Embedded Audio Data; Multi-Screen Display Selection - Videotek TVM9100PKG Installation And Operation Handbook

Embedded Audio Data

When enabled in the OPTION pop-up menu, the Embedded Audio display appears.
Each channel is displayed on two pages. The first page is CHANNEL STATUS BIT
and the second page is USER BIT. Audio Control Packet data provides the first block
of information at the top of the pane. The information is embedded at line 9 or 571
(interlaced only) of the horizontal ancillary data for the Y channel.
At the top of the pane DID indicates the audio groups that are embedded as audio, and
a "-"indicates the audio group is not present. Also, the channel number for the data
displayed is shown.
The remaining Embedded Audio information provided in the Embedded Audio pane
are:
• CHANNELS PRESENT indicates all of the active channels by showing the
channel number. When the channel is not present, a "-" appears.
• SAMPLING RATE indicates the sampling frequency of the embedded audio.
• FORMAT indicates the professional or consumer audio format.
• AUDIO DATA indicates if the data received is audio (shown with YES) or not
audio (shown with NO).
• EMPHASIS indicates No, NA, TC, and J17. No indicates no emphasis. NA
indicates that there is no data available or defined. TC indicates the time constant of
50/15 μs. J17 indicates CCITT J.17 (800 HZ insertion loss of 6.5 dB).
• SIGNAL LOCK indicates a lock of the source sampling frequency.
• CHANNEL MODE indicates NA, two channel, 1 channel, primary/secondary, and
Stereo. NA indicates that the data value is not available or reserved.
• RESOLUTION indicates 20 or 24 bit audio packets.
• The CHANNEL STATUS BIT/USER BIT shows all 192 bits of information by
byte. Channel status bit/User Bit information analyzes the bits, decodes the
information, and displays the selected data.
When the Embedded Audio data information appears on the display, use
the UP and DOWN NAVIGATION buttons to scroll through the audio
data. Press the RIGHT NAVIGATION button to select the next channel.
Press the LEFT NAVIGATION button to select the previous channel.

Multi-Screen Display Selection

Press the MLT button in the display group to toggle between the MLT and
Quad or Full Screen. MLT is high tally when selected. Press and hold the
MLT button to access the MLT DISPLAY menu where one of the following
can be selected:
• TVM CLASSIC: Enables the display to be setup like a classic TVM display, as
described on page 117.
116
General Operation
TVM Series Installation and Operation Handbook
Copyright © 2008, Harris Corporation