Output audio routing/controls, Output audio routing/controls -23, Operating instructions – Cobalt Digital OBSIDIAN 3G 9501-DCDA-3G Downconverter User Manual

Page 51: 9501-dcda function submenu list and descriptions

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9501DCDA-OM (V1.3)

9501-DCDA PRODUCT MANUAL

3-23

Operating Instructions

9501-DCDA Function Submenu List and Descriptions

Output Audio Routing/Controls

Provides an audio crosspoint allowing the audio source
selection for each embedded audio output channel.
Also provides Gain, Phase Invert, and Muting controls
and peak level meters for each output channel.

Note:

Embedded Ch 2 thru Embedded Ch 16 have controls identical to the Source, Gain, Mute, and Phase controls
described here for Embedded Ch 1. Therefore, only the Embedded Ch 1 controls are shown here.

For each channel, its source and destination should be considered and appropriately set. Unused destination
channels should be set to the Silence selection.

• Group Enable/Disable Controls

Allows enable/disable of embedded audio groups 1 thru 4 on card
program video output to accommodate some legacy downstream systems
that may not support all four embedded audio groups.

Note: Changing the setting of this control will result in a noise burst in all

groups. This control should not be manipulated when carrying
on-air content.

• Embedded Output Channel Source

Using the Source drop-down list, selects the audio input source to be
embedded in the corresponding embedded output channel from the
following choices:

• Embedded input channel 1 thru 16 (Emb Ch 1 thru Emb Ch 16)

• Built-in Tone generators Tone 1 thru Tone 16

(all are -20 dBFS level; freq (Hz) in ascending order are 100, 200, 300,
400, 500, 600, 700, 800, 900, 1k, 2k, 4k, 6k, 8k, 12k, and 16k)

Audio LTC

Downmixer L

Downmixer R

• Channel Mute/Phase Invert/Gain Controls

and Peak Level Display

Provides Mute and phase Invert channel controls, as well as peak level
meter for each output channel. (Meter shows level as affected by Level
control.)

Gain controls allow relative gain (in dB) control for each corresponding
destination Embedded Audio Group channel.

(-80 to +20 dB range in 1.0 dB steps; unity = 0 dB)

Note: Although the 9501 can pass non-PCM data such as Dolby

®

E or

AC-3, setting the gain control to any setting other than default 0 will
corrupt Dolby data.

Table 3-2

9501-DCDA Function Submenu List — continued

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