Cobalt Digital Inc 9932-EMDE, Руководство по эксплуатации продукта, Страница: 18 / 104

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9932-EMDE Functional Description
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9932-EMDE PRODUCT MANUAL 9932EMDE-OM (V1.4)
Flex Buses.
For both input and output nodes before and after the card
internal buses, flex buses provide flexible-structure mixer in which any of 16
summing nodes (
Flex Mix Bus A
thru
Flex Mix Bus P
) can receive any card
audio input, thereby allowing several customizable mixing schemes.
Similarly, any of the 16 card internal bus signals can be applied to an output
flex bus mixer. The output flex bus allows cross-sourcing from both
Path 1
and
Path 2
embedded internal Audio Bus sources to the Path 1 and Path 2
discrete output audio crosspoints.
Text-To-Speech.
(Option
+TTS
) Cobalt Digital
+TTS
is a
complete 21CVAA digital text-to-speech generation / audio insertion solution
for embedded and discrete audio systems.
+TTS
is available as a software
option for 9932-EMDE cards.
+TTS
interfaces with industry standard Windows Share folder systems to
receive non-proprietary text, XML, or similar plain text files, and converts
and inserts realistic human-voice audio into user-configured audio channels
(typically an SAP channel pair intended for this playout).
+TTS
allows for
prioritization based on the organization's discretion (for example, severe
weather alerts out-prioritizing school closings). Alert tones are inserted over
the main program channels to alert the visually impaired that emergency
content is to occur on the SAP channel. Alerts can be played a configurable
number of times, and alerts with higher priority can interrupt current lists for
breaking news. Once the interrupt message is broadcast,
+TTS
automatically
reverts to normal audio programming. Refer to +TTS Manual Supplement
OPT-TTS-MS for detailed information and installation/setup instructions.
This supplement is furnished with the option.
2.0-to-5.1 Upmixer. (Option
+UM
) The 2.0-to-5.1 upmixer
function receives a normal PCM stereo pair from any internal audio bus
channel pair. The stereo pair is upmixed to provide 5.1 channels (Left (
L
),
Right (
R
), Center (
C
), Low Frequency Effects (
LFE
), Left Surround (
Ls
), and
Right Surround (
Rs
)). Whenever the upmixer is active, it overwrites the six
selected 5.1 output channels with the new 5.1 upmix signals (including
replacing the original source stereo
L
and
R
inputs with new
L
and
R
signals).
The 2.0-to-5.1 upmixer can be set to upmix in any of three modes: Always
upmix, Bypass upmix, or Auto enable/bypass upmixing. The Auto upmixing
mode looks at the signal levels on the selected channels and compares them to
a selectable level threshold. It then determines whether or not to generate 5.1
upmixing from the stereo pair as follows:
•
If the upmixer detects signal level below a selected threshold on all
three of the selected channels designated as
C
,
Ls
, and
Rs
, this
indicates to the upmixer that these channels are not carrying 5.1. In
this case, the upmixer produces new 5.1 content generated by the
upmixer.