evertz 7700 Series User manual

7700 MultiFrame Manual
7737CE Composite Encoder with Image Enhancement
1. OVERVIEW .......................................................................................................................... 1
1.1. FUNCTIONAL DESCRIPTION ........................................................................................................... 2
2. INSTALLATION ................................................................................................................... 3
2.1. VIDEO IN AND OUT........................................................................................................................... 4
3. SPECIFICATIONS ...............................................................................................................5
3.1. SERIAL VIDEO INPUT....................................................................................................................... 5
3.2. ANALOG BROADCAST VIDEO OUTPUT......................................................................................... 5
3.3. REFERENCE VIDEO INPUT.............................................................................................................. 6
3.4. ANALOG MONITORING VIDEO OUTPUT ........................................................................................ 6
3.5. ANALOG AUDIO OUTPUTS (-A4 ONLY) ........................................................................................... 7
3.6. UNBALANCED AES AUDIO INPUTS (-A4 ONLY) ............................................................................. 7
3.9. ELECTRICAL ..................................................................................................................................... 7
3.10. PHYSICAL.......................................................................................................................................... 7
4. STATUS LEDS..................................................................................................................... 8
4.1. MODULE STATUS LEDS .................................................................................................................. 8
4.2. AUDIO STATUS LEDS ...................................................................................................................... 9
5. AUDIO LEVELS, HEADROOM, AND CLIPPING ................................................................ 9
6. ON SCREEN MENUS .......................................................................................................... 9
6.1. NAGIVATING THE ON SCREEN MENU SYSTEM............................................................................ 9
6.2. CHANGING TEXT FIELDS .............................................................................................................. 10
6.3. ON SCREEN DISPLAY – MAIN MENU ........................................................................................... 11
6.4. CONFIGURING THE AUDIO CONTROLS (-A4) ............................................................................. 11
6.4.1. Selecting the Audio Source................................................................................................... 12
6.4.2. Audio Freeze Mode (-A4)...................................................................................................... 12
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6.4.3. Additional Audio Delay (-A4) .................................................................................................13
6.4.4. Monitoring the audio buffer tracking (-A4)............................................................................. 13
6.4.5. Audio Channels Processing (-A4).........................................................................................14
6.4.6. Setting the Analog Levels (-A4) ............................................................................................13
6.5. CONFIGURING THE VIDEO CONTROLS .......................................................................................14
6.5.1. Setting the Video Standard ...................................................................................................16
6.5.2. Selects the Action to Take when Input Video Is Missing.......................................................16
6.5.3. Genlock Source Selection.....................................................................................................16
6.5.4. Setting the Free-Running Frequency.................................................................................... 17
6.5.5. Setting the Fine Phase of the Output Video – NTSC/525 Video...........................................17
6.5.6. Setting the Fine Phase of the Output Video – PAL-B/625 Video ..........................................17
6.5.7. Setting the Horizontal Phase of the Output Video – NTSC/525 Video.................................. 18
6.5.8. Setting the Horizontal Phase of the Output Video – PAL-B/625 Video .................................18
6.5.9. Monitoring the Horizontal Delay between the Input and Output Video .................................18
6.5.10. Setting the Vertical Phase of the Output Video – NTSC/525 Video......................................18
6.5.11. Setting the Vertical Phase of the Output Video – PAL-B/625 Video ..................................... 18
6.5.12. Monitoring the Vertical Delay between the Input and Output Video......................................19
6.5.13. Setting the Color Field Phase of the Output Video – NTSC Video .......................................19
6.5.14. Setting the Color Field Phase of the Output Video – PAL-B Video.......................................19
6.5.15. Monitoring the audio buffer tracking (-A4).............................................................................20
6.6. CONFIGURING THE VIDEO PROCESSING CONTROLS ..............................................................21
6.6.1. Adding the NTSC Setup Pedestal.........................................................................................21
6.6.2. Line 21 Processing................................................................................................................22
6.6.3. Colour Bars ...........................................................................................................................22
6.6.4. Setting the Composite Display Mode – Colour or Monochrome ........................................... 22
6.6.5. Video Level ...........................................................................................................................23
6.6.6. Setting the Hue .....................................................................................................................23
6.6.7. Setting the Saturation............................................................................................................23
6.6.8. Setting the Contrast ..............................................................................................................23
6.6.9. Setting the Brightness...........................................................................................................24
6.6.10. H Blanking.............................................................................................................................24
6.6.11. VBI Processing......................................................................................................................24
6.6.12. Y Filter Selection ...................................................................................................................24
6.6.13. Wideband Y Frequency Response .......................................................................................24
6.6.14. Chroma Filter Selection.........................................................................................................25
6.7. THE ON-SCREEN DISPLAY STATUS ............................................................................................ 26
6.8. UTILITIES .........................................................................................................................................28
6.8.1. Accessing Information About this Module and its Firmware ................................................. 28
6.8.2. Saving And Recalling Configurations....................................................................................28
6.8.2.1. Storing Configurations to the User Presets ............................................................28
6.8.2.2. Recall Configurations from the User Presets .........................................................28
6.8.3. Initiating a Software Upgrade................................................................................................29
6.8.4. Restoring the CE to its Factory Default Configuration ..........................................................29

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7. JUMPERS .......................................................................................................................... 29
7.1. TERMINATION JUMPERS............................................................................................................... 29
7.2. SELECTING WHETHER LOCAL FAULTS WILL BE MONITORED
BY THE GLOBAL FRAME STATUS ...............................................................................................29
7.3. CONFIGURING THE MODULE FOR FIRMWARE UPGRADES ..................................................... 30
Figures
Figure 1: 7737CE-A4 Block Diagram .................................................................................................................. 2
Figure 2: 7737CE Block Diagram........................................................................................................................ 3
Figure 3: 7737CE Rear Panels ........................................................................................................................... 4
Figure 4: LED Locations...................................................................................................................................... 8
Figure 5 : Location of Jumpers on 7736CE Boards .......................................................................................... 29
Tables
Table 1: Audio Channel Status LEDs.................................................................................................................. 9
Table 3: Video/Audio Status Screen Items........................................................................................................ 27
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REVISION HISTORY
REVISION DESCRIPTION DATE
0.0 start Jul 05

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1. OVERVIEW
The 7737CE line of component serial digital to composite analog video converters are broadcast quality
encoders with image enhancement processing to sharpen video images. An audio de-embedder with high
quality audio digital to analog conversion can be purchased with the encoder to create a video/audio frame
synchronizer/conversion package. In addition, Control of the module is via On-Screen-Display (OSD), or
remotely via VistalinkSNMP.
The features of all 7737CE’s are:
• One component serial digital input (525 or 625).
• One re-clocked component serial digital output.
• EDH analysis on SDI input.
• Four composite analog video outputs WITHOUT OSD text.
• Internal processing to maintain 10 bit digital video quality.
• 10 bit output video digital to analog conversion.
• One monitoring quality video output with OSD text.
• User adjustable output video processing functions: black level (brightness), gain (contrast), hue, and
saturation.
• User selectable luminance and chrominance filters for different applications (i.e. broadcast vs. studio).
• User selectable horizontal blanking interval width: narrow, normal.
• One composite analog reference input (NTSC or PAL-B) on BNC. 75 Ohm or high-Z, jumper
configurable input impedance.
• One frame video synchronizer (with +S option).
• Infinitely variable output phase.
• Freeze modes: black, freeze.
• Adjustable free running frequency.
• Built-in colour bar generator.
• A comprehensive on screen display is available to configure the various features of the module.
The Features of "-A4" option are:
• One group (4 channels) of synchronous 20-bit audio is de-multiplexed from the incoming digital video.
• 2 unbalanced (or balanced) AES audio inputs (up to 48kHz, 24 bits) on BNC (terminal strip).
• User selects EITHER the de-embedded audio or the input AES audio.
• The selected audio is delayed equivalently to the video delay with the +S option.
• 4 high quality 24 bit audio channels are output (analog) as balanced on 2 removable barrier strips.
• Low impedance outputs (66Ω).
• Analog audio output levels are adjustable.
• Additional audio delay of up to 5 seconds.
• Additional audio advance of up to 1 frame, depending on video delay.
• Loss of video modes: pass audio, mute audio.
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1.1. FUNCTIONAL DESCRIPTION
270Mbps component SDI video is converted to 10 bit parallel data and encoded to high quality composite
analog video. Various video processing functions (gain, saturation, black level, etc) are performed during
the encoding process.
A re-clocked copy of the component SDI video is available on the “SDI OUT” BNC. This output will not be
present if the card is unplugged or the power to the frame is turned off.
Digital audio is de-multiplexed from the incoming SDI video. External digital AES audio is also received via
input BNC's (unbalanced) or removable terminal strip (balanced). The user can select either of these two
sources for further processing. The selected digital audio is delayed (with +S option) to match the delay
experienced by the video in the video synchronizer. In addition, the user can select additional audio delay.
On the 7737CE-A4, the audio is converted to balanced analog audio through a high quality 24 bit D to A
converter and delivered to the outside world via removable terminal strips.
This video goes out through two paths; a high quality component to composite converter (composite
encoder) and a monitoring quality composite encoder with the OSD "burn-ins". The hardware mixes (keys)
the on screen text control information onto the monitoring output video stream.
The CPU also gets pushbutton and toggle switch commands from the card edge controls and draws
extensive menus for configuring the operation of the card.
Composite
Outputs
EDH
Analysis
Monitoring
Quality
Composite
Encoder
Mon Output
SDI Input
Genlock
75 Ω
Card
Reference
CPU
Card Edge
Controls &
Indicators
To/From
SNMP
Network
Composite
Analog
Reference OSD
Display
Audio content
analysis and
Delay (optional)
High
Quality
Composite
Encoder
Audio
Demux
Frame
Sync
(optional)
AES
Receivers
D/A
4 Channels
Balanced
Analog
Audio
Reclocked
SDI Out
S/P
(Unbalanced)
2 AES
Inputs
Image
Enhancement
Figure 1: 7737CE-A4 Block Diagram
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Composite
Outputs
EDH
Analysis
Monitoring
Quality
Composite
Encoder
Mon Output
SDI Input
Genlock
75 Ω
Card
Reference
CPU
Card Edge
Controls &
Indicators
To/From
SNMP
Network
Composite
Analog
Reference OSD
Display
High
Quality
Composite
Encoder
Frame
Sync
(optional)
Reclocked
SDI Out
S/P Image
Enhancement
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Figure 2: 7737CE Block Diagram
2. Installation
The 7737CE modules come with a companion rear plate and occupy one or two slots in the 7700FR
frame.
Figure 3 shows a picture of each of the rear panels. For information on mounting the rear plate and
inserting the module into the frame see the 7700FR chapter section 3.
The 7737CE cards must be inserted into slots with the correct rear panel. Some cards have physical
differences and some have functional differences and the associated labels will be misleading.

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Figure 3: 7737CE Rear Panels
2.1. VIDEO IN AND OUT
Connect a source of component serial digital (525 or 625 line) video to the top BNC labeled SDI IN. A re-
clocked version of the input video is available on the SDI OUT BNC. Connect a reference black signal to
the REF IN BNC if frame synchronization is desired (+S only). Broadcast quality composite analog video is
available on the ANALOG OUT BNCs. Monitoring quality video with text for card control and status
information is available on the MON OUT output BNC. If the card is not present or the power is off, there
will be nothing on any of the outputs.
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3. SPECIFICATIONS
3.1. SERIAL VIDEO INPUT
Standard: SMPTE 259M-C – 525 or 625 line component.
Number of Inputs: 1
Number of re-clocked
outputs:
1
Connector: BNC per IEC 169-8
Return Loss: >15dB to 270MHz
Embedded Audio: SMPTE 272M-A
Frequency Lock
Range:
±75ppm from nominal
Lock up time on a hot
switch:
TBD
3.2. ANALOG BROADCAST VIDEO OUTPUT
Standard: NTSC, SMPTE 170M
PAL, ITU624-4
Number of Inputs: 4
Connector: BNC per IEC 169-8
Signal Level: 1V nominal
Output Impedance: 75 Ohm
DC Offset: 0V +/- 50mV
Return Loss: >45dB to 10MHz
Frequency Response: <+/- 0.1dB to 4 MHz (response will depend on selected filtering)
Differential Phase: < 0.5°(< 0.3°typical)
Differential Gain: < 0.5% (< 0.3% typical)
SNR: >75dB (black video, 100kHz to 5MHz)
Output level control range: ±10%
Black level control range: ±7.5 IRE
Chroma level control range: ±10%
Hue control range: ±15 deg. (NTSC only)
Minimum Delay: 3 µs
Maximum Delay: 1 frame + 3 µs (+S option only)
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3.3. REFERENCE VIDEO INPUT
Standard: NTSC, SMPTE 170M
PAL, ITU624-4
Number of Inputs: 1
Connector: BNC per IEC 169-8
Signal Level: 1V nominal (0.5V to 1.5V)
Frequency Lock Range: ±75ppm from nominal
Input Impedance: 75 Ohm or High impedance (jumper selectable)
Return Loss: >25dB to 10MHz
Max Subcarrier Jitter: < 3 degrees
Free-Running
Frequency Control
Range:
> +/- 10ppm (> +/- 270Hz)
3.4. ANALOG MONITORING VIDEO OUTPUT
Standard: NTSC, SMPTE 170M
PAL, ITU624-4
Number of Outputs: 1
Connector: BNC per IEC 169-8
Signal Level: 1V nominal
Output Impedance: 75 Ohm
Return Loss: >35dB to 10MHz
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3.5. ANALOG AUDIO OUTPUTS (-A4 only)
Number of Outputs: 4
Type: Balanced analog audio
Connector: Two 6 pin removable terminal strips
Output Impedance: 66Ωbalanced
Sampling Frequency: 48kHz
Signal Level: 0dBFS => 12 to 25dBu (user settable)
Frequency Response: <+/- 0.05dB (20Hz to 20kHz)
Dynamic range: 24 bits when AES inputs selected,
20 bits when embedded audio selected
THD+N: <0.001% (>100dB) @ 1kHz, -1dBFS
Crosstalk: <-105dB (20Hz to 20kHz)
DC Offset: <+/- 30mV
SNR: >110dB "A" Weighting
Inter-Channel Phase
Error:
<+/-1°(20Hz to 20kHz)
3.6. UNBALANCED AES AUDIO INPUTS (-A4 only)
Number of Inputs: 2
Input Standard: SMPTE 276M, single ended synchronous or asynchronous
PCM AES
Connectors: BNC per IEC 169-8
Resolution: Up to 24 bits
Input Sampling Rate: 32kHz to 48 kHz
Minimum I/O Delay: 3.5msec
3.9. ELECTRICAL
Voltage: + 12VDC
Power: 9.25 Watts (7737CEM)
16.75 Watts (-A4 or –A4-B option)
EMI/RFI: Complies with FCC Part 15, class A and EU EMC directive.
3.10. PHYSICAL
7700 frame mounting:
Number of
slots:
1 for non-audio versions
2 for audio version (-A4)
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4. STATUS LEDs
7737CE-A4
toggle
switch
push
button
GENLOCK
AUDIO
NTSC
PAL
OK
FAULT
1234
Audio LEDs
Figure 4: LED Locations
4.1. MODULE STATUS LEDS
MODULE OK: This Green LED will be on when the module is operating properly.
LOCAL FAULT: This Red LED makes it easy to identify one module in a frame that is missing an
essential input or has another fault.
The LED will blink on and off if the microprocessor is not running.
The LED will be on when there is a fault in the module power supply or a user
configurable error condition exists.
NTSC/PAL: The NTSC/PAL Green LEDs (NTSC on the top, away from the PCB and PAL on
the bottom, closest to the PCB) will indicate the video standard of the SDI video
input. If video is removed, both LEDs will go off. If the input standard is opposite
to the user selected standard, the LED will flash.
GENLOCKED: This Green LED is on solid if the genlock source is present and the user has
turned on genlocking.
It is flashing if the user has turned on genlocking and the genlock source is not
present.
It will be off if the user has turned genlocking off.
AUDIO:
This Green LED is on solid when the user selected audio is present. It will flash
when some, but not all, of the audio channels are present. If no audio is present,
it will be off.
For instance, if external AES audio is selected (via. the OSD menu) and only one
of the two AES channels is present, then this LED will flash.
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4.2. AUDIO STATUS LEDS
Four LEDs located on the lower end of the module (near the card extractor) indicate which audio channels
are present. Audio channel 1 LED is located closest to the center of the module. Digital audio presence is
determined by the AES receiver lock indicator (when AES input is selected). When embedded audio is
selected, the channel must be present on the selected group for the LED to illuminate.
Audio
LED
Colour Audio Channel Status
1 Off No channel 1 present.
Green Channel 1 present.
2 Off No channel 2 present.
Green Channel 2 present.
3 Off No channel 3 present.
Green Channel 3 present.
4 Off No channel 4 present.
Green Channel 4 present.
Table 1: Audio Channel Status LEDs
5. AUDIO LEVELS, HEADROOM, AND CLIPPING
This section contains notes to understand how the 7737CE-A4 relates analog audio levels and digital
audio levels.
Before you can calibrate the audio digital to analog converter, you must know a couple of system issues
specific to your application. What is your analog reference level and how much headroom is there in the
digital audio signal? By adding these two values together, you will get the analog output level that will just
begin to saturate the digital word (This is the highest level that can be represented without distortion with
the digital numbers). This level is called 0dB FS (FS stands for "full scale"). For instance, if your analog
program reference level is 4dBu and you have 20dB of headroom in the "digital world", then 0dB FS will
correspond to an analog level of 24dBu. Once the audio output level is calibrated, when you apply a digital
level of –20dB FS, the analog output signal will be 4dBu .
When a full-scale digital signal is input, you will get a peak analog output signal level that is set by the
analog level controls. The following relationship is always maintained:
PGM reference level + headroom = peak output level
6. ON SCREEN MENUS
6.1. NAGIVATING THE ON SCREEN MENU SYSTEM
A toggle switch and pushbutton allow card edge navigation of a set of on-screen menus used to configure
the card.
To enter the on-screen menu system, press the pushbutton once. This will bring you to the main setup
menu where you can use the toggle switch to move up and down the list of available sub menus. An arrow
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(>) moves up and down the left hand side of the menu items to indicate which item you are currently
choosing. Once the arrow is on the desired item, press the pushbutton to select the next menu level.
On all menus, there are two extra selectable items: Back and Exit. Selecting Back will take you to the
previous menu (the one that was used to get into the current menu) while Exit will return the display to its
normal operating mode. On the main menu, BACK and EXIT will both take you to the normal operating
mode.
Once in a sub menu, there may be another menu layer, or there may be a list of parameters to adjust. If
there is another set of menu choices, use the toggle switch to select the desired menu item and press the
pushbutton.
To adjust any parameter, use the toggle switch to move up or down to the desired parameter and press
the pushbutton. The arrow will move to the right hand side of the line (<) indicating that you can now
adjust the parameter. Using the toggle switch, adjust the parameter to its desired value. If the parameter
is a numerical value, the number will increase if you lift the toggle switch and decrease if you push down
on the toggle switch. If the parameter contains a list of choices, you can cycle through the list by pressing
the toggle switch in either direction.
When you have stopped at the desired value, depress the pushbutton. This will update the parameter to
the selected value and move the arrow back to the left side of the parameter list (>). Continue selecting
and adjusting other parameters or use the BACK or EXIT commands.
6.2. CHANGING TEXT FIELDS
Some of the controls of the OSD menu allow you to adjust a text-based field. Editing a line of text can be a
little tedious with a toggle switch and a pushbutton, but it can be done with the following procedure:
1. Select the text to edit by pressing the pushbutton when the menu item is selected. This will take you
to a screen that has the label/name of the text being edited and a white box. The white box contains
the text to change and is drawn to the maximum size of the text field.
SAMPLE TEXT
^
Note the arrow (^) under the character. This indicates which character you will be changing with the
toggle switch.
2. Use the toggle switch to change the first character of the text message.
3. Once you have selected the desired character, press the pushbutton. This will advance the arrow to
the next character. Continue changing the remainder of the characters in the same way.
4. There are two special characters to help you enter the text: a backspace character (left pointing
arrow), and an end of line character (stop sign):
Left Arrow: If you have accidentally advanced to the next character and want to go back, select the left
arrow with the toggle switch. When you press the pushbutton, you will go back to the previous
character. This will save you from having to complete the editing and re-edit it to change the mistake.
Stop sign: If you are done changing the text, and the new text is shorter than old text, you can terminate
the line with a stop sign. When you use the pushbutton after selecting the stop sign, any remaining
characters in the text field will be erased and you will return to the menu structure.
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5. You are done editing when you reach the end of the field (maximum length), or you select the stop
sign and press the pushbutton.
6.3. ON SCREEN DISPLAY – MAIN MENU
Audio Configuration of the parameters associated with analog audio inputs and audio
multiplexing
Video Controls for the operation of video processing.
Utilities Card preset management, data logging and various debug and maintenance
features.
The OSD menu is arranged in a layered structure that groups similar configuration items together. The
following section gives a brief description of the first level of menus that appear when you enter the OSD
screens. Selecting one of these items will take you to the next menu level. The following sections provide
detailed descriptions of each of the sub menus. The tables are arranged in an indented structure to
indicate the path taken to reach the control. Menu items or parameters that are underlined indicate the
factory default values.
6.4. CONFIGURING THE AUDIO CONTROLS (-A4)
The Audio menus are used to configure parameters associated with the analog audio outputs and the
audio de-multiplexing. The chart below shows the items available in the Audio menu. Sections 6.4.2 to
6.4.5 give detailed information about each of the parameters. Many of the menu items are the same for
the channel 1/2 and 3/4 channel pairs. For simplicity only the menu items for the channel 1/2 channel pair
are shown in the manual.
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Loss of video Selects audio processing when video goes missing.
Audio Source Selects the source of audio. It will either be the source group of embedded audio
or external AES signals.
Audio Delay Add/remove audio delay
Audio Buffer Monitor audio delay buffer state
Ch1 adjust Adjusts audio output level.
Ch2 adjust Adjusts audio output level.
Ch3 adjust Adjusts audio output level.
Ch4 adjust Adjusts audio output level.
Ch 1 processing Selects the audio processing.
Ch 2 processing Selects the audio processing.
Ch 3 processing Selects the audio processing.
Ch 4 processing Selects the audio processing.
6.4.1. Loss of video
Audio
Loss of video
pass
mute
Two selectable actions can take place when input video is removed; pass and
mute.
If it is desirable to maintain audio through the encoder (only valid with AES
inputs), then set this control to pass. When set to mute, the audio will
automatically be muted when video is removed.
6.4.2. Selecting the Audio Source
Audio
Audio Source
Group 1
Group 2
Group 3
Group 4
AES
Up to 4 groups of audio may be embedded on SDI video. This control selects
the group ID of the de-multiplexed audio. In addition, the external AES source
may be selected.
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6.4.3. Additional Audio Delay
Audio
Audio delay
0
-37ms to
5sec in
0.5ms
increments
In addition to delaying the audio the same amount that the video is being
delayed (in the video frame synchronizer), additional user requested delay may
be added or removed with this control.
WARNING: It takes approximately 1 minute, 40 seconds to adjust the audio
delay by one second. This is required by the buffer management algorithm
when changing the audio buffer size at a 1% rate without muting the audio. This
long buffer adjusting will happen on power-up or when a new user supplied
value is set with this control. However, the audio is still usable while the buffer is
being adjusted. This is good for "On-Air" adjustment of audio delays!
NOTE: Advancing audio can only happen when video is undergoing a delay that
is greater than the audio! If the system configured video delay becomes too
small, the audio buffer shrinks to it's smallest delay and stays at that value.
6.4.4. Monitoring the audio buffer tracking
Audio
Audio buffer
This item displays the status of the audio tracking buffer. It can be one of these
states:
• Emptying (-1%)
• Emptying (-30 ppm)
• locked
• Filling (30 ppm)
• Filling (1%)
1% filling or emptying will have a slight pitch change that is near the edge of
human perception for normal audio program material. This mode will be
engaged when a large amount of delay needs to be changed quickly (video
frame drops/repeats).
30ppm filling or emptying will be used to make minor delay buffer changes.
"Locked" will indicate that the video and audio buffers match.
The delay of the audio through the audio buffer always tracks the video except
when the video frame synchronizer drops or repeats frames of video or the user
supplies a different phase of input video. Unfortunately, at these boundary
conditions, we can not simply drop or repeat sections of audio! A rate
conversion process is used to fill or empty the buffer to the needed level. The
process must be spread out over a period of time so that the action is not
audible.
This indicator is mainly used at the Evertz factory and may also be useful to
monitor to help in debugging system issues.
6.4.5. Setting the Analog Levels
There are 4 menu items to adjust the levels of each of the analog audio outputs. For simplicity only the
menu for channel 1 will be shown in the manual.
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Audio
Ch1 adjust
12 to 24
24
The channel output level is adjusted with this control. It has a range of
approximately 12 dB with 1/10 dB resolution. The displayed value is the analog
output level (dBu) corresponding to a 0dB FS digital input signal.
6.4.6. Audio Channels Processing
There are 4 menu items to adjust the routing and processing of the audio outputs. For simplicity only the
menu for channel 1 will be shown in the manual.
Audio
Ch1 processing
Ch1
Ch2
Ch3
Ch4
(Ch1+Ch2)/2
(Ch3+Ch4)/2
Mute
Basic audio channel manipulation is possible with this control.
Any input channel can be routed to any output channel. A mono mix of either
L/R input pair can also be performed. Muting an output is also possible.
6.5. CONFIGURING THE VIDEO CONTROLS
The Video menus are used to configure parameters associated with the video processing functions. The
chart below shows the items available in the Video menu. Sections 6.5.1 to Error! Reference source not
found. give detailed information about each of the parameters.
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7700 MultiFrame Manual
7737CE Composite Encoder with Image Enhancement
Video Processing Selecting this item takes you into the Video Processing Menu
Detail
Enhancement
Selecting this item takes you into the Detail Enhancement Menu
Video standard Selects the input video standard
Loss of video Selects the action to take when the input video is missing
Genlock source Selects the source of genlock timing including free-running.
Free-run freq Sets the VCXO free-running frequency
525 Fine phase Sets the fine phase position of the output signal with respect to NTSC Genlock
reference input.
625 Fine phase Sets the fine phase position of the output signal with respect to PAL Genlock
reference input.
525 H phase Sets the horizontal phase of the output signal to the NTSC Genlock reference
input.
625 H phase Sets the horizontal phase of the output signal to the PAL-B Genlock reference
input.
H Delay Status display that shows the current horizontal input to output delay
525 V phase Sets the vertical phase of the output signal to the NTSC Genlock reference
input.
625 V phase Sets the vertical phase of the output signal to the NTSC Genlock reference
input.
V Delay Status display that shows the current vertical input to output delay
NTSC Color Field
Phase
Sets the color field phase of the NTSC output video
PAL-B Color Field
Phase
Sets the color field phase of the PAL-B output video
Audio buffer Status of audio delay buffer
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7700 MultiFrame Manual
7737CE Composite Encoder with Image Enhancement
6.5.1. Setting the Video Standard
Video
Video standard
NTSC/525
PAL-B/625
Auto
The video standard is selected with this control.
Warning: If you power up the card in a standard opposite to the standard that
is being applied as the genlock source, the OSD will not be readable to change
the standard. You must remove the genlock signal change the standard, then
re-apply the genlock.
6.5.2. Selects the Action to Take when Input Video Is Missing.
Video
Loss of video
Freeze,
Black
The user can either have the output video go to black or freeze the last good
video picture at the input with this control.
6.5.3. Genlock Source Selection
Video
Genlock source
Card ref,
Ref. 1,
Ref. 2,
input video,
none,
not
available
This control allows you to select the reference video for the frame synchronizer
output timing. The reference may either be an externally supplied color black or
you may use the input video as a reference. Optionally, the synchronizer can be
free-run if the "none" option is selected.
If the card is installed in a 7700FR-G frame, two reference inputs are available
on the frame that supply video to every card. Either of these two inputs may be
selected as reference sources.
When genlocking to the input video, make sure to adjust the video H and V
output phase controls to set the total processing delay. The Hand V Delay
indicators show you the time-of-flight of the video and audio through the frame
synchronizer.
Not available will be displayed if the +S option was not purchased.
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