Modeling of Complex Geometries and Boundary Conditions in Finite Difference/Finite Volume Time Domain Room Acoustics Simulation [PDF]
Due to recent increases in computing power, room acoustics simulation in 3D using time stepping schemes is becoming a viable alternative to standard methods based on ray tracing and the image source method.
Bilbao, Stefan
core +3 more sources
For architects, real-time 3D visual rendering of CAD-models is a valuable tool. The architect usually perceives the visual appearance of the building interior in a natural and realistic way during the design process.
Sönke Pelzer +3 more
doaj +3 more sources
Passive volumetric time domain simulation for room acoustics applications [PDF]
A major design consideration for volumetric wave-based time-domain room acoustics simulation methods, such as finite difference time domain (FDTD) methods, must be sufficiently general, or robust, to handle irregular room geometries and frequency-dependent and spatially varying wall conditions.
Bilbao, Stefan, Hamilton, Brian
openaire +5 more sources
Computer modeling in acoustics allows for the prediction of acoustical defects and the evaluation of potential remediations. In this article, computer modeling is applied to the case of a barrel-vaulted sanctuary whose architectural design and ...
Heather Lai, Brian Hamilton
doaj +1 more source
Computing Room Acoustics Using 3D FDTD: A Cuda Approach. [PDF]
In seeking to model realistic room acoustics, direct numerical simulation can be employed. This paper presents 3D Finite Difference Time Domain schemes that incorporate losses at boundaries and due to the viscosity of air.
Bilbao, Stefan, Webb, C.
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Acoustic simulation of J.S. Bach’s Thomaskirche in 1723 and 1539
This paper investigates an early acoustical theory of Hope Bagenal about the Leipzig Thomaskirche, where J.S. Bach composed and conducted from 1723 to 1750. Bagenal predicted that the church had a shorter reverberation time than previously in Bach’s time
Boren Braxton B.
doaj +1 more source
Waveguide physical modeling of vocal tract acoustics: flexible formant bandwidth control from increased model dimensionality [PDF]
Digital waveguide physical modeling is often used as an efficient representation of acoustical resonators such as the human vocal tract. Building on the basic one-dimensional (1-D) Kelly-Lochbaum tract model, various speech synthesis techniques ...
Howard, D M, Mullen, J, Murphy, D T
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Study on Chinese Speech Intelligibility Under Different Low-Frequency Characteristics of Reverberation Time Using a Hybrid Method [PDF]
Reverberation time (RT) is an important indicator of room acoustics, however, most studies focus on the mid-high frequency RT, and less on the low-frequency RT.
Wuqiong Huang, Jianxin Peng, Tinghui Xie
doaj +1 more source
Acoustic modeling using the digital waveguide mesh [PDF]
The digital waveguide mesh has been an active area of music acoustics research for over ten years. Although founded in 1-D digital waveguide modeling, the principles on which it is based are not new to researchers grounded in numerical simulation, FDTD ...
Kelloniemi, Antti +3 more
core +2 more sources
Pilot study on the influence of spatial resolution of human voice directivity on speech perception
A perceptual threshold related to spatial resolution of the human voice directivity was determined through a listening test of similarity (MUSHRA). Directivity data of an artificial talking head measured at high spatial resolution (spherical harmonics ...
Quélennec Aurian, Luizard Paul
doaj +1 more source

