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1、安徽理工大學(xué)畢業(yè)設(shè)計(jì)(論文)摘要伴隨著如今科學(xué)技術(shù)的成熟,人類正加速進(jìn)入電子化和信息化的社會(huì)。而數(shù)字化技術(shù)的不斷發(fā)展、成熟與完善,為發(fā)展新一代的數(shù)字語(yǔ)音采集、處理與分析系統(tǒng)奠定了有利基礎(chǔ)。本論文介紹一種以TI公司的TMS320VC5509A數(shù)字信號(hào)處理器為核心的、以TLV320AIC23為音頻解碼芯片的音頻采集、處理與回放系統(tǒng)。TMS320VC5509A是TI公司生產(chǎn)的一款定點(diǎn)數(shù)字信號(hào)處理器,它具有價(jià)格便宜,運(yùn)算速度快,功耗低等特點(diǎn)。作為核心器件,對(duì)整個(gè)系統(tǒng)實(shí)現(xiàn)總體控制;使用TLV320VC23作為語(yǔ)音解碼
2、芯片,對(duì)輸入的模擬語(yǔ)音信號(hào)經(jīng)過解碼為數(shù)字碼流,。DSP將讀取到的語(yǔ)音數(shù)據(jù)經(jīng)過處理后發(fā)送回TLV320VC23芯片,實(shí)現(xiàn)語(yǔ)音信號(hào)的回放。TMS320VC5509A采用CCS平臺(tái)進(jìn)行開發(fā)和編程,完成整個(gè)采集過程的系統(tǒng)調(diào)度工作,這樣使程序的可讀性和可移植性大大增強(qiáng).本系統(tǒng)與同類系統(tǒng)相比,具有體積小,結(jié)構(gòu)簡(jiǎn)單,成本低,功耗低等特點(diǎn)。關(guān)鍵詞:DSP,TMS320VC5509A,TLV320VC23,數(shù)字語(yǔ)音處理I安徽理工大學(xué)畢業(yè)設(shè)計(jì)(論文)ABSTRACT(頂格)Withthedevelopmentofscience
3、andtechnology,electronicinformationtechnologyintohumansocietyisfast.Whiledigitaltechnologycontinuestodevelop,matureandperfectforthedevelopmentofanewgenerationofdigitalaudiocapture,processingandanalysissystemhaslaidafavorablefoundation.ThispaperintroducesTI
4、'sTMS320VC5509Aasthecore,andTLV320AIC23digitalsignalprocessorforaudiodecodingchipaudiocapture,processingandplaybacksystem.TMS320VC5509AisaTIcompanyproducedafixed-pointdigitalsignalprocessor,ithasacheap,fastoperationandlowpowerconsumption.Asthecoredevice,to
5、achievetotalcontroloftheentiresystem;usingTLV320VC23asthevoicedecoder,decodestheinputanalogvoicesignalintoadigitalbitstream.DSPtoreadthevoicedataisprocessedandsentbacktotheTLV320VC23chip,playbackofthevoicesignal.TMS320VC5509AdevelopmentandprogrammingusingC
6、CSplatform,completetheentireacquisitionprocessscheduling,sothattheprogramcanenhancereadabilityandportabilityandCPLDprogramminginVHDLlanguage,tothelogicalcontrolfunction.Thissystemcomparedwithothersystems,hastheadvantagesofsmallsize,simplestructure,lowcost,
7、lowpowerconsumptionKeywords:DSP,5509A,digitalvoiceprocessing,TLV320VC23II安徽理工大學(xué)畢業(yè)設(shè)計(jì)(論文)目錄摘要................................................................................................................IABSTRACT............................................
8、........................................................II目錄............................................................................................................III1緒論..................................