JVC TH-M55 manual Creating realistic sound fields, Dolby Surround, DTS Digital Surround, DSP modes

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Creating realistic sound fields

You can use the following surround modes to reproduce a realistic sound field.

Dolby Surround

Dolby Pro Logic II

Dolby Digital

DTS Digital Surround

DSP modes

DAP modes

All Channel Stereo

%Dolby Surround

Dolby Pro Logic II*

Dolby Pro Logic II has a newly developed multichannel playback format to decode all 2 channel sources — stereo source and Dolby Surround encoded source — into a 5.1 channel.

The matrix-based encoding/decoding method used by Dolby Pro

Logic II makes no limitation for the cutoff frequency of the treble from surround channel and enables stereo surround sound

compared to conventional Dolby Pro Logic.

Dolby Pro Logic II enables to reproduce spacious sound from original sound without adding any new sounds and tonal coloration. Dolby Pro Logic II has two modes — Movie mode and Music mode:

• Pro Logic II Movie (PL II MOVIE)

Suitable for reproduction of Dolby Surround encoded sources

 

bearing the mark

 

 

 

enjoy soundfield very

 

 

 

 

close to the one created with discrete 5.1 channel sounds.

 

• Pro Logic II Music (PL II MUSIC)

 

Suitable for reproduction of any 2 channel stereo music sources.

 

You can enjoy wide and deep sound by using this mode.

 

• When Dolby Pro Logic II is activated, the

GPLII indicator

lights on the display window.

 

 

 

Dolby Digital*

 

 

 

Used to reproduce multichannel soundtracks of the software

 

encoded with Dolby Digital (

).

 

 

Dolby Digital 5.1 ch (DOLBY D) encoding method (so-called discrete multichannel digital audio format) records and digitally compresses the front left channel, front right channel, center channel, surround left channel, surround right channel and LFE channel signals.

Since each channel is completely independent from the other channel signals to avoid interference, you can obtain much better sound quality with much stereo and surround effects.

NOTE

Dolby Digital software can be roughly grouped into two categories- multichannel (up to “5.1” channel) and 2 channel software. To enjoy surround sounds while playing Dolby Digital 2 ch software, you can

use Dolby Pro Logic II.

%DTS Digital Surround**

Used to reproduce multichannel soundtracks of the software

encoded with DTS Digital Surround ( ).

DTS Digital Surround (DTS) is another discrete multichannel digital audio format available on CD, LD and DVD software. Compared to Dolby Digital, audio compression ratio is relatively low. This fact allows DTS Digital Surround format to add breadth and depth to the reproduced sounds. As a result, DTS Digital Surround features natural, solid and clear sound.

%DSP modes

DAP (Digital Acoustic Processor) modes

DAP modes have been designed to create important acoustic surround elements.

The sound heard in a live club, dance club, hall or pavilion consists of direct sound and indirect sound — early reflections and reflections from behind. Direct sounds reach the listener directly without any reflection. On the other hand, indirect sounds are delayed by the distances of the ceiling and walls (see the diagram below).

These indirect sounds are important elements of the acoustic surround effects. The DAP mode can reproduce a realistic sound field by adding these indirect sounds.

The following DAP modes are provided with this system.

LIVE CLUB

Gives the feeling of a live music club with a

low ceiling.

 

 

 

DANCE CLUB

Gives a throbbing bass beat.

 

 

HALL

Gives clear vocal and the feeling of a concert

hall.

 

 

 

PAVILION

Gives the spacious feeling of a pavilion with a

high ceiling.

 

 

 

These DAP modes can be used to add the acoustic surround effects while reproducing 2 channel stereo source, and can give you a real “being there” feeling.

When one of the DAP modes is selected, the DSP indicator lights on the display window.

*Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic” and the double-D symbol are trademarks of Dolby Laboratories.

**“DTS” and “DTS Digital Surround” are registered trademarks of Digital Theater Systems, Inc.

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Contents Model No Serial No LVT1024-001B Consists of XV-THM65, SP-PWM65, SP-THM65C and SP-THM65FFor Customer Use Class 1 Laser Product For Canada/pour le Canada Table of contents Supplied accessories Safety precautionsIntroduction Important cautionsAbout discs Playable disc typesDiscs you can play About MP3 discsDisc structure Playback Control function PBC VCD and Svcd onlyRear panel center unit Names of parts and controlsFront panel center unit Names of parts and controls Powered subwooferDisplay window center unit Remote control Connecting a TV Getting startedConnections To connect a TV through the component video input jacksFM antenna Connecting the FM and AM antennasAM loop antenna Connecting the powered subwoofer Connecting the satellite speakersSpeaker layout TH-M55/TH-M45Connect the speaker connectors to the stand connectors Join the stand to the speaker sectionFix the stand to the speaker section Before assemblingPress and hold ReleaseClamp · terminalsPowered subwoofer TH-M55 TH-M45TH-M45Be sure to identify each speaker Terminals and black cordsConnecting to an analog component Connecting to a digital componentUnit Plug both power cords into AC outlets Connecting the power cordFirmly insert the supplied power cord into Operating the system from the remote control Using the remote controlPutting batteries in the remote control For TV operations For DBS tuner or Catv converter operationsRelease F TV Press EnterFor VCR operations Release VCR Try operating your VCR by pressingManufacturer’s code 2 digits Press number buttons 1-9, 0 to enterBasic operations Turning the system on/offAdjusting the volume Listening with headphonesAdjusting the brightness Selecting the source to playUsing the Sleep Timer Adjusting the output level of the subwooferAdjusting the bass/treble sound Press SleepChanging the decode mode Changing the scan modePress Decode to select the decode mode Press DVD Press and hold Progressive for SecondsPlayback Basic playbackPlace a disc on the disc tray Press the selected Disc 1-5 buttonResume Playback DVD/Video CD/SVCD only On-screen guide iconsPlayback information on the display window To prevent screen burn-out with the screen saverPlayback features One Touch ReplayPress and hold 7, then press PressLocating the beginning of a desired selection Locating a desired selection using number buttonsFast-forward/fast-reverse search Manual tuning Preset tuningTune in the station you want to preset Tuner operationsReducing the noise of AM broadcast Reception modeSelecting the FM Creating realistic sound fields Dolby SurroundDTS Digital Surround DSP modesIndicators on the display window Available Surround modes for each input signalDigital signal format indicators Creating sound fieldUsing the surround mode Press Surround ModeWhen playing back digital multichannel software When playing back 2 channel sourceAdjusting the sound Adjust the speaker output levels -10 to +10Press Test Press Test again to stop the test toneUsing the on-screen bar Contents of the on-screen bar during playbackAdvanced operations Showing the on-screen barPlaying from a specified position on a disc Basic operation on the on-screen barChanging the time information Locating a desired scene from the DVD menuPress TITLE/GROUP Locating a desired chapter using the on- screen barLocating a desired title/group using number buttons Using the MP3 control DisplayLocating a desired position by specifying the time Desired title or group numberUsing the Jpeg control display Press number buttons 0-10, +10 to enter the track numberPress number buttons 0-10, +10 to enter the file number Press MenuSelecting a view angle Selecting a view anglePress Angle Press Angle repeatedly to select Desired view angleSelecting the audio language Selecting the subtitle/ audio languagesSelecting the subtitle language Selecting the audio channel Special picture playback ZoomingFrame-by-frame playback Playing back in slow-motionChanging the VFP setting Program Playback Press Cursor To move 0 to Press EnterRepeat to program following Orders Press ! play button to start Program PlaybackRandom Playback Repeat PlaybackRepeating the current selection or all discs Press RepeatPress Cursor //5 repeatedly to select the Repeat mode Repeating a desired partChoice menus Setting DVD preferencesUsing the choice menus Basic operation on the choice menus Press ChoicePress Cursor //5 repeatedly to select the desired option 2repeatedly to displayLanguage codes list Menu descriptionLanguage menu Language ENGLISH, Spanish and FrenchAudio menu Audio Speaker setting menuPicture menu Picture Distance menu Distance Size menu SizeLevel menu Level Other setting menu Others Setting Parental LockParental Lock Press Choice Press Cursor 3/2 to display Others menuChanging the Parental Lock setting Setting DVD preferences Press EnterPress number buttons 0-9 to enter Your password Releasing Parental Lock temporarilyCountry/Area codes list for Parental Lock System setting Press SettingPress Cursor 3/2 to make an adjustment or selection Press Cursor //5 repeatedly to select Item you want to setAV Compu Link remote control system Connecting a TV and VCRAvailable functions Connect the center unit to a TV and VCRMaintenance Trouble shootingReferences GeneralDVD Playback MutingOthers MP3 PlaybackJpeg Playback Glossary Index Audio language Audio LanguageSpecifications Center unit XV-THM65/XV-THM55/XV-THM45Subwoofer SP-PWM65 Subwoofer SP-PWM55Accessories Satellite Speakers SP-THM65FCenter Speaker SP-THM65C Satellite Speakers SP-THM55FAuthorized Service Centers Toll Free 1 800Page TH-M65/TH-M55/TH-M45 DVD Digital Theater System Page Page Page Page Page Page