Harman Kardon AVR 635 Owner's Manual page 33

OPERATION
• Forprivatelistening, simply placea standard
1/4" stereoheadphone p lugor adaptorintothe
Headphone Jack [] behind the door[] on the
front panel. T hespeakers w ill automatically mute
anda twochannel s tereo signal w ill be sentto the
headphones. TheLower DisplayLine [] willread
l) 0 L BY H : BP, indicating t hatthe headphone
outputis inthe Bypass m ode,andto confirmthat
noprocessing i s beingused.
• Whentheheadphones arein use, y ou maytake
advantage ofthe DelbyHeadphone m odes to bring
addedspaciousness to headphone l istening. Press
the Dolby ModeSelectButton _ or the
SurroundModeSelector[] to cyclethrough the
threeDolbyHeadphone modes to select t he one
thatyouprefen
Surround Mode Selection
Oneof the mostimportant features of theAVR635
is itsabilityto reproduce afullmultichannel surround
sound fieldfromdigital s ources, analog matrix
surround encoded programs andstandald stereo
programs.
Seleclqon of a surround modeisbased on personal
taste, a swellasthe typeof program source matarial
beingused. F orexample, motion pictures or TVpro
grams beaung thelogoof oneofthe malor s urround-
encoding processes, such asDolbySurround o r DTS
Stereo maybeplayed ineither t he DelbyDigital,
Delby ProLogicIICinema, DTSNeo:6Cinema, or
Logic7 Cinema s urround modes, d epending o nthe
source mataual.
NOTE: O ncea program hasbeen encoded withmatrix
surround information, it retains thesurround information
as longastheprogram is broadcast instareo. Thus,
movies w ithsurround sound maybedecoded v iaany
oftheanalog surround modes suchasProLogicII
Cinema, Logic7 Cinema or DTSNeo:6Cinema, when
theyarebroadcast viaconventional TVstafions, cable,
pay-TV andsatallite t _ansmission, inaddihon, a growing
number o f madefoptalevision programs, sports broad-
casts, r adiodramas a ndmusic CDsarealsoproduced
insurround sound, Y oumayviewa listofthesepro
grams atthe DolbyLabelateries Websiteat
w_w.delby, com,
Even when a program is notlisted ascarrying intentional
surround information, youmayfindthatthe PmLogicII,
PmLogicIIx,Logic7 or DTSNeo:6, a ndtheHallor
Theater m odes oftendeliver enveloping s urround pre-
sentations through the useofthe natural information
present i nall stereo recordings.
Surround m odesmaybe changed atanytime by
usingeither t he frontpanel o r remote, control. T o
select a newsurround modef_om the frontpanel,first
pressthe SurroundMode GroupSelectorButton
[] until t he desired majorsurround modegroupsuch
asDelby, D TSor Logic7 isselected. N ext,pressthe
SurroundMode SelectorButton[] to choose the
specific individual surround mode.
Toselecta surround modeusingthe remote, press
the buttonforthemajorsurround modegroupthat
includes themodeyouwishto choose from:Dolby
_, DTSDigital _, DTSNeo:6_]t, Logic7
41_, Stereo_ or DSPSurround qi_. Thefirst
pressof the buttonwillshowthe current m odef_om
thatgroupif it is already inuse,or the firstavailable
modeif youarecurrently using another m ode.To
cyclethrough the available modesinthatgroup,
pressthe buttonagainuntilthe desired modeappears
inthe Lower DisplayLine [] andthe on-screen
display andinthe front-panel SurroundMode
Indicators_J.
TheDolbyDigital, D olbyDigital E X,DTS5.1, DTSES
Matrix andDTSESDiscrete modesmayonlybe
selected whena digitalinputis in use.inaddition,
whena digitalsource is present, t heAVR635 will
automatically select a ndswitch to the correct m ode,
regardless o f the modethathasbeenpreviously
selected. F ormoreinformation on selecfing d igital
sources, seethe Digital A udioPlayback s ectionbelow.
Whenthe6 ChanneVS C hannel directinputsarein
use,thereis nosurround processing, astheseinputs
taketheanalog outputsignals froman optional, exter
nalDVDAudioor SACD player, o r another s ource
device andcarrythemstraight t hrough to thevolume
control w ithoutanyfurther d igital p rocessing.
Tolisten to a program intraditional two channel
stereo, u sing the frontleftandfrontrightspeakers
only(plus the subweefe_, if installed a ndconfigured),
presstheStereo ModeSelectButton d_) until
SU RIR0 U N]) 0 F F appears i nthe LowerDisplay
Line [] From thefrontpanelpress theSurround
ModeGroupSelector[] until t heStereo modes
appear i nthe on-screen display a ndLowerDisplay
Line [] Next, p ress the SurroundModeSelector
Button [] untilS UIR R 0 UN D 0 F F appears i n
theon screen display andLower DisplayLine _'_lj,
Digital Audio Playback
Digital audioisa major a dvancement overolderanalog
surround p rocessing s ystems, it delivers u pto sixdis
crete channels, andeachchannel reproduces fullfre
quency {ange(20Hz to 20kHz) a ndoffers dramatically
improved d ynamic r ange andsignificant improvements to
signal-to noise ratios. I naddition, digital systems h avethe
capability to deliver anadditional channel thatisspecili-
cally devoted tolowfrequency i nformation. Thisisthe
".1"channel referred t o whenyouseethesesystems
described a s"5.1/'"6.1"or "7.1."Thebass channel is
separate f romtheotherchannels, butsince it is inten-
tionally bandwidthdimitad, sound designers h avegiven it
thatunique designation. Whena Digital s oundtrack i s
playing, the number o f channels a vailable willvary
accolding to thewayin whichthe program was
recolded. A lthough mostmovies recorded withdigital
soundhave5.1 soundtracks, somehave6.1 or 7.1
sound,whileothersretain the original 2.0 or even
monaural sound. W henthe program sourceisa
broadcast, cableor satellite delivered digital p rogram,
onlyonetypeof soundl_ack maybe delivered at a
time,whileoptical s ources suchas DVD mayprovide
morethanoneaudiooption,Ineithercase, t he deci
sionof whattypeof sound trackandhewmanychan
nels to offeris up to the program's p reduceL W iththe
AVR635 youareableto not onlyplaybackthe erigi
nalcompatible d igital f ormat,but using the processing
power of theTexas Instruments DSPprocessor it is
possible to decode the basicdigital t _ack for 2.0 or
5.1 sound andthenselect a n additional "post-pro
cessing" modeto deliver a dditional channels.
DolbyDigital
Dolby Digital isa standald partof DVD, andisavailable
on specially e ncoded L Ddiscs andsatellite b road
casts andit is apartd thehighdefinifion t elevision
(HD_ system.
An opSonal, external R Fdemodulator is required to
usetheAVR635 to listen to the DoibyDigital s ound-
tracksavailable on laserdiscs. C onnect t he REoutput
of the LDplayer to thedemodulator andthenconnect
the digital o utputof the demodulator to theOpticalor
CoaxialInputs I'_1"_11_ _t of theAVR635. No
demodulator is required forusewithDVDplayers or
DTSencoded laserdiscs.
Inorderto provide maximum playback c ompatibility
withDVDs, the AVR635 receiver w ill always default
firstto the playback m odeembedded ina disc'sdigital
"flag"information. ForDolbyDigital d iscs, t he following
playback m odes areinillally selected affertheAVR
locksto the incoming digital a udiodatastream to
identify t he selected:
• Whena 5.1 audiostream is detected, t he Dolby
Digital 5 .1 format w ill beselected, r egardless o f the
number o f speakers i nyoursystem, i n compliance
withDolbyLaboratories licensing requirements.
• Whena discwiththe DolbyDigital E X formatflagis
played, y oursystem willautomatically switchto the
EXmodewhenseven mainchannel speakers a re
available,
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