simulazione dei valori di campo acustico per diverse dimensioni della testa umana trattata come una sfera rigida. Con l'ausilio delle nozioni fisico-matematiche inerenti la propagazione di onde meccaniche e l'applicazione del concetto di scattering acustico, vengono creati dei data set contenenti le informazioni sulla pressione acustica aurale.
Scattering Acustico attorno ad una Sfera Rigida per la Generazione di un Dataset di Head-Related Transfer Function Approssimate
ALESSANDRI, ANDREA
2023/2024
Abstract
Head-Related Transfer Functions (HRTFs) allow to obtain the spatial, temporal and frequency informations of the acoustic pressure perceived by human beings at the eardrums. Obtaining these informations guarantees not only the identification of the morphological differences of the human ear that vary from person to person, but also allows to reconstruct the perception of the locations of the sound sources in space and time. This thesis aims at the analytical synthesis and generation of approximated HRTFs for the simulation of acoustic field values for different dimensions of the human head treated as a rigid sphere. With the help of physical-mathematical notions relating to the propagation of mechanical waves and the application of the concept of acoustic scattering, data sets containing informations of the aural acoustic pressure are created.File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/72107