Sökning: "ray acoustics"

Hittade 5 uppsatser innehållade orden ray acoustics.

  1. 1. Immersive Audio : Simulated Acoustics for Interactive Experiences

    Master-uppsats, Linköpings universitet/Medie- och Informationsteknik; Linköpings universitet/Tekniska fakulteten

    Författare :Linus Arvidsson; [2022]
    Nyckelord :acoustics; simulation; interactive sound propagation; spatial audio; ray tracing;

    Sammanfattning : A key aspect of immersive audio is realistic acoustics. To get plausible acoustics for an environment the impulse response can be generated using acoustic simulations and should ideally be updated in real-time for interactive applications. LÄS MER

  3. 2. Simulating Low Frequency Reverberation in Rooms

    Master-uppsats, KTH/Marcus Wallenberg Laboratoriet MWL

    Författare :Mattias Svensson; [2020]
    Nyckelord :Low frequencies; Room acoustics; Finite Difference Time Domain method; FDTD.; Rumsakustik; låga frekvenser; Finite Difference Time Domain metoden; FDTD.;

    Sammanfattning : The aim of this thesis was to make a practical tool for low frequency analysis in room acoustics.The need arises from Acad’s experience that their results from simulations using raytracing software deviate in the lower frequencies when compared to field measurements inrooms. LÄS MER

  4. 3. GPU Accelerated Ray-tracing for Simulating Sound Propagation in Water

    Master-uppsats, Linköpings universitet/Datorteknik

    Författare :Mattias Ulmstedt; Joacim Stålberg; [2019]
    Nyckelord :ray-tracing; ray acoustics; sound propagation; underwater; simulation; turing architecture; RT cores; ray-tracing cores;

    Sammanfattning : The propagation paths of sound in water can be somewhat complicated due to the fact that the sound speed in water varies with properties such as water temperature and pressure, which has the effect of curving the propagation paths. This thesis shows how sound propagation in water can be simulated using a ray-tracing based approach on a GPU using Nvidia’s OptiX ray-tracing engine. LÄS MER

  5. 4. Simulering av exteriört bussljud : Undersökande av en Ray Tracing metod för ljudsimuleringar

    M1-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Markus Andmarsjö; [2014]
    Nyckelord :ray tracing; acoustics; noise; sound; odeon; ray tracing; akustik; ljud; odeon;

    Sammanfattning : En metod för att simulera exteriört bussljud med hjälp utav Ray Tracing har testats och utvärderats. En modell av en buss har byggts upp i ett CAD program. Dominerande ljudkällor i bussen samt materialkoefficienter har tagits fram för de material som ingår i bussen. LÄS MER

  7. 5. Mapping articulatory parameters on formant patterns : From articulations to acoustics non-stop

    Magister-uppsats, Avdelningen för fonetik

    Författare :Elisabet Eir Cortes; [2010]
    Nyckelord :Area function; articulation; articulatory parameters; acoustics; formants; inverse problem; jaw; larynx; lips; multiple regression analysis; pharynx; phonetics; principal component analysis; tongue; X-ray;

    Sammanfattning : The traditional way of estimating the formant frequencies from articulatory data presupposes knowledge of how the vocal tract cross-sectional area varies for a given articulatory shape (Fant 1960/1970). Accordingly, in order to derive the formant pattern of a given articulation, the three-dimensional shape of the vocal tract (VT) needs to be known. LÄS MER