Polycom ReadiManagerLX100 Management Manual page 175

Appendix
iPower Admin Setup Menu
Admin Tools :: Audio ::
Audio algorithm for ISDN (H.320) and LAN (H.323) calls
iPower Field
Audio algorithm for ISDN
calls
Audio algorithm for LAN
calls
Encoding law for G.711
iPower Field
Automatic
a-law
μ-law
Admin Tools :: Audio :: Audio Inputs
Microphone
iPower Field
Use echo cancellation
(IDEC)
Use noise suppression
Use Automatic Gain Control
(AGC)
Auxiliary Audio input
iPower Field
Use Automatic Gain Control
(AGC) for auxiliary audio
source
Polycom ReadiManager LX100 User Guide
Audio Preferences
Type Meaning
Pull down menu Please refer to the iPower administrator guide for the specifics
of each protocol.
Pull down menu Please refer to the iPower administrator guide for the specifics
of each protocol.
Type Meaning
Radio button Sets the G.711 encoding law to use when a video call begins.
The µ-law is used in North America and some parts of Japan.
The a-law is used in most European countries and parts of
Japan.
Type Meaning
Check box Integrated Dynamic Echo Cancellation (IDEC) automatically
cancels the echoes caused when microphones pick up sounds
coming from the monitor's speakers. Keep echo cancellation
enabled for normal use..
Check box Filters out background noise from your videoconference, such
as air conditioners or ventilation system noise. Keep automatic
noise suppression enabled for normal use.
Lets the far end hear a constant sound level, even when the
sound level changes at the near end. For example, when a
speaker at the near end moves away from a microphone, the far
end detects no difference in volume. Keep this feature enabled
for normal use.
Type Meaning
Radio button Adjusts Automatic Gain Control for additional audio inputs
(such as a VCR) in order to keep them consistent with PowerMic
volume levels, so that the volume does not change as people
move or different people speak.
Appendix 168