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Dolby Laboratories DP570 Stereo System User Manual

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Using the DP570 Features Emulator Bypass

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®

DP570 Multichannel Audio Tool User’s Manual 39

Table 4‐6describestheelectricalcharacteristics.

4.14 Emulator Bypass

WhenyouenableEmulatorBypass,thefront‐panelEscbuttonisilluminated.Inthis

mode,theonlysettingsthataffecttheoutputaretheroutersettings.Monitoringoptions

arelimitedtoprogramselection.Ifyouareusingthe

Lt/Rt Input,thatsignalissent,without

decoding,totheLeftandRightemulatoroutputs.Bassmanagementremainsactive.

4.15 Solo Input Mode

TheDP570providesatwo‐channelanaloginputthatcanberoutedtotheanalogoutputs.

Thisinputiscalled 

Solobecausethefeatureprovidesawaytorouteastandardsignalfrom

amixer(suchasthemixer’ssolobusoutput)intothemonitorchain.Thefeaturecanalso

beusefulasageneral‐purposeanalogbypass.

SoloInputmodebypassesthedigitalaudioinputs,andonlythesoloinputs

fromthe

Analog I/O connectoronthebackpanelroutetotheLeftand Rightoutputs.IftheMono

speakeroutputisselected,theinputsignalsaresummedandfedtothe

Monooutput.

The

SoloinputisavailableonlybydrivingtheSoloControllineontheGPI/Oport.TheSolo

Controlline(pin6)islevel‐triggeredandisactiveinthehighstate.Thestatusofthe

Solo

inputdisplaysonthefront‐panel

SoloLEDandisindicatedontheSoloTallyline(pin5)

onthe

GPI/Oport.

4.16 Unity Gain Mode

UnityGainmodedefeatstheaudibleeffectsofdialoguenormalizationwhileallowingthe

dialnormvaluetobeusedinchoosingdynamicrangecontrolsettings.Itisvaluablewhen

theemulatoroutputsoftheDP570arereturnedtotheconsoleforuseasmonitorinputs.

UnityGainmodeisenabledbydefault.

ToturnUnityGainmodeoff:

1. ClickSetupintheMainwindowtoopentheSetupwindow.

2. UnchecktheUnityGainModeboxontheleftsidenearthebottom.

Figure 4‐8showsadetailoftheUnityGainModeboxontheSetupwindow.

Figure 4-8 Unity Gain Mode Box

Table 4-6 Shaft Decoder Signal Electrical Characteristics

Characteristic Min Max

VT+Positive‐goinginputthresholdvoltage 1.2V2.1V

VT–Negative‐goinginputthresholdvoltage 0 .5V1.4V

VHHysteresisvoltage 0.4V1.5V

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