資源描述:
《基于DSP的語音信號(hào)的處理.doc》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫(kù)。
1、畢業(yè)設(shè)計(jì)(論文)題目:基于DSP的語音信號(hào)的處理、存儲(chǔ)及回放的系統(tǒng)設(shè)計(jì)系別:電子信息科學(xué)系專業(yè):電子信息科學(xué)與技術(shù)班級(jí):學(xué)生:學(xué)號(hào):指導(dǎo)教師:摘要近年來,在數(shù)字信號(hào)處理領(lǐng)域有著絕對(duì)優(yōu)勢(shì)的DSP技術(shù)得到了迅速發(fā)展,不僅在通信計(jì)算機(jī)領(lǐng)域大顯身手,并已逐漸滲透到人們?nèi)粘OM(fèi)領(lǐng)域。正因?yàn)槿绱?,DSP應(yīng)用越來越得到普遍重視。其中應(yīng)用DSP進(jìn)行語音信號(hào)處理在人們的日常生活更是隨處可見。本文所設(shè)計(jì)的語音處理系統(tǒng)以基于TI公司TMS320C5402定點(diǎn)DSP芯片,ADDA數(shù)據(jù)轉(zhuǎn)換芯片TLV320AIC10的軟硬件設(shè)計(jì)方法,給出了硬件原理圖、軟件設(shè)計(jì)程序。本系統(tǒng)的主要功能是實(shí)現(xiàn)語
2、音信號(hào)處理的處理、存儲(chǔ)和回放。其中處理過程是系統(tǒng)設(shè)計(jì)的核心,信號(hào)輸入前要經(jīng)過混疊濾波再進(jìn)行ADDA轉(zhuǎn)換,最后要經(jīng)過平滑濾波。系統(tǒng)設(shè)計(jì)的主要工作:(1)應(yīng)用TMS320C5402和TLV320AIC10等主要硬件設(shè)計(jì)系統(tǒng)的硬件電路(2)利用匯編語言編寫語音處理、存儲(chǔ)和回放的程序(3)利用設(shè)計(jì)好的軟硬件實(shí)現(xiàn)系統(tǒng)所要求的功能關(guān)鍵字:DSP數(shù)字信號(hào)處理;語音信號(hào);CCS;TLV32AIC10AbstractInrecentyears,thetechniqueofDSPwhichtakesontheabsoluteadvantageindigitalsignalproce
3、ssinghasdevelopedveryquickly.ThetechniqueofDSPplaysaveryimportantroleincommunicationandcomputerfields,andithasalsodevelopedtodailylifeconsumingfieldgradually.Positiveasitdoes,theapplicationofDSPisgivenmoreattentiondaybydayinpublic.Amongthem,itisverycommonthatDSPisappliedtovoicesignal
4、processinginpeople’sdailylife.ThesystemofvoicesignalprocessingwhichisdesignedisbasedontheTMS320C5402pointingchipofTIcompany,theanalog-to-digitalanddigital-to-analogconversionchipwhichisthechipofTLV320AIC10usedtocode,decodethevoicesignalandsoon.Thetheoryfigureofhardware,thesoftwareand
5、soon.Themainfunctionofthissystemistoachievetheprocessing,savingandreturningtoputofthespeechsignal.Andtheprocessingisthecoreofthesystemdesigning.ThesignalisfilteredbeforebeingputupADDAtransforming.Mainworkofthesystemdesign:(1)applyingTMS320C5402,TLV320AIC10etc.stodesignthehardwareelec
6、triccircuitofthesystem(2)applyingassemblelanguagetocompileprogrammetocomeoutthesignalprocessing,saving,andretuningtoput(3)usingthedesignedsoftwareandhardwaretocomeoutthefunctionofthesystemKeywords:DSPdigitalsignalprocessing;speechsignal;CCS;TLV320AIC10第一章目錄第一章概述…………………………………………………………
7、…………………………………11.1DSP的發(fā)展及應(yīng)用……………………………………………………………11.2語音信號(hào)理系統(tǒng)概述…………………………………………………………2第二章DSP芯片介紹………………………………………………………………………………32.1DSP部結(jié)構(gòu)框圖………………………………………………………………………42.2多通道緩沖串口MCBSP……………………………………………………………52.2.1MCBSP結(jié)構(gòu)及工作原理……………………………………………………52.2.2MCBSP串口配置……………………………………………………………62.2.
8、3接收和發(fā)送寄存器RCR