User manual

4–20 • Menus ADC-8733A User Manual (Iss. 02B)
• OFF — The audio embedding feature is disabled.
2 - Embed Group Select
Use this menu to specify which group to embed the audio into (Group 1 to 4).
3 - Audio Delay
This menu controls the amount of additional delay to be added to the input audio before it is
embedded. The audio delay is entered in milliseconds and has a range of 0-5000ms (5 seconds).
Note that the minimum audio delay is based on the Timing Mode, Horizontal Delay, Vertical
Delay, and Video settings and is in addition to the Minimum Delay. This menu only applies to the
ADC-8733A-C and ADC-8733A-SC.
•If the Timing Mode is set to Frame Sync, 1 frame of delay is added to the minimum
audio delay. When using NTSC, this is equal to 33mS. When using PAL, this is equal to
40mS.
• The Horizontal Delay and Vertical Delay settings are also applied to the minimum
audio delay.
• If the card is not set to Frame Sync Mode, and the Horizontal and Vertical Delay settings
are set to 0, the minimum inherent delay for the audio is 3mS.
4, 5, 6, 7 - Channel Source
Use these menus to map the analog input channels to the embedded channels within the
embedded group. Any input channel can be routed to any, or all, of the embedded channels within
the selected group. This menu is only applicable for the ADC-8733A-C and ADC-8733A-SC.
8, 9, A, B - Audio Input Gain
Use this menu to adjust the audio gain for each input of the AAM-8581 over a range of ±10dBu in
increments of 0.05dBu. The audio is adjusted on the AAM-8581 in the analog domain before the
A-D conversion for maximum signal resolution. This menu only applies to the ADC-8733A-C
and ADC-8733A-SC.
C - Silence Threshold
This menu selects the audio threshold for silence from a range of -84dBFS to -6dBFS in
increments of 6dBFS. The value selected defines silence for the input audio level and influences
when the “No Input” error message is displayed in the Audio Input Status field of DashBoard.
This menu is only applicable for the ADC-8732B-C and ADC-8732B-SC.
E - Audio Configuration Reset
This feature enables you to reset the audio settings to the factory default values. This option is
only available for the ADC-8733A-C and ADC-8733A-SC.