第1页共6页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第1页共6页CO6021/COA002DigitalSignalProcessingHandout812/1/2009byP.C.ChangDSPFinalProjects--2009Project1.Audioequalizer--設計一個可自由調整frequencyresponse之equalizer(等化器),規格如下：(1)samplerate:44.1kHz(2)>20kHzfrequencyresponsesetto0(3)usingIIRfilter,orderlessthan16(4)designauserinterfacetoadjustfrequencyresponse(5)7個等化中心頻率：125,250,500,1k,2k,4k,8kHz(6)–可調範圍10dB~+10dBatanyfrequencyfrom100to10kHz(7)評比標準：perceptualtesting,computationalcomplexity(filtercoefficientcalculationandaudiosignalfiltering),ripple,adjacentchannelresponseerror.使用testaudio1andaudio2(mp3reconstructed)(8)Thereportmustincludetableswiththefollowingitems:1)是否會聽到noise?2)complexity3)ripple4)delay5)自行開發?第2页共6页第1页共6页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第2页共6页Project2.DTMFdetector–designafilterbankwith8BPFsthatcandetectcorrectdigitsrepresentedbyDTMFsignals.Thespecificationislistedasfollows:(1)DTMFgenerationinterface：referredtoDTMFtonegeneratorin“dsptutor”website.http://www.dsptutor.freeuk.com/(2)DTMFsignalformat：input*.wavformatsignalwithsamplingrate44.1kHz.(3)outputinterface：displayshowsthedetecteddigits.(4)UsingIIRorFIRfilter(5)Filterbankspec.：asusedontouchtonephones.(youfindit!)(6)Criteria：accuratedetectionrate.(%)(7)Testpattern：1)DTMFsequencegeneratedbyyourself2)DTMFsequencegeneratedbydsptutorwebsite3)DTMFsequencegeneratedbyatouch-tonetelephoneset.Thereportmustincludetableswiththefollowingitems:1)filtertype(IIR、FIR?)2)filterorder3)overallsystemcomplexity第3页共6页第2页共6页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第3页共6页Project3.Samplingrateconverter--設計samplingrateconverter,規格如下：(1)轉換samplingfrequencyfrom32kHzor48kHz到44.1kHz(2)評比標準：lowcomplexity(lessthan10MIPS*willhaveextracredit),lowmemoryrequirement,transparencyconverter(lowdistortion,highSNR,byperceptualtesting).[Reference](1)“ACourseinDigitalSignalProcessing”,BoazPorat,pp.473–481,1997(2)“AReal-timeMethodforSampleRateConversionfromCDtoDAT”,SangilPark,MotorolaInc.,ConsumerElectronics,1990.ICCE90.IEEE1990InternationalConferenceon,pp.360–361NOTE:(1)*MIPS:MillionInstructionPerSecond(2)TestPattern:Inputsignal:Puretonesignals(100Hz,1kHz,and10kHz)sampledat32kHzand48kHz.OutputReferencesignal:Puretonesignal(100Hz,1kHz,and10kHz)sampledat44.1kHz.SNR=10*log[(outputsignalpower)/(errorsignalpower)]Errorsignal=outputreferencesignal–outputsignal(aftersynchronization)第4页共6页第3页共6页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第4页共6页Project4.Imagescalar--設計imagescalar,規格如下：(1)轉換imagesizefrom352*288and320*240to352*240(2)評比標準：lowcomplexity,lowmemoryrequirement,transparencyconverter(lowdistortion,highPSNR,byperceptualtesting).[Reference](1)“ACourseinDigitalSignalProcessing”,BoazPorat,pp.473–481,1997(2)“ImageandVideoCompressionforMultimediaEngineering:Fundamentals,Algorithms,andStandards”,YunQ.Shi,HuifangSun,1999NOTE:(1)TestPattern:Inputimage:MTF(modulationtransferfunction)(givenMatlabcode)andimagewiththesize352*288and320*240OutputReferencesignal:MTF(modulationtransferfunction)(givenMatlabcode)andimagewiththesize352*240PSNR=10*log[(peaksignalpower)/(errorsignalpower)]Errorsignal=outputreferencesignal–outputsignal(aftersynchronization)第5页共...
