BBG-1034-AUDPRO-OM (V1.1)
BBG-1034-AUD-PRO PRODUCT MANUAL
3-31
Setup/Operating Instructions
BBG-1034-AUD-PRO Function Menu List and Descriptions
Video Delay Controls
Provides video delay controls. These controls are used
to restore lip sync when using audio DSP functions
such as RTLL and Dolby encoding.
Note:
On device licensed with Add Framesync (option +FS), this tab does not appear. On device with +FS, use the frame
sync output video reference offset and frame delay controls to delay the video to match audio delay as described in
Framesync (p. 3-25).
• Video Delay Enable/Disable Control
Provides master enable/disable of video delay functions/controls.
• Output Video Offset Controls
With Video Delay enabled, provides the following controls for offsetting
the output video from input video:
• Vertical (Lines) – sets vertical delay (in number of lines of output
video) between the output video and input video. (Positive values
provide delay; negative values provide advance)
(Range is -1124 thru 1124 lines; null = 0 lines.)
• Horizontal (
µ
s) – sets horizontal delay (in
µ
s of output video) between
the output video and input video. (Positive values provide delay;
negative values provide advance)
(Range is -64 thru 64
µ
sec; null = 0.000
µ
sec.)
Note: Offset advance is accomplished by hold-off of the
reference-directed release of the frame, thereby effectively
advancing the program video relative to the reference.
• Frame Delay Control
Minimum Latency Frames Control
When Video Delay is enabled, specifies the smallest amount of latency
delay (frames held in buffer) allowed by the delay. The Video Delay will
not output a frame unless the specified number of frames are captured in
the buffer. The operational latency of the frame sync is always
between the specified minimum latency and minimum latency plus
one frame (not one field).
Note: Due to device memory limits, the maximum available Minimum
Latency Frames is related to the output video format selected.
When using this control, be sure to check the Report Delay
display to make certain desired amount of frames are delayed.
• Video Delay Display
Displays the current input-to-output video delay (in msec units) as well as
in terms of Frames/fractional frame (in number of lines).
Note:
Audio timing offset from video is performed using the delay controls on the Input Audio Routing/Controls tab. Refer to
Input Audio Routing/Controls (p. 3-33) for these controls.
Table 3-1
BBG-1034-AUD-PRO Function Menu List — continued
Status display shows total input-to-output video delay, along
with any framesync delay.