Modeling and measuring a Moog voltage-controlled filter

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorPaschou, Effrosynien_US
dc.contributor.authorEsqueda Flores, Fabianen_US
dc.contributor.authorVälimäki, Vesaen_US
dc.contributor.authorMourjopoulos, Johnen_US
dc.contributor.departmentUniversity of Patrasen_US
dc.contributor.departmentDept Signal Process and Acousten_US
dc.date.accessioned2018-12-10T10:24:25Z
dc.date.available2018-12-10T10:24:25Z
dc.date.issued2017en_US
dc.description.abstractThe analog voltage-controlled filter used in historical music synthesizers by Moog is modeled using a digital system, which is then compared in terms of audio measurements with the original analog filter. The analog model is mainly borrowed from D’Angelo’s previous work. The digital implementation of the filter incorporates a recently proposed antialiasing method. This method enhances the clarity of output signals in the case of large-level input signals, which cause harmonic distortion. The combination of these two ideas leads to a novel digital model, which represents the state of the art in virtual analog musical filters. It is shown that without the antialiasing, the output signals in the nonlinear regime may be contaminated by undesirable spectral components, which are the consequence of aliasing, but that the antialiasing technique suppresses these components sufficiently. Comparison of measurements of the analog and digital filters show that the digital model is accurate within a few dB in the linear regime and has very similar behavior in the nonlinear regime in terms of distortion. The proposed digital filter model can be used as a building block in virtual analog music synthesizers.en
dc.description.versionPeer revieweden
dc.format.extent7
dc.format.extent1641 - 1647
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationPaschou , E , Esqueda Flores , F , Välimäki , V & Mourjopoulos , J 2017 , Modeling and measuring a Moog voltage-controlled filter . in Proceedings of the Ninth Annual Conference of the Asia-Pacific Signal and Information Processing Association . IEEE , Kuala Lumpur , pp. 1641 - 1647 , Asia-Pacific Signal and Information Processing Association Annual Summit and Conference , Kuala Lumpur , Malaysia , 12/12/2017 . https://doi.org/10.1109/APSIPA.2017.8282295en
dc.identifier.doi10.1109/APSIPA.2017.8282295en_US
dc.identifier.isbn978-1-5386-1542-3
dc.identifier.otherPURE UUID: 96d013f1-ca32-4e8f-9292-362546e255deen_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/96d013f1-ca32-4e8f-9292-362546e255deen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/27503975/ELEC_Paschou2017_Moog_VCF.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/35167
dc.identifier.urnURN:NBN:fi:aalto-201812106182
dc.language.isoenen
dc.relation.ispartofAsia-Pacific Signal and Information Processing Association Annual Summit and Conferenceen
dc.relation.ispartofseriesProceedings of the Ninth Annual Conference of the Asia-Pacific Signal and Information Processing Associationen
dc.rightsopenAccessen
dc.subject.keywordAudio systemsen_US
dc.subject.keywordmusic technologyen_US
dc.titleModeling and measuring a Moog voltage-controlled filteren
dc.typeConference article in proceedingsfi
dc.type.versionacceptedVersion
Files