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4 edition of Interactive image-source techniques for virtual acoustics found in the catalog.

Interactive image-source techniques for virtual acoustics

Sean Thompson

Interactive image-source techniques for virtual acoustics

by Sean Thompson

  • 156 Want to read
  • 13 Currently reading

Published by National Library of Canada in Ottawa .
Written in English


Edition Notes

SeriesCanadian theses = -- Th`eses canadiennes
The Physical Object
FormatMicroform
Pagination1 microfiche : negative.
ID Numbers
Open LibraryOL21241697M
ISBN 100612738981
OCLC/WorldCa54005775

entitled Hybrid method for numerical simulation of room acoustics: Part 2 – Validation of the computational code RAIOS 3, a validation of the method in an international inter-comparison with other softwares and measurements data is presented, showing the efficiency and the accuracy of the proposed hybrid method over non-hybrid ones. It is described the development of a multichannel spatial audio auralization engine for a CAVE system, based on the adaptation of an image source acoustic simulator to an Ambisonics coder. It was conceived under the AUDIENCE system architecture, which addresses the main auralization phases in four stages: the scene description, the acoustic simulation, the sound field encoding, and the spatial.

Experience design, both in real and in virtual museums, is very complex to be planned, even more when digital contents are juxtaposed to real collections. Researchers in this field, curators, creatives and software developers must work together in order to evolve towards a more efficient interconnection among visitors, collections and digital : Eva Pietroni. The Use of Computer Modeling in Room Acoustics J. H. Rindel Technical University of Denmark Abstract: After decades of development room acoustical computer models have matured. Hybrid methods combine the best features from image source models and ray tracing methods and have led to significantly reduced calculation times.

Keywords: binaural hearing, virtual acoustics, auralization, audio-visual interaction visual stimuli projected on a screen in front of the participant can be used to simulate a visible space and/or support interactive manipulations by the subject. An Image Source Computer Model for Room Acoustics Analysis and Electroacoustic Simulation. Cited by: BRIR models. Simple models of BRIRs were constructed using a three-dimensional image-model (Allen and Berkley, ) to simulate early specular reflections within a hypothetical rectangular room and a statistical model of the late diffuse reverberant approach, while relying on a variety of assumptions and simplifications, is fundamentally similar to that described by Heinz ( Cited by:


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Interactive image-source techniques for virtual acoustics by Sean Thompson Download PDF EPUB FB2

The two main variants of ray-based methods are the image source method and ray-tracing. Image sources will calculate the reflection paths of a sound from each wall. For more information on virtual acoustics, I recommend this great interactive text book [8] that demonstrates some of the techniques discussed above though interactive.

The theory and techniques for virtual acoustic modeling and rendering are discussed. The creation of natural sounding audiovisual environments can be divided Interactive image-source techniques for virtual acoustics book three main tasks: sound source, room acoustics, and listener modeling.

These topics axe discussed in the context of both non-real-time and real-time virtual acoustic environments. 3/10/17 1 Ville Pulkki, Tapio Lokki Virtual acoustics and spatial audio ELEC-E, Audio Signal Processing Agenda • Virtual Acoustics • Spatial audio techniques • Vector -base amplitude panning VBAP (separate slides) • Directional audio coding DirAC (separate slides) File Size: 3MB.

The theory and techniques for virtual acoustic modeling and rendering are discussed. The creation of natural sounding audiovisual environments can be divided into three main tasks: sound source, room acoustics, and listener modeling.

These topics are discussed in the context of both non-real-time and real-time virtual acoustic environments. The theory and techniques for virtual acoustic modeling and rendering are discussed. The creation of natural sounding audiovisual environments can be divided into three main tasks: sound source.

A modification of the commonly known image source method is presented, which reduces the computation demands of this highly time-expensive approach remarkably. Techniques. Blogue d'Audiokinetic For more information on virtual acoustics, I recommend this great interactive text book [8] that demonstrates some of the techniques discussed above though interactive animations.

Interactive text book [8]. Wave-based simulation techniques can nowadays be realized in Figure 1: Interactive room acoustics demo of a medieval church in the aixCAVE virtual environment at RWTH Aachen University.

real-time for a limited low-frequency range (e.g. finite-difference time-domain (FDTD) and derivatives using graphic processors [5, 6]).File Size: 8MB.

A beam tracing method for interactive architectural acoustics Thomas Funkhousera) Princeton University, Princeton, New Jersey spatialized sound effects in interactive virtual environment systems.1,2 image source methods, ray tracing, and beam tracing have been used to construct the sound propagation paths.

Boundary element methods. Image method for efficiently simulating small-room acoustics Jont B. Allen and David A. Berkley.4cousties Research Department, Bell Laboratories. Murray Hill, New Jersey (Received 6 June ) Image methods are commonly used for the analysis of. Modeling Sound Propagation in Interactive Virtual Environment Systems Abstract This paper surveys concepts, algorithms, and systems for modeling sound propagation in interactive virtual environment applications.

First, we review physically-based geometric al-gorithms for modeling the propagation of early arriving sound waves. Second, we describeFile Size: 1MB.

Virtual Reality Sound Source Image Source Room Impulse Response Room Acoustics These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm : Michael Vorländer, Sönke Pelzer, Frank Wefers.

Urban sound is one of the main concerns of architects and urban planners in contemporary cities: how to control it, what to do about noise pollution, where silent areas should be situated, or which urban decisions must be made. These questions, among others, are based on spatial sound.

Virtual reality is a powerful technology that can serve as a design tool to find some answers to these : Josep Llorca. Applied Acoustics 17 () An Image Source Computer Model for Room Acoustics Analysis and Electroacoustic Simulation J.

Kirszenstein Department of Building Acoustics, Chalmers University of Technology, S 96 Gothenburg (Sweden) (Received: 19 May, ) SUMMARY A computer program jbr the determination of the impulse response of rooms, using the mirror image method, has been Cited by: of virtual acoustics is discussed, whic h includes mo dels for sound sources, ro om acoustics, and spatial hearing.

Real-time virtual acoustics mo deling is carried out using a real-time para-metric ro om impulse resp onse rendering tec hnique prop osed b y the author. The algorithm uses a w ell-kno wn time-domain h ybrid mo del, in whic h the. Proc. of the 2nd International Symposium on Ambisonics and Spherical Acoustics May, Paris, France DEPTH PERCEPTION IN INTERACTIVE VIRTUAL ACOUSTIC ENVIRONMENTS USING HIGHER ORDER AMBISONIC SOUNDFIELDS Gavin Kearney, Marcin Gorzel, Frank Boland and Henry Rice School of Engineering Trinity College Dublin, Ireland [email protected] auditory scenes for interactive virtual acoustic reproduction over headphones.

The framework considers the parameterization of real-world soundfields and subsequent real-time auralization us-ing a hybrid image source method/measurement-based auraliza-tion.

Image-source method for room acoustics Background. The image-source model (ISM) is a well-known technique that can be used in order to generate a synthetic room impulse response (RIR), i.e., a transfer function between a sound source and an acoustic sensor, in a given environment.

Once such a RIR is available, a sample of audio data can be. For conference room design especially, the proper sound management can make or break the success of your meetings.

If your conference room or meeting space is intended for private conversations, there are sound absorption techniques that can provide all the discretion you need. Computerized room acoustics modeling has been practiced for almost 50 years up to date.

These modeling techniques play an important role in room acoustic design nowadays, often including auralization, but can also help in the construction of virtual environments for such applications as computer games, cognitive research, and training. This overview describes the main principles, Cited by:.

Abstract. We present an overview of our simulation and visualization system for sound propagation within closed rooms. For acoustic simulation we use a particle-tracing algorithm, the phonon tracing, which is suitable to simulate mid- and high-frequency by: 1. Room acoustics is the phenomenon of how sound performs and interacts with a space.

Virtual reality is an emerging technology that enhances a reality experience with an unlimited amount of space. This essay focuses on the interaction between sound and space in virtual : Qianhua Fu.The aim of auralization in room acoustics is to make the acoustics of a room au-dible.

That is to say the result of an auralization is an aural impression of a source playing inside an existing or non-existing room. Kleiner et al. defined the term auralization as follows [Kleiner, ]: .