Krell Industries SBP-64X Multiplex, Op-Amp, Oversampling, Polynomial, Samples, Samplingrate, Word

kHz

Theletters usedto representKiloHertz,a measureof frequencyreferencedin thousandsper second.(ex. lldtz = 1000times/sec.)

~z Light EmittingDiodes.

Theletters usedto representMegaHertz,a measureof frequencyreferenced in millionsper second.(ex. 1MHz=1,000,000times/sec.)

MULTIPLEX

In digital audioprocessors,multiplexingdividessourcesignalsbetweenmul- tiple processingcircuits(i.e. DACs,Processors...).It allowsprocessingat higher speedthanthe individualcircuitscandoalone.Thetradeoff to multiplexing the analogdomainis the requirementto reconstruct the completesignal through summing.

OP-AMP

Integratedcircuits usedas OPerationalAMPlifiersDespite.their significant sonic colorations, OP-AMPsareoften usedin audiocomponentsdueto their costeffectiveness.

OPTO-COUPLING Opticallytransferringinformationfromonecircuit to anotherin CD's,DAT's,

andDigitalto AnalogprocessorsOpto. -couplingdoesaddcolorationsto music,but

it is muchless expensivethandesigningmoreadvanced,quietcircuits. Opto-coupling is oftenusedto isolatedigitalnoisefromanalogcircuits.

OVERSAMPLING

Amethodby whichadditionalsamplesare plotted in betweenthe original recordedsamplesin order to increasethe timedomainresolutionof the playback waveform.

POLYNOMIAL

Polynomials,simplystated, are long,highorderequationswhichcanbeused to specifyexactingoversampledpointswhichaccuratelyfollowthenaturalprofileof

amusicalwaveform.

QUANTIZATION

Theprocessby whichanalogmusicis convertedinto digital data.

SAMPLES

Adigital sampleis a quantizedcoordinaterepresentinga specificamplitudeat a specifictime.Thousandsof samplesper secondare quantizedduringrecordingto digitallyrepresenttheoriginalmusic.

SAMPLINGRATE

Thefrequencyat whichanalogdatais sampledin the recordingprocess(ex. SamplingRateof 44. lkHzwhichis usedin recordingCD'srepresents44,100quan- tized samplesper second).

SCALING

In this applicationscalingis a termreferringto theroundingoff of computed numbersdueto the overfiowingof a processor'saccumulatorThis. results in a loss of accuracyin oversampleddatapoints.

SUMMING

Summing,the analogdomain,is a processby whichsectionsof information are reconstructed(summed)after multiplexingandprocessing.

TIMEDOMAIN

In this application,anotherwayof statingthe DigitalDomain.

TRANSIENT

Asignalwhichtravelsfroma lowamplitudeto highamplitudein anextremely shorttime.

WORD

Usedin thedigitalcontext,a wordis a groupof bits andor byteswhichcombine to determinethe sizeof a datapath.