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3.3 Audio Talkback
The audio output on the ENC-100 operates as an audio decoder. It enables operating the
ENC-100 in Full Duplex Audio. The ENC-100 can therefore be used for audioconferencing
environments, where viewers of the encoded live streams are to be able to ask questions and
communicate with people on the encoding side.
For example an encoder can be set up to encode video and audio from a camera that is
installed at an entrance (security application). The person who wants to enter speaks into a
microphone to state his/her name, etc. This would be normal operation with a one-way
communication (simplex mode).
Example 1:
Example 1:
Example 1:
Example 1:
By using the encoder's audio output, a receptionist/security officer is able to talk back
to the person, e.g. arguing why access is denied or that the person should hold its ID
into the camera. This represents regular two-way communication (Full Duplex Mode).
Example 2:
Example 2:
Example 2:
Example 2:
Another application where Full Duplex Audio is necessary is when students from
classrooms or large auditoriums are to communicate with doctors or surgeons inside
operation rooms or other sealed environments. With the ENC-100's Talkback option
students or monitoring staff are able to ask on the spot questions and communicate
and learn in real-time.
To use the Talk Back function on the encoder, you need the following utility:
""""ENC
ENC
ENC
ENC-
-
-
-TALKBACK
TALKBACK
TALKBACK
TALKBACK....zip
zip
zip
zip"
"
"
" –
––
–
You will find the Zip-folder in the IPTV support Area on
www.teracue.com
, inside the Encoder support section.
The ENC-TALKBACK.zip includes the following files:
- audioplugin.ocx:
ActiveX control
- install.bat:
Installation file
- audio_test.html
Example HTML-Page
The audioplugin.ocx is designed as an ActiveX control, so you can simply embed and run it
from a HTML-Page. Currently ENC-Talkback can only be run from inside Internet Explorer.
You can find an easy example of such a Webpage inside the zip file..
To install the audioplugin.ocx please execute the install.bat. The ActiveX control is now
installed.
To run the ActiveX component, it needs to be executed from a HTML-Page.
