Linear Acoustic AERO.mobile, User Manual

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Linear Acoustic AERO.mobile User Guide Applications
18
Existing Services
Encoding, Multiplexing and Modulation
Mobile Program(s)
(SDI)
ATSC DTV (A/53):
ATSC Mobile DTV (A/153):
AERO.mobile
Figure 3-1
AERO.mobile general application
The second processor in AERO.mobile has the ability to accept stereo, dual channel
mono, or single channel mono. It can also turn a stereo program into mono. This can be
helpful for dialogue only programs by allowing the mobile audio encoder to be run at a
lower bitrate. The second processor can also be commanded to switch the main program
in place of the secondary program.
3.2 Standard plus Mobile Application
Figure 3-2 shows how an AERO.mobile can be installed alongside a new or existing
AERO.air or AERO.one main channel audio processor. Since it is likely that the video en-
coders for both the mobile and the standard DTV channels will be located near each other,
this is a likely scenario.