Towards constant-spread panning for multi-loudspeaker configurations
Towards constant-spread panning for multi-loudspeaker configurations
Amplitude panning, for example Vector Base Amplitude Panning (VBAP), is one of the most widely used methods to reproduce spatial and object-based audio scenes over loudspeakers. It creates, however, a position-dependent perceived source extent, or spread, which is undesirable in many situations. This paper propose an efficient algorithm to generate image sources with exact constant spread for arbitrary loudspeaker layouts. This algorithm is based on a previously proposed approach using convex optimization, but avoids run-time optimization to achieve a complexity very close to VBAP. In this paper, the algorithm is derived for two-dimensional loudspeaker layouts,but it can be adopted to 3D configurations as well.
Franck, Andreas
fa179b73-6a83-4c42-b300-81f1dfe9ef6d
Fazi, Filippo
e5aefc08-ab45-47c1-ad69-c3f12d07d807
March 2019
Franck, Andreas
fa179b73-6a83-4c42-b300-81f1dfe9ef6d
Fazi, Filippo
e5aefc08-ab45-47c1-ad69-c3f12d07d807
Franck, Andreas and Fazi, Filippo
(2019)
Towards constant-spread panning for multi-loudspeaker configurations.
Audio Engineering Society Conference on Immersive and Interactive Audio, , York, United Kingdom.
27 - 29 Mar 2019.
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Conference or Workshop Item
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Abstract
Amplitude panning, for example Vector Base Amplitude Panning (VBAP), is one of the most widely used methods to reproduce spatial and object-based audio scenes over loudspeakers. It creates, however, a position-dependent perceived source extent, or spread, which is undesirable in many situations. This paper propose an efficient algorithm to generate image sources with exact constant spread for arbitrary loudspeaker layouts. This algorithm is based on a previously proposed approach using convex optimization, but avoids run-time optimization to achieve a complexity very close to VBAP. In this paper, the algorithm is derived for two-dimensional loudspeaker layouts,but it can be adopted to 3D configurations as well.
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Published date: March 2019
Venue - Dates:
Audio Engineering Society Conference on Immersive and Interactive Audio, , York, United Kingdom, 2019-03-27 - 2019-03-29
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Local EPrints ID: 429943
URI: http://eprints.soton.ac.uk/id/eprint/429943
PURE UUID: 5c45ecb6-3f18-48d6-b8d9-ccf5451d7c92
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Date deposited: 09 Apr 2019 16:30
Last modified: 13 Jun 2024 01:46
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Author:
Andreas Franck
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