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Binaural Dark Velvet Noise Reverberator
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en
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8
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Proceedings of the 27th International Conference on Digital Audio Effects (DAFx24), pp. 246-253, Proceedings of the International Conference on Digital Audio Effects
Abstract
Binaural late-reverberation modeling necessitates the synthesis of frequency-dependent inter-aural coherence, a crucial aspect of spa- tial auditory perception. Prior studies have explored methodolo- gies such as filtering and cross-mixing two incoherent late rever- beration impulse responses to emulate the coherence observed in measured binaural late reverberation. In this study, we introduce two variants of the binaural dark-velvet-noise reverberator. The first one uses cross-mixing of two incoherent dark-velvet-noise se- quences that can be generated efficiently. The second variant is a novel time-domain jitter-based approach. The methods’ accu- racies are assessed through objective and subjective evaluations, revealing that both methods yield comparable performance and clear improvements over using incoherent sequences. Moreover, the advantages of the jitter-based approach over cross-mixing are highlighted by introducing a parametric width control, based on the jitter-distribution width, into the binaural dark velvet noise reverberator. The jitter-based approach can also introduce time- dependent coherence modifications without additional computa- tional cost.
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Fagerström, J, Meyer-Kahlen, N, Schlecht, S & Välimäki, V 2024, Binaural Dark Velvet Noise Reverberator. in Proceedings of the 27th International Conference on Digital Audio Effects (DAFx24) . Proceedings of the International Conference on Digital Audio Effects, University of Surrey, Guildford, UK, pp. 246-253, International Conference on Digital Audio Effects, Guildford, United Kingdom, 03/09/2024. < https://www.dafx.de/paper-archive/2024/papers/DAFx24_paper_63.pdf >