Orban Optimod-TV 8382, Руководство по эксплуатации

Страница: 59 / 244

OPTIMOD-TV DIGITAL INSTALLATION
2-17
cannot defeat the pre-emphasis in your stereo encoder, or if you will use
the analog output for monitoring, set the output Flat
.
If you are sending the analog output of the 8382 through a digital link
that uses lossy compression (like MPEG, APT-X, or Dolby), set the output
F
LAT
.
Lossy codecs cannot handle pre-emphasized signals.
If you are going to use the analog output for headphone monitoring (see
step 10 below), set the output
F
LAT
.
12. Set digital output to be flat or pre-emphasized.
(See the notes in step 11 on page 2-16.)
A) Press the N
EXT
button.
B) [Skip this step if you will not be using the digital output.]
Turn the knob to choose P
RE
-
E
(for a 50 or 75µs pre-emphasized output),
J.17
(for a J.17 pre-emphasized output
), P
RE
+J17
(for 50 or 75µs pre-
emphasis cascaded with J.17 pre-emphasis), or F
LAT
(which applies 50 or
75µs de-emphasis after the processing).
Regardless of the setting of this control, the processing is always inter-
nally pre-emphasized and thus always controls peaks to follow the 50 or
75µs pre-emphasis curve.
13. Set the digital output sample rate.
A) Press the
N
EXT
button.
B) [Skip this step if you will not be using the digital output.]
Turn the knob to set the Digital
O
UTPUT
S
AMPLE
R
ATE
to 32, 44.1, 48, 88.2,
or 96 kHz.
The internal sample rate converter sets the rate at the 8382’s digital out-
put. This adjustment allows you to set the output sample rate to ensure
compatibility with equipment requiring a fixed sample rate. In all cases,
the 8382’s fundamental sample rate is 32 kHz, ensuring that the output
bandwidth is always strictly limited to 16 kHz and that the processed sig-
nal can be passed through a 32 kHz uncompressed STL without addition
of overshoot.
14. Prepare to set output levels.
A) Press the
N
EXT
button.
You can use either program material or tone to set the output level (and
thus, the on-air modulation).

To use tone, press the
Y
ES
button.

To use program material, press the N
O
button.