Cobalt Digital COMPASS 9086 Embedded Audio Loudness Processor - Manual (Page 55)

9086-OM (V4.3) 9086-SD PRODUCT MANUAL 3-27
Operating Instructions
9086 Function Submenu List and Descriptions
(continued)
• ATC_VITC Legacy Support Control When enabled, accommodates equipment requiring ATC_VITC packet in
both fields as a “field 1” packet (non-toggling).
Note: Non-toggling VITC1 and VITC2 packets do not conform to
SMPTE 12M-2-2008 preferences. As such, ATC_VITC Legacy
Support should be enabled only if required by downstream
equipment.
Tone Generator
Sets the test tone frequency for each of four tone
generators (Tone Generator 1 thru 4).
• Frequency Selection Lists Selects the frequency for each of the four tone generators. 18 discrete
sine wave frequencies are available, ranging from 50 Hz to 16 kHz
(default frequency is 1.0 kHz).
Note: Unity-gain signal level is equivalent to -20 dBu.
Audio Mixing
Provides down-mix audio routing selections that
multiplexes any five embedded audio channel sources
into a stereo pair (Down Mix Left and Down Mix Right),
or selection of any two audio sources to be mono-mixed
to serve as a monaural source.
• Down Mixer Selection Separate drop-down lists for Left, Right, Center, Left Surround (Ls),
and Right Surround (Rs) inputs allow embedded channel (or silence)
audio source selection for each of the five inputs as shown below.
The example below shows selection from various sources and the
resulting stereo pair DM-L and DM-R. The two signals comprising the pair
can be routed and processed the same as any other audio input source.
Note: The stereo pair are basic L/R PCM signals with no additional
encoded information.
Table 3-2 9086 Function Submenu List — continued
•
•
•
DM-L
L
R
C
Ls
Rs
DM-R
Embedded Ch 1
Embedded Ch 2
Embedded Ch 6
Embedded Ch 4
Embedded Ch 5
Embed Ch 1 - Ch 16