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dc.contributor.authorBelloch, José A.
dc.contributor.authorVälimäki, Vesa
dc.date.accessioned2016-10-05T09:46:25Z
dc.date.available2016-10-05T09:46:25Z
dc.date.issued2016-05
dc.identifier.citationBELLOCH, Jose A., et al. Efficient target-response interpolation for a graphic equalizer. En 2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, 2016. p. 564-568.ca_CA
dc.identifier.urihttp://hdl.handle.net/10234/163420
dc.descriptionProceedings of the 41st IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP, held in Shanghai (China) during 20-25 March 2016.ca_CA
dc.description.abstractA graphic equalizer is an adjustable filter in which the command gain of each frequency band is practically independent of the gains of other bands. Designing a graphic equalizer with a high precision requires evaluating a target response that interpolates the magnitude response at several frequency points between the command gains. Good accuracy has been previously achieved by using polynomial interpolation methods such as cubic Hermite or spline interpolation. However, these methods require large computational resources, which is a limitation in real-time applications. This paper proposes an efficient way of computing the target response without sacrificing the approximation accuracy. This new approach called Linear Interpolation with Constant Segments (LICS) reduces the computing time of the target response by 55% and has an intrinsic parallel structure. Performance of the LICS method is assessed on an ARM Cortex-A7 core, which is commonly used in embedded systems.ca_CA
dc.description.sponsorShipThis work was conducted in spring 2015 when the first author was a visiting postdoctoral researcher at Aalto University. This research has been partly funded by the TIN2014-53495-R and TIN2011-23283 projects of the Ministerio de Economía y Competitividad and FEDER.ca_CA
dc.format.extent5 p.ca_CA
dc.format.mimetypeapplication/pdfca_CA
dc.language.isoengca_CA
dc.publisherIEEEca_CA
dc.relation.isPartOfIEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, 2016ca_CA
dc.rights© Copyright 2016 IEEE - All rights reserved.ca_CA
dc.subjectInterpolationca_CA
dc.subjectGainca_CA
dc.subjectEqualizersca_CA
dc.subjectGraphicsca_CA
dc.subjectSplines (mathematics)ca_CA
dc.subjectReal-time systemsca_CA
dc.subjectAcousticsca_CA
dc.subjectlow power processorsca_CA
dc.subjectAcoustic signal processingca_CA
dc.subjectAudio systemsca_CA
dc.titleEfficient target-response interpolation for a graphic equalizerca_CA
dc.typeinfo:eu-repo/semantics/conferenceObjectca_CA
dc.identifier.doihttp://dx.doi.org/10.1109/ICASSP.2016.7471738
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_CA
dc.relation.publisherVersionhttp://ieeexplore.ieee.org/document/7471738/mediaca_CA


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