JVC XM-EX90 manual Atrac Adaptive TRansform Acoustic Coding, Sound skip guard memory

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ATRAC (Adaptive TRansform Acoustic Coding)

Deutsch

(dB)

+20

High

0

-20

Ear sens.

-40

-60

Low

20

50

100

500

1k

5k

10k

15k

The MD (Mini Disc) has half the size of the CD but can record data for the same period of time. This has been made possible by the newly developed ATRAC (Adaptive TRansform Acoustic Coding), which compresses data by cutting the audio components that are inaudible to the human sense of audition. This technology reduces the recorded data to about 1/5 the original data quantity and enables recording/playback of data for up to 74 minutes.

Low	Audio	High (Hz)
	freq.

Sound skip guard memory

Français

stop

The sound skip guard memory stores some data of the played track so that the played audio does not skip due to vibration during MD (Mini Disc) playback.

In case the optical laser cannot read disc signal due to vibration, the actually reproduced audio is not interrupted because the data stored in the guard memory is available.

During normal	During vibration
playback

UTOC (User Table Of Contents)

UTOC Contents

			1st tune...
	Music data		2nd tune...
	Music data		3rd tune...
			3rd tune...

The recordable MD (Mini Disc) contains the recording of UTOC (User Table Of Contents) in addition to music data itself. The UTOC includes the information on the positions the tracks are recorded, markings between tracks and order of tracks, so tracks can be searched quickly by referring to it. The editing operations consist of altering the UTOC contents and the actual music data does not need to be re- recorded.

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Contents XM-EX90 Important for Laser Products Important cautions WelcomeFor safe use, observe the following Table of Contents Parts Index Front panelDisplay Analog input/output jacks Rear panelDigital in jacks Remote control unit Normal control button panelNumeric keys MD Control buttonsMD editing control buttons Character input keyboardSetting Up the System Supplied AccesoriesAmplifier/Tuner Audio pin cordsCD player Optical digital cableRemote control batteries Open the battery caseClose the battery case Load the batteriesRemote control operation Playback MD playback Basic operationLoad an MD Mini Disc Press Ü/8To let playback pause temporarily To skip to the beginning of a trackFast forward/fast reverse To select and play a desired trackSwitching the displayed information When a track has already been selectedPress Repeat to select the repeat play mode To cancel repeat playbackRepeat playback Press £Press Play Mode to select Program Select desired track numbers using Numeric keysProgram playback Load an MDTo cancel programmed tracks To exit program play modeTo check the programmed tracks and their order If you make a mistake in programmingPress Play Mode to select Random To exit random play modeRandom playback To repeat random playbackRecording MD recording Basic operationLoad a recordable MD Mini Disc Press REC Pause Select the input by pressing InputTo adjust the analog input level To stop recordingTo let recording pause temporarily To display the remaining recording timeAutomatic track marking Track markingManual track marking CD recording Load a recordable MD Mini Disc Prepare the CD playerPress CD REC Synchronized recording of the analog inputPress 4 or ¢ to adjust the input level Radio or tape recordingPress Input to select the analog input With the cassette deck, press Û or ÜEditing Functions MD editing functionsDividing a track Divide Erasing a track EraseCombining editing functions Assigning titlesDividing a track Divide Press Edit to select DividePress SET Play the track to be dividedFine-adjust the track marking position by Pressing /4 or ¢ To restore the original track from the divided tracksPress Enter Press 0 to eject the MDPress Edit to select Join Joining tracks JoinSelect the track to be joined with the previous Track Decrements by Press Edit to select Move Moving a track MoveSelect the track number to be moved, then Deutsch Press Edit to select Erase Erasing a track EraseSelect the track number to be erased, then Memory. The display shows Editing Erasing all tracks in an MD ALL Erase Press Edit to select ALL EraseData in the memory is written in the MD before it is Assigning titles to an MD and its tracks Load a recorded MD Mini DiscPress Title Cursor starts blinkingInput the title To cancel all input characters To correct input charactersAfter start of playback or recording of a track Assigning titles while playback or recordingInput the track title Français Deutsch Remote controlling the amplifier/tuner Switching the Power button’s control modeAmplifier/tuner mode MD recorder modeRemote controlling the amplifier/tuner Amplifier/tuner control buttonsNumeric keys 1 to 10, +10 +/R, -/LRemote controlling the CD player and cassette deck CD player control buttonsSelect a track number using the numeric keys 8 9 Operation ExamplesProgram other tracks by repeating steps 3 Press £ Play the source to be recorded Press ª or £Compu Link Single remote control unit Timer operationShortcut playback Synchronized recordingRule on Digital Copying Scms Serial Copy Management SystemAbout MD Mini Disc Role of the cartridgeTwo disc types Playback-only MDAtrac Adaptive TRansform Acoustic Coding Utoc User Table Of ContentsSound skip guard memory MD Error Messages Error Messages Description TreatmentSymptom Cause MD RestrictionsInstallation location Periodical maintenanceHandling MDs To maintain high quality audio for a long periodSymptom Cause Treatment TroubleshootingAdditional Information Specifications DigitalHOW to Locate Your JVC Service Center Limited Warranty AUDIO-1 JVC 0598TTMWSTOZK