實(shí)時(shí)音頻處理模塊的設(shè)計(jì)與數(shù)據(jù)恢復(fù)機(jī)制的研究.pdf

1、⑧天畢大謦碩士學(xué)位論文帥J●●_■L■■■■_I●_■●■1■_■■●■■■■■■，■■學(xué)科專業(yè)：通信與信息系統(tǒng)作者姓名：黃津指導(dǎo)教師：侯春萍教授工甚岳芒當(dāng)Z“tr舞號(hào)產(chǎn)R白ABSTRACTInrecentyears，withthedevelopmentofcommuniemiontechnologyallkindsofmultimediaservicesgrowprosperouslyThesenewbusinessessupplyu

2、serswitIlflexibleandvarioussevicesSpeciallymultimediastreambasedonvideoandaudioisbecomingmoreandmorepopularAtthesarnetimefamilynetworkproductstendtowardsdiversificationandInformationAppliancewillbecomethenewcampaignofman

3、ufacturerDesignedtohandlenon—realtimedatatraffic，InternetCanonlyprovide“best—effort”servicewhichcannotsatisfytheQualityofServicerequirementforcarryingvedioandaudio，HowtoimproveitsrealtimecapabilitySOthatQoSofcommunicatio

4、ncallbeguaranteedisacriticaltechniqueissueandoneofthetechniquedifficultyThisthesisisfocusedonthein—depthresearchofMP3frameandcodecandproposesaDewconceptofdatarecoveryinrealtimesystemindetailThepaperfirstgivesabroadovervi

5、ewofthetechniquebackgroundandfuturedirectionsoffamilymultimediasystemThenthecriticalprotocolsofrealtimesystem，includingsiPSDPSAPandRTP／RTCPareanalizedBecausethereexistsdependencyrelationshipbetweentheMP3frames，MP3fileisn

6、’tsuitableforreal—timetransmissionBasedOntheindepthresearchofMP3technologythepaperdesignamethodthattransformMP3frameintoApplicationDataUnit(ADO)，whichissuitableforreal—timetransmissionAtlastpaperaddinterleavingtechnology

7、inordertoinproveerrorcorrectionThewholedesignschemeisgiveninthethesis，includinghardwareplatformandsoftwarearchitectureEveryfunctionmoduleisanalyzedandtheaudiomoduleisimplementedInthetestprocess，twomethodswereadoptedOneis