Specifications

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Zv‐Cliv1_1www.zeevee.com  Page16of26
Syntax
setwatermark‐visual{off|on
}factorydefault:on
AdvancedMPEG2andTransportCommands
CommandsinthissectionshouldonlybeusedifyouhaveastrongunderstandingofMPEG2encoding
managementofprogramstreamsinacableenvironment.
SetAudioDelay
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Syntax
setmpeg2audio‐delay<2..10>factorydefault:5
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Insomedeployments,audiomaynotarrivetotheZvBoxperfectlysynchronized
withthevideo.Whenthis
happens,thepictureontheHDTVwillhavea“lipsync”issue.Thiscommandallowsforskewingoftheaudioto
bettermatchthevideo.
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Eachunitisaframetime.Thedefaultof5isthepropervaluetousewhenaudioandvideoare
synchronizedat
theinputtoZvBox.LowervaluespresenttheaudioearlierattheHDTV.
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Example:
ZvCli$setmpeg2audio‐delay4
Success
SetDCcoefficientprecision
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Syntax
setmpeg2dc‐coefficient‐size{8‐bit|9‐bit|10‐bit
|11‐bit}  factorydefault:10‐bit
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MPEG2encodingdynamicallyproducesaDCcoefficientmatrixwhileencodingvideo.Theprecision(numberof
bitspervalue)usedtotransmiteachvaluetotheHDTVcanbemodified.Thehighestprecisionallowedis11‐
bits.However,wehavefoundthatsome
HDTVswillnotoperateatthatsetting.Inthosecases,nopictureis
displayed!
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Thedefaultsettingof10‐bitworkswitheveryHDTVthatwehavetested.Using11‐bitwillresultina*slightly*
betterpicture,especiallyinverygradualchangesinshade,aswellasdarkscenes.
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Example:
ZvCli$setmpeg2dc‐coefficient‐size11‐bit
Success
SetProgramNumber
Theprogramnumberisaninternallyusedvalue–inalmostallcasesyoudonotneedtodoanythingwithit;just
usethedefault.Theonlytimeitmayneedtobechangedisifthe
streamismultiplexedwithotherstreamsand
thereisaconflict.
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Note–anytimethattheprogramnumberischanged,videoprocessing*mustberestarted*usingthe“system
restart”command.
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