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1、華東師范大學(xué)碩士學(xué)位論文基于內(nèi)容的哼唱式音樂(lè)檢索研究姓名：郭麗惠申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：計(jì)算機(jī)軟件與理論指導(dǎo)教師：呂岳何昕20071101ABSTRACTWiththedevelopmentofdigitalmusictechniqueandtheincreasingofthestoragecapacityofmobiledeviousbowtosearchtheintendedmusicinformationbecomesmorean

2、dmoreimportantNowadayspeopleoftenfindtheintendedsongsbyperformingatextbasedqueryaccordingtothemetadataofthesongs，suchasthetitlenalneartistetcT11ismethodisbasedontheassumptionthatshorttagsorkeywordsareavmlabletoidentifyfi

3、lesinthedatabaseSuchanassumptionrequeststhatpeopleshouldmakethepropertydescriptionandclassi黟theinformatlonintocategoriesinadvanceHoweverthismanualworkcannotmeetthedemandoftherapidgrowingofthemusicdataMoreoverthemanualdes

4、criptioniSerrorproneduetothehighlysubjectiverlatul屯ofpersonalunderstandingandthedifficultiesoftheperceptivedescripfionofmusiccontent，andusersmayforgetthetextdescriptioninformationAconvenientandfriendlymusicretrievalsyste

5、miseagerlydesiredforthemobiledevicesContentbasedretrievaltechniquesallowuserstofindtheimendedsongwithoutthetextdescriptionItsearchesthemusicinformationbythemelody’lyrics。pitchandSOOILQuerybyhumming／singing(QBHS)isoneofth

6、etechniquesthatallowsuse檔tofindasongeventheym吶knowapartofthemelodyOutresearchworkismainlyfocusedonQBHSwhichcanbedividedintothreemodules：featureextractionofthequeryaudio，melodyrepresentationofthemusicindatabase，andthemelo

7、dysimilaritycomparisonContentbasedmusicinformationretrievalbcPomespopularinthesearchfieldHowevermostresearchworkiSbasedonthesymbolicmusicdatasuchasMIDIfewworkhasbeendoneontheretrievalofaudiomusicdatasuchasWAVandN伊3Inthis

8、articlewedesignaquerybyhumming／singingmusicretrievalsystemformobiledevicesthatcansearchbothkindsofmusicdataandmakesthesystemmorepracticableWreproposedanovelpitchdetectionalgoirhtmtoegtractthefeatureofhumming／singingsigna

9、l，and缸provethenoi_serobustnessandresearchefficiencyoftheMIDIbasedsystemAsfortheretrievalofpolyphonicmusicobjeasOV[P3／Wav)，weproposedabaselinesystemwhichemployscomputationalauditorysceneanalysistechniquemusic01Lgetdetecti

10、onGMMbasedsingingvoicedetectionandHMMbasedpitchtracking∞hemeetcWreprovideexhaustiveexperimentaIresultstoshowtheeffectivenessandfe勰ibilitvoftheproposedsystemKEYWORD：MusicInformationRetrievalPitchDetectionMelodyFeatureExtr

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