AAERT CER ACTUAL EXAM QUESTIONS WITH CORRECT ANSWERS 100% VERIFIED GRADED A+

AAERT CER ACTUAL EXAM
QUESTIONS WITH CORRECT
ANSWERS 100% VERIFIED GRADED
A+
Methodsmofmaudiomrecordingm-mCORRECTmANSWERmAnalogmandmdigital



Microphonem-
mCORRECTmANSWERmConvertsmacousticalmenergymthatmismsoundmintomelectricalmsignalmthatmcanmb


emdeliveredmtomeithermanmanalogmormdigitalmdevice



Pathmofmdigitalmaudiom-
mCORRECTmANSWERmTomchangemthemanalogmsignalmtomamdigitalmsignalmitmwillmneedmtompassmthroug


hmanmanalogmtomdigital

converterm(digitalmmixermormA/Dmconverter)



Samplemratem-
mCORRECTmANSWERmNumbermofmsamplesmtakenmeachmsecondmwhenmrecordingmsound.m(44.1mkHz


,m48mkHz,metmcetera)



Bitmratem-
mCORRECTmANSWERmthemnumbermofmbitsmtransferredmormreceivedmpermunitmofmtimem(usuallym16mo


rm24mbits)



Lowmsamplingmratem-mCORRECTmANSWERmApproximation



Highmsamplingmratem-mCORRECTmANSWERmSmooth

, DigitalmmixermormA/Dmconverterm-
mCORRECTmANSWERmThemdigitalmmixer,mormA/Dmconverter,mwillmoutputmthemsignalmthroughmonemof


mamvarietymofmconnectionsmsuchmasmUSB,mFireWirem(IEEEm1394),mserial,mlocalmcomputermbus,mormEt


hernet.



DynamicmMicrophonem-mCORRECTmANSWERm(Movingmcoil)m-
mmademupmofmdiaphragm,mamcoil,mandmammagnet.mAsmacousticalmenergymhitsmagainstmthemdiaphrag


m,mwhichmismamflatmplatematmthemfrontmofmthemmicrophone,mitmcausesmthemcoilmthatmismattachedmtom
itmtommovembackmandmforthmovermthemtopmofmthemmagnet.mThemmovementmofmthemcoilmovermtopmo
fmthemmagnetmcreatesmanmelectricalmsignalmwhichmtravelsmthroughmthemwiresmwithinmthemmicroph
onemandmeventuallymreachesmyourmdigitalmmixermormA/Dmconverter.



CondensermMicrophonem-
mCORRECTmANSWERmConsistsmofmamfrontmplatem(diaphragm),mbackmplate,mandmam48-


voltmpowermsource.mThemfrontmandmbackmplatemtogethermcreatemamcapacitor.mWhenmacousticalmen
ergymhitsmthemfrontmplatemofmthemcapacitor,mthemdistancembetweenmthemfrontmandmbackmplatemcha
nges.mThemgapmbetweenmthesemtwomplatesmismelectricallymcharged.mThismchargemismcreatedmbymeit
hermanminternalmbatterymsourcemormanmexternalmpowermsourcemreferredmtomasmphantommpower.



Shouldmyoumusemmicrophonesmwithmbatteries?m-
mCORRECTmANSWERmNo.mIfmambatterymwouldmdiemduringmuse,myoumcouldmhavemamgapminmyourmreco


rding,mandmyoumwouldmneedmtominterruptmthemeventmyoumaremreportingmtomfixmthismproblem.



DigitalmmixersmandmA/Dmconvertersmactmasm-
mCORRECTmANSWERmPhantommpowermsourcemformcondensermmicrophones




Biggestmdifferencembetweenmdynamicmandmcondensermmicrophonesm-
mCORRECTmANSWERmThemwaymbymwhichmacousticalmenergymismtransformedmintomelectricalmenergy


,monemassistedmbymanmelectricalmsourcemandmthemothermbymammagnet.mBothmaremcapablemofmfacilita
tingmamqualitymaudiomrecordingmandmaremrecommendedmformuseminmthemfieldmofmdigitalmreporting.



Pickupmpatternm-mCORRECTmANSWERmSetmpathminmwhichmammicrophonemwillminterceptmsound