Elevation in Wave-Field Synthesis Using HRTF Cues
Authors: Lopez, Jose J.; Cobos, Maximo; Pueo, Basilio
Source: Acta Acustica united with Acustica, Volume 96, Number 2, March/April 2010 , pp. 340-350(11)
Publisher: S. Hirzel Verlag
Abstract:In this paper, spectral elevation cues of Head-Related Transfer Functions (HRTF) are used in conjunction with Wave-Field Synthesis (WFS) to produce the sensation of elevated virtual sources in a realistic way. This approach allows WFS to simulate elevated virtual sources above and below the horizontal plane, counteracting the clear disadvantage of WFS compared to other spatial sound systems that provide elevation with additional loudspeaker arrays, e.g. Ambisonics or 10.2 Surround. Therefore, different elevation filterbanks have been computed from several HRTF databases to obtain pure elevation cues. According to the results of our experiments, the proposed approach is a powerful technique for including elevation effects in common WFS systems without the need for using elevated loudspeakers or changing the reproduction set-up.
Document Type: Research Article
Publication date: March 1, 2010
- Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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