一种单片机语音录入和播放系统设计英文文献3副本.docx
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一种单片机语音录入和播放系统设计英文文献3副本.docx
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一种单片机语音录入和播放系统设计英文文献3副本
Asingle-chipvoiceinputandplaybacksystem
ApplicationofSCMforEmbeddedSystemExperimentaltestofmodernelectronictechnologyisanimportantdirectionofdevelopment.Tothesystemasdevelopmentplatformforvoiceprocessingtechnologycanexperiment,includingvoicerecordingandplayback,voicecompressioncodinganddecoding,voicerecognitionandothercontentdesignedexperiment.Therearetwogeneralwaystodesign:
oneistheMicroprocessorDesign;theotherisbymeansofspecializedvoiceprocessingchips.SCMisoftennotachievesuchacommoncomplexprocessandalgorithms,evenifwemanagetoachievealotofperipheraldevicesalsoincreases.Althoughspecializedvoiceprocessingchipshavemore,butthespecificfunctionofvoiceprocessingchipsrelativelysimple,otherthanintheapplicationofspeechisverydifficult。
1Introduction
Throughthefulluseofprocessorfeaturesitsowncharacteristicsanddevelopmentboardsprovideawealthofperipheralcircuits,constructedthecorrespondingtestandtestedsystem,integratedelectronictechnologytoimprovetheanalysisofexperimentalabilityandpracticalabilityofpositivesignificance.ArticlesforvoiceinputandplaybacksystemisproposedbasedontheapplicationofexperimentalSPCE061ASCMsolutions,hardwareandsoftwaredesignbasedonthecompletedSPR4096PDIUSBD12chipexternalmemoryandexternalUSBdevicesandexpansion,andUSBbetweenSCMandSPR4096communication,toachieveasystemofvoiceinputandplaybackfunctions.
SunplusTechnologyCompanyintroducedavoiceplaybackchipSPCE061Ahardwareconditions,softwarealgorithmsonSunplusoffersalargenumberofvoicefunctionlibraryavailable,whichmakesthevoiceplaybackisveryeasytoimplement.ButSPCE061A-chipFLASHmemoryisonly32K,alargenumberofvoiceresourcesinthebroadcasttheneedsofexpandingmemory.ThispaperdiscussestheuseofSunplusTechnology,Inc.SPR4096asexternalmemoryexpansion,combinedwithSPCE061APlayvoice.WhenweuseSPR4096SunplusEducationCenterthroughthenewResWriteronSPR4096readingandwriting.
SPCE061Aissunplustechnologyr&dandproductionofhighperformancetopriceratioofasite,useitcanbeveryconvenientandflexiblerealizationofvoicerecordingsystem,thechiphas810-bitprecisionADC,whichtransformthewayfortheaudiochannel,andbuilt-inautomaticgaincircuit.Thisprovidesaconvenientvoiceentryhardwareconditions.Two10-accuracyDAC,onlyneedanexternalpoweramplifier(SPY0030A)tocompletethevoiceoftheplay.Doesnotrequirespecializedvoiceprocessingchip,tosimplifycircuitdesignandimproveworkefficiencyisveryeffective.AlsoSunplus16MCUwitheasy-efficientinstructionsetandintegrateddevelopmentenvironment.Inthisenvironment,supportthestandardClanguage,canachieveClanguageandassemblylanguageSunpluscalleachotherandprovideavoicerecordofthelibraryfunction,aslongastheunderstandingoftheuseoflibraryfunction,youcaneasilycompletevoicerecorders,whicharesoftwaredevelopmentprovidesconvenientconditions.
Features:
●16位μ'nSPmicroprocessor;
●Operatingvoltage:
coreoperatingvoltageVDDis~(CPU),I/OportvoltageVDDHtoVDD~(I/O);
●CPUclock:
~;
●Built-2KwordsSRAM;
●Built-in32KFlashROM;
●programmableaudioprocessing;
●crystaloscillator;
●systemisinstandbymode(theclockisstopped),powerconsumptionislessthan2μA@;
●216-bitprogrammabletimer/counter(automaticallypresettheinitialcount);
●210-bitDAC(Digital-analogconversion)outputchannels;
●32-bitgeneralpurposeprogrammableinput/outputport;
●14interruptsourcescanbefromthetimerA/B,timebase,twoexternalclocksourceinput,keywake-up;
●wake-upfunctionswiththetouch;
●useofaudiocodingSACM_S240Sunpluswaybits/seconds),whichcanhold210secondsofvoicedata;
●oscillatorphase-lockedloopPLLsystemclocksignal;
●32768HzRealTimeClock;
●7-channel10-bitvoltage-mode-digitalconverter(ADC)andsingle-channelaudiomodule-digitalconversiondevice;
●soundmodule-digitalconverterinputchannelsbuilt-inmicrophoneamplifierandautomaticgaincontrol(AGC)function;
●haveaserialdeviceinterface;
●Lowvoltagereset(LVR)andlow-voltagemonitoringfunction(LVD)function;
●withinPurchaseOnlineSimulationboard(ICE,In-CircuitEmulator)interfaces
2Structureandprincipleofthehardwaresystem
Systemhardwareincludes:
SPCE061Adevelopmentboard,SPR4096memorymodules,USBD12module,EZ-Probedownloadcable,PCmachine.
Systemusestheofflinemodeofvoiceplaybacksystem.VoicerecorderssetbySPCE061Akeytoachievethedevelopmentboard.Atthesametime,thesystemcanrealizethebasicfunctionsUSB:
USBdevicesthroughmemorychipsintheaudiofilesuploadedtothePCmachine,thesoftwarewillconverttheWAVfilessoundfilesandplaytheminthePCmachine;USBdevicescanalsobethePC,theaudiofilesdownloadedtothememorymodulebykeyselectPlay.
VoiceInputSysteminstitutionspartofthespeechacousticsignalthroughthemicrophoneandamplifierintoacertainrangeoftheanalogsignal,andthentransformthecomputertostore,handlethedigitalsignal.Voicebroadcastsystemisvoicedatastoredinmemorytheorderofremoval,throughtheMCUforD/Aconverteroutput,afterfilteringthroughthecapacitor,torestoretheoriginalaudiowaveform,bydrivingthespeakerplayback.Systemforspeechsignalprocessingisthediscreteanalog(continuous)numberofelementofthesoundwaveform(discrete),tofacilitatedigitalcomputerforprocessing.Thedigitalaudioprocessingincludessamplingandquantizationoftwoparts.AsthesystemusesownA/D,D/AcircuitsforanalogsignalandmicrocontrollerSPCE061Aconversionbetweendigitalsignals,sothemainworkonthedevelopmentofvoiceinputandplaybacksystemprogramdesign,microprocessorandmemorymodulestoconnectandfunctionandtheMCUandUSBmoduletoachieveconnectivityandfunctionalitytoachieve.
Systemhardwareconsistsofthefollowingthreecomponents:
(1)voicerecorderscircuit;
(2)SPR4096(memory)module;(3)PDIUSBD12(USB)module.
Audiocircuitfromtheaudiooutputandaudioinputoftwoparts.Theexperimentwiththeaudiooutputcircuitisbuilt-in2-way10-bitprecisionDAC,onlyanexternalamplifiercircuittocompletethevoiceoftheplay,themaximumoutputpowerupto700mW.SomehaveintegratedaudioinputAudioinputdedicatedADCandAGCamplifier,A/Dconverterwith8channels,oneofwhichistheMIC-INinput,itisdedicatedtothevoicesignalissampled.
SPR4096circuitinthemainbytheResWriterontheprogrammingcircuitandSPR4096SPR4096workingcircuit.SPRmodulereservedforthetwointerfaces,aninterfaceistheEZ-probe,whichisinuseResWriterSPR4096/1024totheprogrammingtoolusedtoconnecttheother10PINemissionlines,mainlytoprovidepowerandconnectionwiththeuseofSPCE061A.SupportSPR4096SPRmodulecircuitandSPR1024,butonlyonechipatthesametimeuse.SPRmodulehastwobasicconfigurations,onefortheboardplusSPR4096chip,anotherchipfortheboardplusSPR1024,andwheninusemustbeequippedwithdownloadcabletouse.
SPR4096isSunplusTechnologyR&Dcost-effectiveproductionofhighperformance512K*8-bitFLASHmemory,andbuilt-in4K*8-bitSRAM.WithBMI(BusMemoryInterface)interfaceSIO(SerialInterface)interfaces.SPR4096offerstwopowersupplyVDDIandVDDQ.VDDIpowersupplyrangeofto,istheinternalFLASHandlogiccontrollerpower.VDDQpowersupplyrangeofto,onlytheI/Oportpowersupply.SPR4096maximumoperatingfrequencyof,themaximumreadcurrentis2mAmaximumerase,burncurrentof6mA.
Characteristics:
●512K*8bitFLASH,256sectors,eachsectorcanberepeatedforthe2K-byte
●Canberepeated20,000timesrewrit
●Undernaturalconditions,thedataretainedfor10years
●4K*8-bitSRAM
●Powerrequirements:
VDDI:
VDDQ:
●Maximumoperatingfrequency:
maximumerase,programmingcurrent:
●maximumreadcurrent:
SPRmoduleCaution:
usethepowersupplymodule,becarefulnottotakeanti-power;modulesmustmeetthedownloadcabletouse;intheuseResWritertheprogrammingtoolSPR4096/SPR1024chipmoduleswhentheneedforSPRpowersupply;notatthesametimeSPR4096SPR1024totheprogrammingwith.
ResWritertoolmainfunction:
SPR1024/4096FlashMemoryrecorder:
ThePCprinterportprogrammingthroughEasyProbeSPR1024/4096,basicoperationsincludingBlankCheck(blankcheck),Erase(deletedata),Read(readdata),Program(burn,writedata),Verify(check,checkiswritteniscorrect);documentintegration:
thenumberofsmalldocumentsintoonebigdocument,astheburningofdataFlash.
Inordertofacilitatetheuseofdata,timetoburndatafilestoindex,sothatyoucanknowwhentousethedatastoredintheaddresswhichyoucanmanipulatefiles.
Voiceresources,takingintoaccounttheactualstorageusage,theindextableincludesfourbytesofaspecificcode,integrateddocumentthestartaddress,endaddress,thetotalnumberofpre-integration,integrationofeachfilebeforestartingaddressendoftheaddress.Theseitemsinorderofpriority.4bytesofaspecificcodefortheSPRW(SunplusReadWrite)theASCIIcode.Themainfunctionofaspecificcodeisreadfromthechip,savethedatabackintothefile,tooluseResWriteropenedfortesting.CodeifthefileexistsinaparticularnoteistheuseofthedatachipburningResWritertools,sofilescanbedisplayedcorrectlyinResWritertool.
USBmodulecircuitfunctions:
(1)Windowssystemconfiguration,enumerationofUSBperipher
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