OPERATORS MANUAL
TT1200 MPEG2-DVB PROFESSIONAL DECODER
PAGE 11
TANDBERG TELEVISION ASA, Philip Pedersensvei 20, PO Box 322, N-1324 Lysaker, Norway
Tel: +47 67 11 62 00, Fax: +47 67 11 62 01
•
Teletext Subtitling. Based on subtitling information carried in a specified teletext page. If present,
the decoder will find information about the subtitling page and its language in descriptors in the
transport stream signalling. If
Subtitling
is set to
TTX.sub
, the text in the specified subtitling
page is keyed into the video picture.
•
DVB Subtitling. A bitmap based subtitling system. Due to the bitmaps, the system can easily
display letters in various fonts and colors. One of the key advantage is the ease by which “special
characters” such as thos found in the Asian languges can be displayed. The subtiling information is
carried by a single PID. The DVB Subtitling SW is based on ETS 300 743. For DVB subtitling the
Subtitling
parameter should be set to
DVB
.
2.3.2.5 Enable or disable teletext – PAL or SECAM
The
Teletext
entry is used to enable or disable teletext in the composite video signal. Note that teletext
is only available for PAL or SECAM video, and that this menu entry is only active if
PAL
or
SECAM
is selected in the
Video format
menu. If the transport stream contains teletext for the current TV
service and
Teletext
is set to
On
, the teletext information will be inserted in the Vertical Blanking
Interval (VBI) of the video signal, and may be viewed on a TV set with teletext capabilities.
2.3.2.6 Enable or disable closed captioning – NTSC or PAL M
The Captioning entry is used to enable or disable closed captioning. Note that closed captioning is only
available for NTSC and PAL M video, and that this menu entry is only active if
NTSC
or
PAL M
is
selected in the
Video format
menu. If the transport stream contains closed captioning information, this
will be inserted in line 21 in odd fields, if enabled. The inserted closed captioning information may be
in one of the following formats;
ATSC
,
C-Cube
or
DiviCom
.
2.3.3 Setting up the Audio 2 and Audio 3 services
TT1200 may optionally be delivered with two additional audio channels, called Audio 2 and Audio 3.
The shaded area in Figure 1 shows the additional connectors on units with Audio 2 and Audio 3. This
section describes how to set up these audio channels. If you do not have additional audio channels, you
may skip this section.
The explanation below is given for Audio 2. The exact same procedure applies for Audio 3.
2.3.3.1 Selecting Audio 2 service
In the same manner as for the TV service, you must first select which audio service you want to decode.
Enter the
Audio2 Service
menu and find a list of services that can be seen by using the up and down
arrow keys. Select the service you want to see by pressing the right arrow key. Note that the
demodulator must be working OK for you to find this list. If there is no list of services, check the
demodulator status and setup again. Also the service ID can be typed in manually if this is known, and
can thus be configured without the signal being present.
If you have connected speakers to the audio outputs (see section 3.4 for detailed description of the
audio connectors), you should now have sound on the Audio 2 outputs.
2.3.3.2 Setting up the Audio 2 language
If the service contains more than one language component, the desired language may be selected in the
Audio2 language
menu. Please select the preferred language from the existing predefined priority
lists (the priority list can be viewed by scrolling the menu under the selected language.) If no predefined
