Dark Velvet Noise
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A4 Artikkeli konferenssijulkaisussa
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Date
2022
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Language
en
Pages
8
192-199
192-199
Series
Proceedings of the 25th International Conference on Digital Audio Effects (DAFx20in22), issue 2022, Proceedings of the International Conference on Digital Audio Effects
Abstract
This paper proposes dark velvet noise (DVN) as an extension of the original velvet noise with a lowpass spectrum. The lowpass spectrum is achieved by allowing each pulse in the sparse sequence to have a randomized pulse width. The cutoff frequency is controlled by the density of the sequence. The modulated pulse-width can be implemented efficiently utilizing a discrete set of recursive running-sum filters, one for each unique pulse width. DVN may be used in reverberation algorithms. Typical room reverberation has a frequency-dependent decay, where the high frequencies decay faster than the low ones. A similar effect is achieved by lowering the density and increasing the pulse-width of DVN in time, thereby making the DVN suitable for artificial reverberation.Description
Funding Information: This research is part of the activities of the Nordic Sound and Music Computing Network— NordicSMC (NordForsk project no. 86892) and has received funding from the European Union Horizon 2020 research and innovation program under the Marie Skłodowska-Curie grant agreement no. 812719. Funding Information: This research is part of the activities of the Nordic Sound and Music Computing Network- NordicSMC (NordForsk project no. 86892) and has received funding from the European Union Horizon 2020 research and innovation program under the Marie Skłodowska-Curie grant agreement no. 812719. Publisher Copyright: Copyright: © 2022 Jon Fagerström et al.
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Citation
Fagerström, J, Meyer-Kahlen, N, Schlecht, S J & Välimäki, V 2022, Dark Velvet Noise . in G Evangelista & N Holighaus (eds), Proceedings of the 25th International Conference on Digital Audio Effects (DAFx20in22) . 2022 edn, 31, Proceedings of the International Conference on Digital Audio Effects, DAFx, Vienna, Austria, pp. 192-199, International Conference on Digital Audio Effects, Vienna, Austria, 07/09/2022 . < https://dafx2020.mdw.ac.at/proceedings/papers/DAFx20in22_paper_31.pdf >