This paper presents a time-domain technique based solely on simple operations, like filtering and scaling, to continuously track a sound descriptor correlated to brightness and pitch. In opposition to existing algorithms this approach does not rely on input framing or frequency-domain transforms, ensuring a better temporal resolution and the possibility to model analog-like implementations. In the first part of the document we present the details of our approach to brightness estimation; then we will compare CoBE to the brightness estimation implemented in MIR Toolbox; we introduce and define the concept of ``Equivalent Brightness Frequency'' (EBF) and finally we show how to exploit CoBE and EBF to obtain a rough monophonic pitch estimator or an efficient pre-processor for zero crossing rate (ZCR) pitch trackers.

Continuous brightness estimation (CoBE) : implementation and its possible applications / G. Presti, D.A. Mauro - In: Proceedings of the 10th International Symposium on Computer Music Multidisciplinary Research (CMMR), Marseille, France, October 15-18, 2013Marseille : Laboratoire de Mécanique et d'Acoustique, 2013 Oct. - ISBN 9782909669236. - pp. 967-974 (( Intervento presentato al 10. convegno International Symposium on Computer Music Multidisciplinary Research (CMMR) tenutosi a Marseille nel 2013.

Continuous brightness estimation (CoBE) : implementation and its possible applications

G. Presti;D.A. Mauro
2013

Abstract

This paper presents a time-domain technique based solely on simple operations, like filtering and scaling, to continuously track a sound descriptor correlated to brightness and pitch. In opposition to existing algorithms this approach does not rely on input framing or frequency-domain transforms, ensuring a better temporal resolution and the possibility to model analog-like implementations. In the first part of the document we present the details of our approach to brightness estimation; then we will compare CoBE to the brightness estimation implemented in MIR Toolbox; we introduce and define the concept of ``Equivalent Brightness Frequency'' (EBF) and finally we show how to exploit CoBE and EBF to obtain a rough monophonic pitch estimator or an efficient pre-processor for zero crossing rate (ZCR) pitch trackers.
brightness estimation; real-time; time domain approach; feature extraction; preprocessing; pitch-tracking
Settore INF/01 - Informatica
ott-2013
http://www.cmmr2013.cnrs-mrs.fr/Docs/CMMR2013Proceedings.pdf
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/239617
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