Audio input controls, Audio input controls -11, Operating instructions – Cobalt Digital COMPASS 9066 Upconverter User Manual

Page 53: 9066 function submenu list and descriptions

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9066-OM (V4.5)

9066 PRODUCT MANUAL

3-11

Operating Instructions

9066 Function Submenu List and Descriptions

Audio Input Controls

Controls the AES Audio Input features for the eight AES
pairs, and displays signal status for the AES pairs and
the 16 embedded audio channels. Also provides global
unity routing/parameter control resets.

Note: Also refer to AES Audio Input Advanced Features (p.

1-17) in Chapter 1,“ Introduction” for detailed
information regarding these functions.

• AES SRC

Individual SRC Disable control for each AES pair (1 thru 8) disables or
enables Sample Rate Conversion (SRC) bypass as follows:

Disabled: In this mode, AES SRC for the corresponding AES pair is

bypassed. SRC is set to Disabled by default. This mode is
preferred where the AES rate matches the input video rate. This
mode is necessary when embedding non-PCM AES audio such a
Dolby

®

E or Dolby Digital™ audio streams.

Note: In this mode AES rate must match the input video rate or

audio dropouts will occur.

Note: AES audio must be nominally 48 kHz.

Enabled: In this mode, AES SRC for the corresponding AES input

pair is enabled. SRC enabled allows the 9066 to interface with
asynchronous AES sources (sources in which the AES timing does
not match the video reference timing). SRC can be used to
compensate for minor clock rate differences in the AES stream and
the input video stream.

• AES Passthrough

Individual AES Passthrough On/Off control for each AES pair (1 thru 8)
disables or enables Passthrough as follows:

Off: Disables AES passthrough for the selected AES input pair.

Passthrough is set to Off by default.

On: Passthrough is turned on, with the corresponding AES output

pair to act as a bit-for-bit copy with zero delay of the corresponding
AES input pair.

Note: AES Passthrough set to On overrides normal audio routing.

Gain and polarity control is not available when AES
passthrough is enabled.

• Zero Delay Embedding

Individual AES Zero-Delay Embedding On/Off control for each AES pair
(1 thru 8) disables or enables Zero-Delay Embedding as follows:

Off: Disables Zero-Delay Embedding for the selected AES input

pair. Zero-delay embedding is set to Off by default.

On: The selected pair directly embeds into its corresponding group

(AES Pair 1 embeds into embedded channels 1 and 2; AES pair 2
embeds into embedded channels 3 and 4, and so on) with the
normal frame sync audio delay being bypassed.

Note: Zero Delay Embedding overrides the standard audio routing

system. For example, if AES Pair 1 is selected, then the
controls to route into embedded channels 1 and 2 will not
apply. Gain and polarity control is not available when
zero-delay embedding is enabled.

Table 3-2

9066 Function Submenu List — continued

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