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dc.contributor.authorTarrés Ruiz, Francisco
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.identifier.citationTarres, F. Score extraction usign MPEG-4 T/F partial encoding. A: Mediterranean Electrotechnical Conference. "Proceedings of the 10th Mediterranean Electrotechnical Conference". Lemesos: Institute of Electrical and Electronics Engineers (IEEE), 2000, p. 508-511.
dc.description.abstractThis paper describes the preliminary work in the development of an MPEG-4 audio transcoder between the time/frequency (T/F) and the structured audio (SA) formats. Our approach consists in not going from T/F format through to waveform data and back again to SA, but extracting the score information from an intermediate stage. For this intermediate form we have chosen the input of the filterbank and block switching tool, which consists of frequency data. This data is the result of windowing and applying the modified discrete cosine transform (MDCT) to the signal. The size of the window to be used is determined in a frame-by-frame basis by a psychoacoustics analysis of the data. In this paper we show that this approach is feasible by developing a system which extracts the score information from the filterbank and block switching tool output in a MPEG-4 T/F encoder by adapting and fine-tuning some existing processing techniques.
dc.format.extent4 p.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació
dc.subject.otherPattern recognition
dc.subject.otherAudio coding
dc.subject.otherTime-frequency analysi
dc.subject.otherDiscrete cosine transforms
dc.subject.otherDigital filters
dc.titleScore extraction usign MPEG-4 T/F partial encoding
dc.typeConference report
dc.contributor.groupUniversitat Politècnica de Catalunya. DMAG - Grup d'Aplicacions Multimèdia Distribuïdes
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
upcommons.citation.authorTarres, F.
upcommons.citation.contributorMediterranean Electrotechnical Conference
upcommons.citation.publicationNameProceedings of the 10th Mediterranean Electrotechnical Conference

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