Paper Info
Title
An analytical approach to sound field reproduction with a movable sweet spot using circular distributions of loudspeakers
Abstract
Sound field reproduction methods like higher order Ambisoni cs which are based on orthogonal expansions always introduce a lim- itation of the spatial bandwidth of the secondary source driving function. This spatial truncation creates a sweet spot in th e center of the secondary source distribution. This spot, or rather a rea, is "sweet" both in terms of spatial aliasing artifacts as well a s in terms of accuracy of the desired component of the reproduced wave fi eld. The higher the temporal frequency of the reproduced wave fiel d the smaller is the sweet spot. In this paper we show that the location sweet spot can be moved freely inside the secondary source distri- bution. The accuracy of the actual reproduced wave field is th en significantly higher in the sweet spot than in the same region in the conventional approach.
Year
DOI
Venue
2009
10.1109/ICASSP.2009.4959573
Taipei
Keywords
Field
DocType
acoustic wave propagation,integral equations,loudspeakers,sound reproduction,loudspeaker circular distributions,movable sweet spot,secondary source distribution,sound field reproduction,sweet spot location,Fourier series,Higher order Ambisonics,spatial aliasing,sweet spot
Truncation,Secondary source,Pattern recognition,Computer science,Ambisonics,Bandwidth (signal processing),Aliasing,Fourier series,Artificial intelligence,Acoustics,Loudspeaker,Sound recording and reproduction
Conference
ISSN
ISBN
Citations 
1520-6149 E-ISBN : 978-1-4244-2354-5
978-1-4244-2354-5
6
PageRank 
References 
Authors
0.85
0
2
Name
Order
Citations
PageRank
Jens Ahrens17414.60
Sascha Spors210819.70