Yamaha DSP-AX757SE owner manual Editing Sound Field Parameters

Page 81

EDITING SOUND FIELD PARAMETERS

What is a sound field

 

Changing parameter settings

What really creates the rich, full tones of a live instrument are the multiple reflections from the walls of the room. In addition to making the sound “live”, these reflections enable us to tell where the player is situated, and the size and shape of the room in which we are sitting.

■Elements of a sound field

In any environment, in addition to the direct sound coming straight to our ears from the player’s instrument, there are two distinct types of sound reflections that combine to make up the sound field:

Early reflections

Reflected sounds reach our ears extremely rapidly (50 ms

–100 ms after the direct sound), after reflecting from one surface only – for example, from the ceiling or a wall. Early reflections actually add clarity to the direct sound.

Reverberations

These are caused by reflections from more than one surface – walls, ceiling, the back of the room – so numerous that they merge together to form a continuous sonic “afterglow”. They are non-directional, and lessen the clarity of the direct sound.

Direct sound, early reflections and subsequent reverberation taken together help us to determine the subjective size and shape of the room, and it is this information that the digital sound field processor reproduces in order to create sound fields.

If you could create the appropriate early reflections and subsequent reverberations in your listening room, you would be able to create your own listening environment. The acoustics in your room could be changed to those of a concert hall, a dance floor, or virtually any size room at all. This ability to create sound fields at will is exactly what YAMAHA has done with the digital sound field processor.

You can enjoy good quality sound with the factory preset parameters. Although you do not have to change the initial settings, you can change some of the parameters to better suit the input source or your listening room.

 

4

5

2

 

3

1

1Press AMP.

AMP

2Turn on the video monitor and

press ON SCREEN repeatedly

ON SCREEN

DISPLAY

to select the full display

 

mode.

 

3Select the sound field program you want to adjust.

1

2

3

4

5

6

7

8

9

0

10

ENT.

Program No.

Program name

P04 MOVIE THEATER

Cursor .

;;;;0dB ;;15ms ;;1.0 ;;20ms ;;1.0

Parameters

Parameter values

INFORMATION

ADDITIONAL

 

 

English

 

 

 

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Contents DSP-AX757SE AV Amplifier Special Instructions for U.K. Model For U.K. customersContents Built-in 7-channel power amplifier FeaturesSound field features Other featuresInstalling batteries in the remote control Supplied accessoriesGetting Started Slide the cover back until it snaps into placeFront panel Controls and FunctionsSpeakers A/B Input ModeStraight Effect FM/AMRemote control Using the remote control Front panel display 96/24 indicator Sleep indicatorLFE indicator Input channel indicatorsAC Outlets Rear panelSpeaker placement Speaker SetupSpeaker connections 10 mmRed positive + Black negative Right Left Subwoofer System Presence speakersRight Left Front speakers a CenterCenter terminals Front terminalsSurround terminals Subwoofer jackConnections Before connecting componentsConnecting video components Connections for DVD playbackVideo Monitor Connecting to the Multi CH Input jacks For 6-channel inputExternal decoder Video AUX jacks on the front panel Connections for other video componentsUse these jacks to connect any video source, such as a DVD recorder Or VCRConnecting audio components Connecting a turntableConnections for audio components Front PRE OUT jacks Connecting to an external amplifierSurround PRE OUT jacks Center PRE OUT jackGround GND terminal Indoor FM antenna IncludedAM loop antenna includedConnecting the AC power cord Connecting the power supply cordAC Outlets Switched Memory back-upTurning on the power Speaker impedance settingPress STANDBY/ON to turn off the power Press Straight Effect repeatedly to select 4 ! MINIntroduction Optimizer microphone setup Auto SetupChecks and adjusts the sound level volume of each speaker Optimizer microphone positionStarting the setup AutomenuAutocheck Error If an error screen appearsResultexit Press j / i to switch between warning messages For details about each message, seeExample screen Errors during auto setup Troubleshooting for auto setup procedure Before auto setup3LEVEL Error 1OUT of Phase2OVER 24m Cause RemedyPlayback Adjust the volume to the desired output levelBasic operations Select the input sourceTo listen with headphones To adjust the toneSelect a sound field program if desired Silent CinemaSelecting Multi CH Input Selecting sound field programsFront panel operation Playing video sources BackgroundEnjoying multi-channel software Remote control operationAuto Auto Decoders select with jWhen you select the SUR. Standard program Press Select on the remote control to select the decoderWhen you select the SUR. Enhanced or Movie Theater program Enjoying 2-channel software in surroundTo cancel, press Pure Direct again Indicator around the front panel button lights upThis adjusts the level of compression Listening to high fidelity stereo soundDownmixing to 2 channels Listening to unprocessed input signalsPress Straight to select Straight Virtual Cinema DSPSelecting input modes Press Input Mode to select an input modeDisplaying information about the input Source Press StraightFlg RateAutomatic and manual tuning FM/AM Tuning RX-V757 onlyPress PRESET/TUNING l / h once to begin automatic tuning Press FM/AM to select the reception bandManual tuning Presetting stationsAutomatically presetting FM stations Hold down the button toAutomatic preset tuning options Manually presetting stationsPress and hold Memory MAN’L/AUTO FM for more than 3 seconds Tune into a stationPreset number Selecting preset stationsShows the displayed station has been stored as C3 Repeat steps 1 to 5 to store other stationsSelect preset station E1 Exchanging preset stationsSee Selecting preset stations Press and hold PRESET/TUNING Edit for more than 3 secondsReceiving Radio Data System stations Changing the Radio Data System mode PTYFrequency display CH u / d on the remote control to select Press PRESET/TUNING l / h or PresetControl to begin searching all preset Radio Desired program typeEON function To cancel this functionRecording Special considerations when recording DTS softwareFor movie/video sources Sound Field Program DescriptionsStereo MusicSound Field Program Descriptions Entertainment For music sourcesSUR. Standard SUR. EnhancedSelecting the OSD mode Using the sleep timer Advanced OperationsP04 Movie Theater Press j / i to adjust the speaker output level Canceling the sleep timerPress Enter when you have completed your adjustment Control range is from +10 dB to -10 dBManual Setup Auto SetupSET Menu Sound MenuOption Menu Signal InfoPress u / d to select Manual Setup Using SET MenuPress Enter to enter Manual Setup To exit, press SET Menu when finishedFront SP Sound Menu 1/2Center SP SUR. L/R SPPresence SP SUR. B L/R SPLFE/BASS OUT Cross OverSubwoofer phase Subwoofer Phase 02ASUBWOOFER PhasePriority Presence/Surround back channel priorityDequalizer CSP DistanceGaudio SET Elfe LevelFdynamic Range CMPNT-V Input Input MenuOptical OUT OpticalInput mode Binput Mode Binput ModeVolume Trim D Volume Trim Cinput RenameOption Menu Adisplay SETBmemory Guard CPARAM. INI Speaker B setting SP BDmulti Zone SET Parameter initialization CPARAM. INIAdvanced Setup Menu Advanced Setup menu is displayed in the front panel displayPress STANDBY/ON to confirm your selection Factory presets Preset Advanced Setup menu itemsSpeaker impedance SP IMP Remote RemoteFixing the remote to AMP mode Remote Control FeaturesControl area Controlling this unitRemote Control Code Default Settings Setting remote control codesVOL DVD player Controlling other componentsDigital TV LD player CD player TunerPress Learn using a ballpoint pen or similar object Programming codes from other remote controlsLearn is displayed To 10 cmPress RE-NAME again to exit from the renaming mode Press RE-NAME using aChanging source names in the display window Object Press u / d to select and enter a characterPress u / d to select the clear mode Press Clear by using a ballpoint pen or similar objectPress Clear to exit from the clearing mode Clearing function setsClearing a learned function Clearing individual functions Zone 2 RX-V757 only System configuration and connections example Zone 2 connections This unitUsing this unit’s internal amplifier Remote controlling ZoneTo enable Zone 2 mode on the remote Control Remote control will be able to operate this unit and ZoneTurning this unit to either on or standby Press Select k/n to exit from the Zone 2 modeSpecial considerations for DTS software For DVDs encoded in DTSEditing Sound Field Parameters What is a sound field Changing parameter settingsPress j / i to change Parameter value Press u / d to selectSound Field Parameter Descriptions INIT. DLY/P. INIT. DLY Initial delayDSP Level DSP level Room SIZE/P. Room Size Room sizeSB INI. DLY Surround back initial delay INIT. DLY Surround initial delayLiveness Liveness Room Size Surround room sizeREV.DELAY Reverberation delay REV.TIME Reverberation timeREV. Level Reverberation level DIALG.LIFT Dialog lift Dimension DimensionFor 2ch Stereo Direct Direct For 7ch StereoFor DTS Neo6 Music Image Center image Control range 0 to Initial settingGeneral TroubleshootingGoes off Problem Cause Remedy Refer to Sound suddenlyOnly the speaker on One side can beOr DTS indicator on Problem Cause Remedy Refer to Dolby Digital or DTSVolume level is Record Volume levelTuner With the exception of U.K. model Remote control Resetting the Factory Presets Audio formats GlossaryAudio information Sound field programsCinema DSP ITU-RComponent video signal Video signal informationComposite video signal Video signalSpecifications
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