Sony TC-K850ES Operating Instructions Manual page 11

t is the Dolby HX PRO System?
The Dolby HX PRO system provides improved linearity in
high-range frequency response during recording. Tapes
recorded with this system retain the same high quality
even when played back on other tape decks.
High
315 kHz
i}
|
Distortion ! 6.3 kHz
output
|
|
10 kHz
a 315 Hz distortion
t Bias current > High
Established bias current
As shown above, characteristics such as output level and
distortion differ widely according to the bias (high-
frequency) current. In conventional systems, the bias
current is susceptible to variations in certain recording
signals (see diagram below) which can cause fluctuations
in frequency response, distortion, or other unwanted
characteristics.
High
Fluctuation
Output
Frequency -—=> High
With the Dolby HX PRO system, the effective bias
amount added to the bias current is controlled in
millisecond units to greatly reduced distortion, improving
linearity in high-range response and ensuring high-
intensity recording with minimal distortion and noise.
inserting a Blank Space
rol Td late Mua t-reelgellare|
—Record Muting
Using the © button during recording, you can insert a
blank space on a tape to help you locate the selection
later (for details on the AMS function, see page 7). In
addition, this function enables you to eliminate unwanted
input by replacing it with a blank space.
1 While recording, press OQ.
If you want the blank to be four seconds long,
press O.
The @ indicator starts to flicker. While the indicator
is flickering, no incoming signals are recorded on
the tape. Then, after four seconds, the §§ indicator
lights up and the unit enters recording pause mode.
2 Press &§ to resume recording.
lf you want the blank to be longer than four seconds
Keep the © button pressed for as long as you want.
After four seconds, the flickering speed of the @
indicator will increase. When you release the © indicator
lights up and the unit enters recording pause mode.
11