T+A Elektroakustik K 6 user manual Surround sound explanatory notes

Page 9

Surround sound - explanatory notes

General information

The following section is not concerned directly wit

h the

operation of your K6, but is rather intended to explain

some of the terms which arise in connection with su

r

roundsystems.Itisintendedtohelpyouunderstan

dand

exploitthefacilitiesandcapabilitiesofyour

K6tothefull.

Asweallknow,anormalstereorecordinghastwoc han

nels leftandright.Whenstereomaterialisrepr oduced inyourlisteningroom,theentiresoundeventtake splace onanimaginarystagewhichcoversthespacebetwee n thetwoloudspeakers.

Thelistenerisabletolocatespecificsoundevent

 

sover

thewidthofthestage;withgoodrecordingsthere

 

isalso

a slight impression of depth, i.e. behind the speak

 

ers.

Nevertheless, normal stereophonic reproduction alwa

ys

leavesthelistenerisolatedfromtheevent.

 

 

 

Asaresultitisimpossibletorecreatetheexcite

mentofa

live atmosphere, as in a real concert hall, since t

 

he

acoustics of the concert hall are crucially influen

 

ced by

soundreflectionsfromthesideandbackwalls,the

 

floor,

theceiling,andfromobjectsinsidethehall.

 

 

 

The reflected sound comes from any number of direc

 

tions not just from the front. If a sound event i

 

s to be

reproduced with real fidelity, it therefore follows

 

that a

proportionofthesoundmustemanatefromalldirec

 

tions

in the room, that the 'reflections' must be timed a

 

 

ccu

rately, and that they must be generated at a realis

 

tic

level.

 

 

 

Reproducing television sound via a conventional ste

reo

systemisproblematic,becauseitisoftenimpossib

 

leto

locatedialogueonthescreenitself.

 

 

 

Afurtherpointisthatexoticsoundeffectshaveb

 

eenin

useinthecinema since the 1950's, using proper mu

 

lti

channelsound systems. These effects are often cruc

ial

totheoverallimpactofafilm,buttheycannotbe

 

repro

ducedathomewithaconventionalstereosoundsyst

 

em.

Overthelastfewyearssurroundtechnologieshave

 

been

developedwhichmakeitpossibletoexperienceall

 

these

effectswithinthelistener'sownfourwalls,with

theresult

that a far greater simulation of reality is possibl

 

e than

withconventionalstereo.

 

 

 

Foraneffectivesurroundsystemwealwaysrecommen

d

theinstallationofacenterloudspeaker,whichis

installed

below or directly above the TV set. This loudspeake

r

helps greatly in locating particular sound events (

 

espe

ciallydialogue)ontheTVscreenitself.

 

 

 

 

 

 

 

Types of reproduction

The K6 makes available a range of different types of reproduction: multi-channel mode, mono/stereo mode and sound fields.

The surround receiver 'remembers' the setting for e

ach

input, and reverts to the mode of operation which w

as

lastusedwhenyouswitchfromoneinputtoanother

.

 

 

Multi-channel mode (surround)

Mode of operation for the reproduction of multicha

nnel

programmes (e.g. DOLBYPro Logic, DOLBYDIGITAL, dts,etc.).

Adigitalmultichannelsignalisdetectedbyitsencoding method,andthe K6automaticallysetsthecorrectloud

speaker assignment. The current reproduction mode i

s

displayedonthefrontpanelscreen.

 

 

 

For analogueinputsignals thecorrectmodeofopera

 

 

tioncannotbedetectedautomaticallybythedecode

r.

 

In this case the decoder always reverts to Dolby Pr

 

o

Logicdecoding.Ifthesignalisactuallyinadiff

erentform

(stereo,mono seebelow),thenthemodemustbes

 

et

manuallyinsteadofsurroundmode.

 

 

 

 

 

 

 

Dolby Pro Logic II Surround

Inthisprocessseveralindependentsignalchannels

are

recorded using two channels and a special encoding

process.Sincethisprocessonlyrequirestworecord

ing

channels, it is compatible with many picture / soun

d

systems which are already widely in use (CD, video

 

recorder,TVetc.).

 

 

Theinformationisdecodedatplaybacktimeandrep

ro

ducedinthelisteningroomviafour(left,right,

2xsur

round) loudspeakers, although five speakers (with a

n

additional front center speaker) are preferable. Do

lby

Surroundencodedmaterialiscurrentlyavailablemai

nly

inthefilmandvideoarena,recordedonvideocass

 

ettes

and DVDs, but many television programmes are now

beingproducedandtransmittedusingDolbySurround

.

 

 

 

Dolby Digital

Dolby Digital is a digital

 

 

 

multichannel

surround

 

 

 

system

which

was

 

 

 

developed specifically for

 

 

 

spatialsoundreproduction

 

 

 

in connection with cinema

 

 

 

films. The process utilises

 

 

 

five

separate

 

sound

 

 

 

channels:

three

front

 

 

 

channels

(left,

 

center,

 

 

 

right)

and

two

surround

 

 

 

channels.

A

 

sixth

 

 

 

independent bass

effect

 

 

 

channel is also present,

 

 

 

catering for low frequency effects (

LFE). That is why

suchsystemsaresaidtooffer

5.1channels.

 

In comparison with Dolby Pro Logic, Dolby Digital pr

o

videstwoindependentsurroundchannelswhichprovi

de

genuinespatialstereosound,offeringthesamerea

listic

stereoreproductionasprovidedbythefrontchanne

ls.

TheintegralDolbyDigitaldecoderprovidesthemea

nsof

obtainingagenuinedigitalDolbystereocinemapre

sen

tation in your own living room. The discrete digita

l re

cordingprocessandthefiveplaybackchannelsguar

an

tee a very wide dynamic range and accurate spatial

orientation.

 

 

 

 

 

 

Thedynamicrangeisthedifferenceinvolumebetwe

en

the quietest and loudest passages of a recording. T

he

original soundtrack of a film generally features an

ex

tremelywidedynamicrangewhichthe

K6canreproduce

infull.

 

 

 

 

 

 

 

9

Operation

Image 9
Contents V6.0 OrderNo.9103-0264  elektroakustik WelcomeSetting up, using the K6 the first time Basic settings for the K6Operation AppendixPrimary switch Front panel controls and connections Emergency buttons  Sensor  CD / DVD drawerHeadphone socket  Multi-function screenBasic functions F6 remote control handsetSource select Amplifier functionsMain Menu Menu control systemTone control on / off Tone controls treble and bassSubwoofer level LoudnessSurround sound explanatory notes Stereo / Mono mode Dts Digital SurroundModefor stereoreproduction Listening to radio programmes Using the tunerCalling up additional tuner information TunerSetting the reception mode Fine-tuning radio stationsProgram search 89-00Automatic storing of radio programs Autostore Manual storing of radio programsP01 98-00 P01 90-60Clear Clearing erasing ProgramsExchanging two Programs 105-60P07 Change the letter at Inputposition Renaming a ProgramTuner as alarm clock Disc Player Inserting an audio CD Using the Disc Player to play audio CDsCalling up additional CD player information DiscStop Playing a trackPause StopSelecting tracks Creating a playback program for a CDIntegral Playback variant Play A-B Repeat passageScreen RPT ALLOperation Inserting a DVD Using the Disc Player to play DVDsInsert DVD SensorCalling up additional DVD player information DVDDVD 0 Selecting a Chapter Playing a titleOperation Selecting a title Static and single picturesSlow motion SearchCamera angle Switching audio channelsSub-title language Integral Playback variant ScreenRPT Disc Menu Function Alternative operationNAV Audio language Player SetupSubtitle Aspect ratioPlaying MP3 CDs Using the Disc Player to play other mediaAssistant BasicsettingsConfiguration Menu Assistant Menu Auto-setupMain speaker Loudspeaker MenuTone adjust Spk positionSpk balance Loudspeaker Position Menu Loudspeaker Balance Menu FL TRB Tone adjust MenuVideo Norm Menu Standard Video ConfigurationVideo Y/C and Standard Video Cvbs RGB and Standard Video CvbsDigital inputs Inputs MenuTV VCR/TVB STB AUX-AV CalibrationPage FCC Information to the user General notes on setting up the K6Approved usage Class B digital device instructionsSafety notes  Tape Rear panel connections AUX  RC in E2000 VCR / TV B  FM ANT aerial input A Front  A RearTypical wiring diagram Standard arrangement main room Typical wiring diagram Connecting active loudspeakers Adjustments at the TV set Selecting the AV inputSelect the video norm to suit the connected source devices Typical wiring diagrams Source device connection Typical wiring diagram adjacent room operation Device approval and conformity with EC directives Switching the remote control addressCare of the K6 Changing the batteriesGeneral problems Appendix a Trouble-shootingSound problems AppendixPicture problems Problems in DVD / CD mode E S C L E a R Problems in Tuner modeView from outside Appendix B Pin assignmentsDecoder / pre-amplifier ConnectionsOutput stages Tuner

K 6 specifications

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