Colours of Velvet Noise

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date

2022-06

Department

Department of Signal Processing and Acoustics
Department of Art and Media

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Language

en

Pages

3
495 - 497

Series

Electronics Letters, Volume 58, issue 12

Abstract

Velvet noise is a sparse ternary pseudo-random signal containing only a small portion of non-zero values. In this work, the derivation of the spectral properties of velvet noise is presented. In particular, it is shown that the original velvet noise is white, i.e. has a constant power spectrum. For velvet noise variants with altered probability of polarity, the spectral characteristics are analytically derived. Crushed additive velvet noise is shown to have potential in the design of coloured sparse noise sequences, which are useful in acoustic signal processing.

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DOI

10.1049/ell2.12501

Citation

Meyer-Kahlen, N, Schlecht, S & Välimäki, V 2022, ' Colours of Velvet Noise ', Electronics Letters, vol. 58, no. 12, pp. 495 - 497 . https://doi.org/10.1049/ell2.12501

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https://urn.fi/URN:NBN:fi:aalto-202206224160

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[article-cris] Sähkötekniikan korkeakoulu / ELEC