CLI Command Reference
talkback
Makito User’s Guide, v2.1.0, Issue 01
247
talkback
S
YNOPSIS
talkback start
talkback stop
talkback set
talkback get
talkback clear
D
ESCRIPTION
The
talkback
command is used to manage audio talkback settings.
The Audio Talkback feature allows two-way audio communication using the Makito
encoder’s Audio Output to function like an audio decoder.
The Talkback is sent by a software player application (such as HaiPLAY v1.4.0.4) to the
Makito, where it is played out of the encoder’s 8-pin terminal block connector. See
The Talkback application receives the 16-bit audio (mono) at 22.05 kHz rate, packetizes it
to 440 16-bit samples (the last 4 bytes are reserved), and transmits them to Makito UDP
port 9177.
NOTE
The source UDP port of sender does not matter; however, the destination has to
match what is configured on the encoder (
9177
by default).
There is no audio mixer on the Makito, so the encoder handles the talkback sessions on a
first-come first-serve basis. To prevent a single user from monopolizing the Makito talk-
back, the software player application must provide “push-to-talk” functionality, which
requires that the talkback user physically push and hold a button (for example by pressing
the mouse button). When the button is released, the talkback application stops sending
audio. The Makito considers the session terminated if it does not receive a packet for a
duration of one second (i.e., after at least one second of inactivity). The Makito is then
ready to accept the session (talk-back packets) from another device.
Talkback audio is configured and controlled using CLI commands only. It is not configu-
rable through the Web interface, or SNMP in the current release.
A
CTIONS
start
Starts reception of talkback audio
stop
Stops reception of talkback audio