外文翻譯--ISD4004語音芯片在語音報站器中的應(yīng)用.doc

ISD4004voicechipvoicestopinthebrowserapplicationAbstract:ISD4004voicechipseriesaretheUnitedStatesISDintroducedproducts,withmultiplerepeatplayback,storagetime,whenusedwithouttheexpansionofmemory,peripheralcircuitsrequiredforfeaturessuchaseasy.IntroducedinthevoicechipISD4004stopdeviceinapracticalapplication,andexplainsitsfunctionanduseofmethods,thusenablingreaderstovoicechipISD4004seriesusetohaveapreliminaryunderstanding.Keywords:ISD4004single-chipvoicestopbrowserISD4004voicechipISDarefromtheUnitedStateslaunchedthenewproducts.Onthevoicechippindescriptionoftheinternalcircuit,etc.,itiseasyintheISDchipinformationprovidedbythecompanyfound,Iwillnotdescribetoomuch,onlyabriefintroductiontoitscharacteristicsmakeone.Withordinaryrecording/playbackchipcompared,ISD4004hasthefollowingcharacteristics:First,therecorddoesnotsoundparagraphlength,andsoundrecordingsdonotneedA/Dconversionandcompression；Secondly,asafastflashstoragemedium,thatis,withoutpowersupplydatacanbestoredforupto100years,morethan10,000duplicaterecords；Inaddition,ISD4004hasrecordedalongtime(upto16minutes,thepaperusedforthe8-minuteISD4004voicechip)advantages；Finally,ISD4004hasrequiredthedevelopmentandapplicationofperipheralcircuitsoftheadvantagesofeasy,Thisisevidentfromtheintroductionofthisarticlereportedthatstationsinthevoicebrowsercanbeofpracticalapplicationexperience.SoundStation1hardwarecircuitdesignCurrentlyonthemarketstoptheflowofvoice,andmostlynotusedISD4004seriesofchips,whichwereintroducednotlongago,aswellasitshighprice-related.However,withthenumberofapplications,aswellasISD4004pricedrop,coupledwiththeISD4004seriesofchipshavingtheadvantage,itisbelievedthatthevoicebrowsertousestopISD4004seriesvoicechipsareentirelyfeasible.Idesignedthedeviceshardwarecircuit,andaBoarddebug,andachievedsatisfactoryresults.Figure1stophardwarecircuitconnectiondiagramThisarticlediscussesvoicestopdeviceisinstalledinthecarmeanstheplaybackcircuit,doesnotincludetherecordingcircuit.Inpracticalapplication,therecordingcircuitiscompletedstopthecontentsoftherecording,andrecordedcontentisstoredintothevoicechip.Inthispaper,combinedwiththeISD4004playbackcircuitISD4004introducetheuseofatypicalapplication.Thisarticlediscussesthebrowserstopmaincircuitmainlybysingle-chipmicrocomputer89C52andconstituteISD4004.Thissystemismainlydividedintothreeparts:single-chipcontroloftheplaybackpartanddisplaypart.DisplaycircuitusedbyP3.0,P3.1tocontrolthetwoparagraph7ofthestaticdigitaltubedisplay,andIshallnotdetail；controlpartconstitutedmainlybythe89C52single-chipthatcontainsthenecessarykeyscircuit,resetcircuitandperipheralcircuits,suchaswatchdogcircuit；playbackfromISD4004constitutesomeofthemajor,includingsupportingthePSAcircuit,poweramplifiercircuit.FromFigure1canbeseen89C52andfewerconnectionsbetweentheISD4004.MCUP1.0P1.3pinaccessbuttons,controldevicesstopthecourseoftheirworkwhetherornotreleasethecontentsoftoneplayback；P1.6accesstheISD4004chipselectpin/SS,controlwhetherISD4004strobe；ISD4004thenP1.7serialinputpinMOSI,readfromthepintotheaddressofplayback；P3.0andP3.1tocontroltheexternaldisplaycircuit,inanewspaper,thecourseoftheirworkstationdevicedisplaysthecurrentnumberofstations；P3.2andP3.3,respectively,thenISD4004-pinserialclockSCLKandinterruptpin/INT.ISD4004chipsneededtoconnectaudiosignalsareoutputpinsAUDOUT,thepinthroughafiltercapacitorconnectedwiththespeaker；AMCAPtoautomaticallymuteend,throughtheuseofonegroundedcapacitor.Inaddition,becauseoftheworkofISD4004voltage3V,whilethesingle-chipsupplyvoltagerequiredforthe5V,thereforebenecessarytoadopt3VvoltagetransformercircuitforuseISD4004.2SoftwareDesignElectriccircuits,thefirsttocompletetheinitializationprocedure,andthenquerythestatusbuttontoentersystemstandbymode.Ifyouhavepressthebutton,thenturntotheimplementationofthekeypointtotheworkprocedures.Keysincludingtheplaybackbuttonandstopbutton,plus1key,minusonekeyandspecialkeywords.Inthestandbymode,iftheplaybackbuttonispressedthefirsttime,theprogramwillbethefirsttojudgeareorgobackto(thegeneralpathofthebusarenotonlygofurtherback),andthecorrespondingindicatorlightautomaticallyreadoutthefirststopplaybackofthecontent,StationNo.1show.Ifitisnotthefirstpress,thenthefirststationtodeterminethecurrentnumber,andthestationnumberisbasedonaccesstostoredcontentplaybackatthestationandthefirstaddress；thencallsubroutineplayback,readaccesstothesiteinfrontofthecontentsofthefirstplaybackAddresstobeginplayback.Eachsentenceafterplayback,ISD4004interruptpin(25feet)willbeautomaticallysenttoonelow-levelsignals.Inhardwaredesign,thepinandtheMCUP3.3connection,sowillcauseaninterruptionintheinterruptionsubroutine,thereisadisruptionRecordthenumberofcounters,whichdeterminewhentheendofthecurrentStation1,StationPlustogetherRefreshdisplay.Addonebuttonpress,theproceduresforthenextshiftplaybackcontent；minusonekeypress,aftertheprocessisturnedonplaybackthecontentofonestation,thecorrespondingstationnumberdisplaywillalsorefresh；speciallanguagekeypressaftertheproceduretotheimplementationofthespeciallanguageplayback(forexample,turningPleasenoteandotherstatements)；stopkeypress,wouldsuspendthecurrentplaybackstatus.ISD4004inordertofacilitatethereadersunderstandingoftheapplication,thispapersomeoftheprocedures.Partoftheproceduretocompletethemainplaybackoperation,togettheaddressofthecontentplaybacktotheISD4004,thecompletionofplayback.PLAYACALLPOWERUPsACALLDELAY25fNolaterthan25msCLRP1.64MOVPLAY2YMOVA8ACALLSENDinecalltosendtheaddressMOVAtACALLSENDISD4004語音芯片在語音報站器中的應(yīng)用摘要：語音系列芯片是美國公司推出的產(chǎn)品，具有可多次重復錄放、存儲時間長、使用時不需擴充存儲器、所需外圍電路簡單等特點。介紹了芯片在語音報站器中的一個實際應(yīng)用，并說明了其功能和使用方法，從而使讀者對系列語音芯片的使用有個初步的了解。關(guān)鍵詞：ISD4004單片機語音報站器語音芯片是由美國公司推出的新產(chǎn)品。關(guān)于該語音芯片的引腳說明以及內(nèi)部電路等，很容易在公司提供的芯片資料中查到，筆者就不進行過多的描述，只簡單地對其特點做一介紹。與普通的錄音重放芯片相比，具有如下特點：首先，記錄聲音沒有段長度限制，并且聲音記錄不需要轉(zhuǎn)換和壓縮；其次，將快速閃存作為存儲介質(zhì)，無需電源即可保存數(shù)據(jù)長達年，重復記錄次以上；此外，具有記錄時間長（可達分鐘，本文采用的為分鐘的語音芯片）的優(yōu)點；最后，的開發(fā)應(yīng)用具有所需外圍電路簡單的優(yōu)點，這一點從