Denon DRM-600 - Page 13

MUSIC SEARCH SYSTEM
This device is a convenient system which detects the
non-recorded part of more than 4 seconds between melodies,
cues the next melody while the present melody is being
reproduced or automatically detects the beginning of the
melody now being reproduced and makes it into the repro-
duceable state.
1. For cueing the next melody while the present melody
is being reproduced :
At PLAY mode, depress the ‘‘>’’ PLAY button and the
“DP FF button simultaneously. This device will detect
the interval between melodies with the CUE state on,
automatically assume the PLAY mode and begin performing
the next melody.
2. For hearing again the melody being reproduced:
At PLAY mode, depress the ‘‘®’’ PLAY button and the
‘<q REW button simultaneously. This device will detect
the interval between melodies with the REVIEW state on, au-
tomatically assume the PLAY mode, detect the beginning of
the melody being performed and play it from the beginning
again.
DOLBY C NOISE REDUCTION SYSTEM
@ The Dolby noise reduction system substantially reduces
the tape background noise (hiss) inherent in the cassette
medium. Dolby B NR is most widely in use. However,
Dolby C NR is a much more recent development and
represents a significantly improvements over Dolby B NR.
@ Tape background noise consists primarily of high frequency
information which is particularly annoying during soft
passages. The Dolby NR system increase the level of
low volume mid and high frequency signal during recording
and reduces the level of these signals by an identical
amount during playback. As a result, the playback signal
is identical to the original source signal, but the level
of background noise generated by the tape is greatly
reduced.
DOLBY HX-PRO HEADROOM EXTENSION SYSTEM
This deck is equipped with the DOLBY HX-PRO headroom
extension system. Since the system functions automatically
during recording, no switching operation or adjustment is
required. The system is effective with any type of Normal,
CrOs or Metal tapes.
The Dolby HX-PRO headroom extention system functions
during recording to lift up the saturation level in the treble
range. Therefore, most of the treble range components
distorted or lost during recording on conventional! cassette
decks are more faithfully recorded on tne new DRM-600
cassette deck.
MUSIC SEARCH is a function which operates by detecting
a comparatively long non-recorded part on the tape. There-
fore, MUSIC SEARCH may not operate normally in the
following cases.
e Sound on the tape is interrupted by speech or conversa-
tion.
eLong periods of pianissimo (softly played music) or
non-recorded intervals occur on the tape.
e The tape has picked up noise in a non-recorded interval.
e Non-recorded intervals on the tape are less than 4 seconds
in length.
eNoise-emitting electrical appliances are in operation
nearby. i.e.; Electric razors, drills, refrigerators, etc.
M@The operating principle of Dolby C NR is similar to that
of B except for the encoding/decoding response curves:
The noise reduction effect obtained by Dolby C NR is up
to 20dB, compared to 10dB with Dolby B NR. In addition,
Dolby C NR uses an antisaturation network and spectral
skewing circurity, and significantly improves the dynamic
range in the mid to high frequencies.
Features of the DOLBY HX-PRO headroom extension
system
(1) Performance of Normal and CrO, tapes can be up-
graded closer to that of Metal tapes.
(2) The dynamic range in the treble is improved signifi-
cantly.
(3) Since no decoding in playback is necessary, the
improvement can be obviously heard on any hi-fi
playback system including portable components and
car systems.
(4) The system functions whether the Dolby B/C NR is
engaged or not.