Pioneer CT-W505R - Manual (Page 8)

REVERSE MODE SWITCH (REV MODE) DOLBY NR & DOLBY HX PRO
There are three settings:
One way mode zz position
When the switch is set to this position, playback or recording is per­
formed on one side of the tape only. When the tape reaches the end
of the side, it stops automatically (auto stop function).
Two way mode r=> position
When the switch is set to this position, playback or recording can be
performed on both sides of the tape. When the tape reaches the end
of the first (forward) side, its direction is automatically reversed, and
playback or recording continues on the other (reverse) side. When it
reaches the end of the reverse side, the tape stops automatically
(auto stop function). If playback or recording is started from the re­
verse side, the tape will stop when it reaches the end of that side.
Repeat mode co position (RELAYPLAY)
[if a tape is loaded in either DECK I or II]
Both sides of a tape are played back repeatedly using the auto re­
verse system. When 16 sides of the tape have been played back the
deck stops automatically.
Recording will be performed in the same manner as the two way
mode.
[If both DECK I and II are loaded with tapes]
Relay play will be used for playback (See page 10)
Relay recording will be used of recording starts with DECK I.
FLEX SYSTEM
• FLEX System: Frequency Level Expander System
This system automatically compensates high and low frequency
level balance above 1 kFIz according to the 1/f curve during play­
back.
Generally, the envelope line of sound energy distribution of Fli-Fi
sounds corresponds statistically with the 1/f curve.
The 1/f curve indicates that if the frequency doubles, the leve de­
creases by approx. Flalf of the original frequency level,
• During playback, the FLEX system automatically compensates
tapes with poor sound quality at high frequency levels of 1 kHz
and over, based on the appropriate auditory characteristics.
The FLEX system is designed to improve high frequency repro­
duction in thel 0 kHz range be up to about 12 dB (max.), particu­
larly in tapes with poor sound clarity and sound presence at high
frequency levels. If the playback tape sound matches the 1/f
curve, the FLEX system defeats compensation adjustment auto­
matically,
• When you press the FLEX button to turn the FLEX system on and
start playback, the FLEX indicator flashes and compensation ad­
justment begins.
Compensation adjustment takes within approximately 3 seconds
to complete, depending on the music source. The indicator
changes from a flashing to a steadily lit condition when the ad­
justment is completed.
• When the FLEX system is engaged, each music selection is auto­
matically adjusted during playback. System operation status is
indicated by the FLEX indicators (flashing or steudily lit.)
NOTE:
• When a tape has been recorded at a high frequency level above
the compensation level, the FLEX system operation is automati­
cally defeated during playback.
■ Dolby NR Systems
Dolby NR systems are designed to reduce the amount of tape hiss,
mainly in the treble components. During recording, the highpitched
. pianissimo sounds which are most characteristic of audible noise are
boosted, and during playback, only these boosted sections are at­
tenuated, so that tape sound is returned to normal. As a result, the
noise is attenuated by an amount equal to the boosting in the treble
range. The Dolby B-type NR system reduces noise in the treble
range, cutting tape hiss and expanding the dynamic range. The Dolby
C-type NR system is even more effective in reducing noise, as it re­
duces noise from the mid-range on.
NOTE:
When a tape has been recorded using the Dolby B-type or C-type NR
system, make sure that the DOLBY NR switch is set to the same
position during playback.
■ Dolby HX PRO Headroom Extension System
The DOLBY HX PRO system controls the bias current during record­
ing and maintains it at the optimal level based on the amount of the
high-frequency components in the music signal. It therefore provides
excellent recording quality even when recording signals from digital
sources, which contain a large amount of high-frequency compo­
nents. To guarantee optimal results, the HX PRO system is activated
automatically when recording begins. Since this system controls the
quality of recording itself, the clarity of the sound will be maintained
even when the tapes are played back on another cassette deck
which does not contain the HX PRO Headroom Extension System.
AUTO BLE SYSTEM
With commercially available cassette tapes, sensitivity and frequency
characteristics might differ slightly from one another, even though
the same sound adjustment is set for them. To utilize tape character­
istics to the maximum possible and realize an ideal recording which
reproduces the source exactly, optimum recording level (sensitivity)
and equalizer values must be set accordingly for each tape. In many
conventional tape decks, standard values are fixed for standard
tapes, thus nullifying the subtle differences between individual
tapes. Perfect tuning by ear through use of fine adjustment control­
lers for bias and sensitivity is difficult and requires a lot of effort. It is
especially difficult with a 2-head deck where the recording sound
cannot be monitored.
The AUTO BLE on this unit automatically adjusts bias, level and
equalizer by using a microprocessor to set the optimum recording
characteristics accordingly for each tape.
ALCA SYSTEM
• ALCA system : Auto Level Control with tape Analysis.
This function automatically sets the recording level according to:
©) the performance of the (individual) tape, and (D) the character
of the input signal.
© To determine the performance of the tape, the deck records an
internal test signal that is analyzed by a microcomputer to distin­
guish the difference between your tape and a (known) standard
tape. The outcome determines the peak recording level and the
initial recording level.
@ When you start recording, an electronic level control sets the re­
cording level so the level meter will approach, but not exceed,
the peak recording level in response to the input signal. If the
meter peaks, the recording level is reduced automatically.
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