Polycom 8 manual 11-24, Enhanced Video

Chapter 11 - Managing Participant Templates

Table 11-5: Advanced Parameters for H.323 Video Participant

Option	Description
Enhanced Video	This option is applicable to standard Video cards and
	is not required for participants connecting to
	conferences running on the Video+ cards (the
	VIdeo+ card provides the high quality video
	combined with high Line Rates using one video
	codec).
	The MGC Manager can provide high quality video
	(30 frames per second for incoming and outgoing
	video streams) for line rates up to T1/ E1 in
	Transcoding and Continuous Presence conferences.
	This is done by allocating two video codecs to the
	participant instead of one. One of the video codecs is
	used for encoding, while the other is used for
	decoding the incoming video stream.
	Select this check box to enable the high quality video
	feature for the participant.
Enhanced Video	Note:
(con’t)	• In a Video Switching conference, this field is
	disabled.
	• To work with 30 frames per second the High
	Frame Rate flag in the system.cfg must be
	enabled.
	• To work with bit rates higher than 768 Kbps, the
	High Bit Rate flag in the system.cfg must be
	enabled.
	• During an On Going ISDN/ATM/MPI connected
	conference this setting may be greyed out.
AGC	The Auto Gain Control mechanism regulates noise
	and audio volume by keeping the received signal to
	all participants balanced. Different endpoints and
	phones produce different types of source noise and
	volume. The Auto Gain Control mechanism can be
	applied to all incoming audio streams prior to mixing,
	thereby dynamically changing the amplification of the
	input signal providing a constant output amplitude.
	Select this check box to enable Auto Gain Control
	(AGC) for the participant.

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