Background Noise Suppression (Bns) - Polycom SoundPoint IP 600 SIP Administrator's Manual

Administrator Guide - SoundPoint

3.3.9 Background Noise Suppression (BNS)

This feature, designed primarily for handsfree operation, reduces background noise to
enhance communication in noisy environments.
Central
(boot
server)
Local
3.3.10 Comfort Noise Fill
Comfort noise fill is designed to help provide a consistent noise level to the remote
user of a handsfree call. Fluctuations in perceived background noise levels are an
undesirable side effect of the non-linear component of most AEC systems. This fea-
ture uses noise synthesis techniques to smooth out the noise level in the direction
toward the remote user, providing a more natural call experience.
3.3.11 Automatic Gain Control (AGC)
This feature, applicable to handsfree operation, is used to boost the transmit gain of the
local talker in certain circumstances.
radius and helps with the intelligibility of soft-talkers.
Central
(boot
server)
Local
2. AGC support will be available in a subsequent release.
®
IP
Configuration file: Specify whether BNS is enabled for each of handset, head-
ipmid.cfg set, and handsfree and the degree of suppression during
periods of speech and during silence periods.
•
Web Server None.
(if enabled)
Local Phone User None.
Interface
2
Configuration file: Specify whether AGC is enabled for each of handset, head-
ipmid.cfg set, and handsfree. AGC is recommended only for hands-
free operation.
•
Web Server None.
(if enabled)
Local Phone User None.
Interface
Copyright © 2004 Polycom, Inc.
For more information, see 4.6.1.6.6 Background Noise
Suppression <NS/> on page 75.
This increases the effective user-telephone
For more information, see 4.6.1.6.7 Automatic Gain
Control <AGC/> on page 76.
Features
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