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Linear Acoustic AERO.mobile User Guide
data extracted from the Vertical Ancillary (VANC) of an applied HD-SDI signal. For
VANC metadata there are several other settings:
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MD = 2/0 Pgm Sel: Describes which consumer metadata program will be used to
control the processing. Default and most common is Pgm 1 and this is the default.
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MD = 2/0 Function: Describes what will be controlled when the selected metadata
program has an audio coding mode (acmod) of 2/0. Selections include:
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Pri/Sec Dialnorm: Specifies the "fallback" dialnorm value which will be used if meta-
data is not applied or if it fails. Separate values for Primary and Secondary programs.
Default is 24.
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Apply Dialnorm: Yes/No - If set to yes, then the incoming dialnorm parameter is
applied to the incoming audio to scale it prior to processing. If dialnorm was set cor-
rectly upstream, then the processing will be minimal. If dialnorm does not match the
audio, the AERO.mobile will realign it in real time. Default is Do Not Apply.
4.4.11 Ch 7/8 Out Src
Selects the function of each GPI input. Selections are:
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ALT: Allows selection of external audio present on the 7/8 input.
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Downmix: Allows channel 7/8 output to come from secondary processing core in
MB1+MB2 mode, or the downmix of the Primary program. This is the default.
NOTE: Ch 7/8 Out Src will be inactive if GPI is active and GPI will control this mode.
VANC MD is Async: Disabled for standard VANC metadata, Enabled for
CBS-style VANC metadata. Default is Disabled.
VANC MD DID/SDID: Selects the Data ID and Secondary Data ID of the
metadata signal in hex. SMPTE RP2020 recommends DID be set to 0x45 and
SDID be set to 0x01 and these are the defaults.
VANC MD Line: Selects the video line to extract VANC metadata from.
SMPTE RP2020 recommends that metadata be inserted on Line 9, but we have
seen a great deal of variation, thus the default is Auto.
Chan Mode 2/0: Mutes Inputs 3-6 as described above, or None.
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Detailed Operation
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