Correlation-based amplitude estimation of coincident partials in monaural musical signals

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dc.contributor.authorBarbedo, Jayme Garcia Arnal
dc.contributor.authorTzanetakis, George
dc.date.accessioned2014-07-28T21:21:40Z
dc.date.available2014-07-28T21:21:40Z
dc.date.copyright2010en_US
dc.date.issued2010-07-05
dc.descriptionBioMed Centralen_US
dc.description.abstractThis paper presents a method for estimating the amplitude of coincident partials generated by harmonic musical sources (instruments and vocals). It was developed as an alternative to the commonly used interpolation approach, which has several limitations in terms of performance and applicability. The strategy is based on the following observations: (a) the parameters of partials vary with time; (b) such a variation tends to be correlated when the partials belong to the same source; (c) the presence of an interfering coincident partial reduces the correlation; and (d) such a reduction is proportional to the relative amplitude of the interfering partial. Besides the improved accuracy, the proposed technique has other advantages over its predecessors: it works properly even if the sources have the same fundamental frequency, it is able to estimate the first partial (fundamental), which is not possible using the conventional interpolation method, it can estimate the amplitude of a given partial even if its neighbors suffer intense interference from other sources, it works properly under noisy conditions, and it is immune to intraframe permutation errors. Experimental results show that the strategy clearly outperforms the interpolation approach.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipSpecial thanks are extended to Foreign Affairs and Inter-national Trade Canada for supporting this work under its Post-Doctoral Research Fellowship Program (PDRF).en_US
dc.identifier.citationBarbedo and Tzanetakis. Correlation-based amplitude estimation of coincident partials in monaural musical signals, EURASIP Journal on Audio, Speech, and Music Processing, 2010, 523791en_US
dc.identifier.urihttp://asmp.eurasipjournals.com/content/2010/1/523791
dc.identifier.urihttp://dx.doi.org/10.1155/2010/523791
dc.identifier.urihttp://hdl.handle.net/1828/5486
dc.language.isoenen_US
dc.publisherHindawi Publishing Corporationen_US
dc.titleCorrelation-based amplitude estimation of coincident partials in monaural musical signalsen_US
dc.typeArticleen_US

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