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7700 MultiFrame Manual
7735AVC-LB Video Composite Encoder and Audio DAC with SoftSwitch
7.4.1. Selecting the Audio Source to Monitor
Audio
Audio source
Group 1
Group 2
Group 3
Group 4
7.4.2. Swapping the Audio Channels of a Channel Pair
Audio
Ch1/ch2 swap
No
Yes
7.4.3. Selecting Whether a Channel Pair Is Monitored In Stereo Or Mono
Audio
Ch1/ch2 output
mode
Stereo
Mono
7.4.4. Setting the Analog Peak Audio Output Level for a Channel Pair
Audio
Ch1/ch2 peak
output level
8 to 24 dBu
14 dBu
7.4.5. Setting the Analog Levels - Fine Adjust
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.
Audio
Fine ch1 adjust
-128 to 127
0
7735AVC-LB - 18
Up to 4 groups of audio may be de-embedded from and re-embedded in the
incoming SDI video. This control selects which one of the four to de-embed,
monitor and re-embed. There are four green LEDs under the PCB to
indicate which of the four groups are currently present on the input video.
This control, if set to Yes, routes the two channels or a channel pair to the
opposite channel output of the pair.
This control, if set to Mono, adds the two channels of the pair, reduces the
summed amplitude by 2 (to keep consistent operating levels), and routes
this mono signal to both analog audio outputs or the channel pair.
This control sets the analog audio outputs of a channel pair to the desired
operating level in 1 dB increments. The value selected corresponds to the
output level when a 0 dB FS input signal is applied. To adjust the levels
independently, or to fine tune the levels, use the Fine controls for the
respective channels.
The channel output level is adjusted with this control. It has a range of
approximately +/- 3 dB with 15mdB resolution.
Revision 1.6
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