MD system
The Mini Disc system has the features as summarized in the following.
1Like CD (Compact Disc), playback can be started from any position. (Random access)
2 It uses a disc with a diameter of 64 mm that is accommodated in a cartridge.
3 Two types of discs can be used. (playback only discs, recordable / playable discs).
4 Up to 74 minutes of recording or playback is possible using
9
Playback-only Mini Disc
This type of MD can be used only for playback, and is used by the
Recordable Mini Disc
This MD is a
Sound-skip prevention memory
During playback, this unit always stores signals in memory temporarily to prevent sound from being skipped in case of vibration. As a result, even when the data from the optical pickup is interrupted due to vibration, etc., the music will not be interrupted because the memory holds the data for several seconds.
During normal | Mini Disc |
playback |
|
| Several sec. of data |
| Digital memory |
The sound data for several | In case of vibration |
seconds is always stored |
|
during playback. |
|
Reproduced sound
When the readout from disc is interrupted momentarily due to vibration or shock, the reproduced sound from the memory will not be interrupted.
Reproduced sound
The Mini Disc has only a half the size of the Compact Disc but provides the same recording time. This is made possible by ATRAC*, a newly developed
The ATRAC compresses the music data to about 1/5 the amount of data which would be obtained with conventional technology, by cutting off the sound components which do not pose problem in audition even when they are not present. This has made it possible to record or play up to 74 minutes.
Sound does not af- fect the sensitivity of ears
Sensitivity of ears
Lowest and highest frequencies are not audible unless the sound has a certain level of volume.
Lowest frequencies | Highest frequencies |
Small sound near large sound
A small sound is not audible to human ears if it is produced at the same time as a large sound. (Masking effect)
12
9 3 6
Monaural recording
This unit can record a longer period of sound in monaural (monaural
in the stereo mode. |
|
The Mini Disc recorded in the monaural mode cannot be played with equipment which is not compatible with monaural playback. | ^ |
D.R.I.V.E. (Dynamic Resolution Intensive Vector Enhancement) system
This unit incorporates the
The digital inputs include both optical and coaxial input jacks so that
1The reproducibility of small signals is improved drastically for an excellent reproduction of fine reverberations of music. The excellence is also remarkable in the feeling of stability, presence, attack sound and bass reproduction.
2The D.R.I.V.E. system maintains the correlation between the musical components of the input and output signals and does not cause any sound degradation from the principle.
MONITOR function
This unit can be used as a | Refer to “MONITOR key”. £ |