JVC M45 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

7Dolby 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 . You can 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.

7DTS 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.

7DSP 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 TH-M45 Important for the U.K Important for Laser Products Class 1 Laser ProductXV-THM45 Safety Instructions Above ALLTable 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 onlyNames of parts and controls Front panel center unitRear panel center unit Powered subwoofer Display window center unitNames of parts and controls Remote control AUDIO, TV, VCRConnecting a TV To connect a TV with the Scart connectorGetting started ConnectionsAM MW loop antenna FM antennaConnecting the powered subwoofer Connecting the satellite speakersSpeaker layout Connecting the satellite front, center, surround speakers Before connecting the speaker cordsWhen installing the satellite speakers on the wall Twist and pull the insulation coat off and removeConnecting to an analog component Connecting to a digital componentConnecting the power cord Plug into AC outlets Power cord suppliedUsing the remote control Putting batteries in the remote controlOperating the system from the remote control Replace the coverFor TV operations Release F TV Try operating your TV by pressingPress Enter To set the manufacturer’s codeFor VCR operations Release F VCR Try operating your VCR by pressingBasic operations Turning the system on/offAdjusting the volume Listening with headphonesSelecting the source to play Turning off the sound temporarilyAdjusting the brightness Using the Sleep TimerPress Dimmer Press SleepAdjusting the output level of the subwoofer Adjusting the bass/treble soundChanging the decode mode Press Decode to select the decode modePlayback 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 Playback features One Touch ReplayPress and hold 7, then press 0for Disc Disc information on the display windowLocating a desired selection using number buttons Fast-forward/fast-reverse searchLocating the beginning of a desired selection Manual tuning Preset tuningTune in the station you want to preset Tuner operationsReception mode Selecting the FMReducing the noise of AM MW broadcast Using the RDS Radio Data System when receiving FM stations To show the RDS signals informationPress RDS Display while listening to an FM station About characters shown on the display windowTo search for a program using the PTY codes Press PTY Search while listening to an FM stationPress PTY Search again To continue searching after the first stopSwitching to broadcast program of your choice temporarily Description of the PTY codesTest How the Enhanced Other Network function actually works CaseCreating realistic sound fields Dolby SurroundDTS Digital Surround DSP modesIndicators on the display window Using 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 menuLocating a desired chapter using the on- screen bar Locating a desired title/group using number buttonsPress TITLE/GROUP Using the MP3 control DisplayLocating a desired position by specifying the time Use number buttons 0-9 to enter the timeUsing 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 the desired view angleSelecting the subtitle/ audio languages Selecting the subtitle languageSelecting the audio language Selecting the audio channel Advanced operations Press Cursor //5to select the desiredAudio language Press on Screen twice Press Audio repeatedly to select the desired audio channelSpecial picture playback Frame-by-frame playbackPlaying back in slow-motion ZoomingChanging the VFP setting Program Playback Repeat to program following ordersPress 3 play button to start Program Playback Random Playback Repeat PlaybackRepeating the current selection or all discs Press RepeatPress Cursor //5 repeatedly to select the Repeat mode Repeating a desired partSetting DVD preferences Using the choice menusChoice menus Basic operation on the choice menus Press ChoicePress Cursor //5 repeatedly to select the desired option To set other items on the same choice menuLanguage codes list Menu descriptionLanguage menu Language Speaker setting menu Picture menu PictureAudio menu Audio CenterAdjust the output level of related speakers This item is fixed to USEOther setting menu Others Setting Parental LockParental Lock Parental Lock sub-menu appears on the TV screenChanging the Parental Lock setting Press number buttons 0-9 to enter your passwordReleasing Parental Lock temporarily Country/Area codes list for Parental Lock System setting Press SettingPress Cursor 3/2 to make an adjustment or selection Repeat steps 2 and 3 to set other itemsMaintenance Trouble shootingReferences GeneralDVD Playback MP3 Playback Jpeg PlaybackOthers Glossary Refers to individual chapters included in a titleIndex JpegSpecifications TH-M45 DVD Digital Cinema System