CLASS"A"
In audiocomponents,Class "A"represents an operatingstate for power
supplies andcircuitry whichis widelyacknowledgedas havingsuperior sonic characteristicsto otherformsof operation.
CLOCKSPEED
Thespeedat whicha processoroperates,usuallyexpressedin MttZ.
COAXIAL
Atypeof cabledesignwherea centerconductoris surroundedbyan insulator whichis thenwrappedwitha metallicshield.
COEFFICIENTS
Numbersusedin highordermathematicalcomputationsIn. generalterms,the lengthof a coefficientis directlyrelatedto the accuracyof thecomputation.
D/A
Digitalto Analogconversion.
DAC
Digitalto AnalogConverterThe.circuit whichconvertsthe digital information (in this case,fromthe
DAT DigitalAudioTape.
DDD
Thesymbol(SPARScode), whichappearson mostCD's,representingPure DigitalRecordingDigital.Recording,DigitalMixing,andDigitalMastering.
DISCRETE
In this text, Discretecircuit designutilizes individualcomponents(i.e. FETs, Transistors...not)IntegratedCircuits.It is generallyacceptedthat correctlyexecuted discretecircuitsare superiorin performancethantheless expensiveIC's.
DITHERING
Ditheringis a processby whichrandomnoise is mixedin withlowamplitude signalscreatedas a byproductof quantizationerrors.Thisdithermasksthe unwanted signalspartiallythroughrandomcancellationandpartiallybyraisingthe noisefloor to envelopthesesignals. Ditheringis commonlyperformedin digital recordingto counterthe quantizationerrors whichcommonlyoccurduringAnalogto Digital processing.
DROPOUT
In this usage,dropout is a termreferringto periodsof silenceduringdigital audioplayback.
DYNAMICHEADROOM
Theability of a componentto correctly duplicatehighspeed,high level transientsignals in excessof thosenormallyencounteredin audioplaybackIf. a componentdoesnot havesufficient DynamicHeadroom,it will either fall short of theactualintensityandaccuracyofthetransient,orit maydistortit.
FIBEROPTICS
Aninterconnectingli~ throughwhichdigital datais transmittedvia a beam
of light .........
HIGHLEVELINPUT
Aninputwhichdoesnot requireextraordinaryamplificationin the preampas do the PhonoMC/MMinputs. Highlevel inputsincludeTape,Tuner,Auxiliary,CD, DAT...
INPUTFILTERING
Afilter usedin theinputto correctanunwantedsignalcharacteristicfroman anticipatedsource.
INSTRUCTIONCYCLE
Aperiodoftimein whicha processorcompletesa singleor seriesofoperati6rls.