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46 • Front Panel Menu System SRG-4500 User Guide (v7.0)
Audio Menus
Each video output has audio channels associated with it:
• SDI 1 has 16 embedded audio channels
• SDI Black 1 has 16 embedded audio channels,
• SDI 2 has 16 embedded audio channels
• SDI Black 2 has 16 embedded audio channels,
• Composite 1 has 16 audio channels in 8 AES pairs
• Analog Audio has 2 audio channels in a stereo pair.
This makes a total of 82 audio channels.
Each channel can be individually controlled for frequency, gain, interrupt and dBFS.
Odd numbered channels 1, 3, 5, 7, 9, 11, 13 and 15 are referred to as LEFT.
Even numbered channels 2, 4, 6, 8, 10, 12, 14 and 16 are referred to as RIGHT.
In some circumstances, channels are grouped in pairs, or larger formations. When this occurs, associated menu
selections are unavailable and 'menu information' is substituted:
• Glits groups channels in pairs.
• Blits groups the first 6 channels.
Table 7.1 outlines the general form of the Audio menu appears below for the SDI1, SDI2 and AES channels.
Figure 7.5 Audio Menu Example
Audio Channel
This menu item allows the user to select which audio output they are operating on.
The
Audio Channel field consists of three sub-fields. One item from each of the following columns will always
appear in the three sub-fields, although not all combinations are valid.
Table 7.1 Audio Channel
Sub-field 1 Sub-field 2 Sub-field 3
SDI1
SDI2 Pattern
Black Left
Right
dBFS Silence =
Audio Type Audio =
Sequence Tone =
Interrupt Off =
Gain -60dB =
Spot Frequency Step 1KHz =
Tone Type = 400Hz