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Dialogic

System Release 6.1 CompactPCI for Windows

Release Update 136

CSUMS_SmartScalingPartiesMinNum

Number: 0x3b04

Description: Specifies the number of talkers in a conference before scaling mode is enabled.

Values: 0 [default] to 0xff (255).

Guidelines: Audio conferencing provides a mechanism for audio summation of two or more

parties in a conference. There are three possible summing modes, which are controlled by

CSUMS parameters 0x3b03 and 0x3b04 in the configuration file.

By default, both active talker and scaling are enabled. When parameters 0x3b03 and 0x3b04 are

both set to their default values of 0, the default summing mode is Active Talker Summation mode,

which sums the three loudest parties. This is advantageous in large conferences. Since only the

three loudest parties are summed, background noise is reduced. However, there may be times with

small conferences when a different summation mode is preferable, for example, with soft speakers

or when the energy is too low (as with analog lines). The other summation modes are:

• Smart scaling mode - the summation of all parties, but scaling is only done on the ones who

are talking.

• No scaling - pure summation, can be used if you want full voice energy in the conference.

The settings for parameters 0x3b03 and 0x3b04 determine the summing mode as shown in the

following table.

To disable the Active Talker algorithm, set the parameter 0x3b03 to a value larger than the

maximum number of conferences per DSP; setting it to Conf_MaxTotalParties, or per board total

number of parties, will suffice, to a maximum of 255.

Even without Active Talker, scaling is also enabled by default. If not required, set the parameter

0x3b04 to a number larger than the maximum number of parties per DSP, and again using

Conf_MaxTotalParties will suffice, to a maximum of 255.

Update to Section 6.10, [lineAdmin.x] Parameters (Digital Voice)

In the guidelines for the SignalingType parameter, the note about NFAS D channel

backup (DCBU) supported only on ISDN NI-2 protocol is incorrect. DCBU is

supported on 4ESS, 5ESS, and NI-2.

Update to Section 6.21, [CHP] ISDN Protocol Variant Definitions (IPY00045267)

The values shown for the ProtocolType parameter are incorrect. The correct values

for the ProtocolType parameter are:

• 1: 4ESS

• 2: 5ESS

Parameter 0x3b03,

CSUMS_ActTalkerPartiesMinNum

Parameter 0x3b04,

CSUMS_SmartScalingPartiesMinNum

Summing Mode

0 (default 0 (default) Active Talker Detection

(default)

> Conf_MaxTotalParties 0 (default) Smart Scaling

> Conf_MaxTotalParties > Conf_MaxTotalParties No Scaling

Conf_MaxTotalParties is the setting for parameter 0x3926 in the configuration file, e.g.,

SetParm=0x3926,120 !Conf_MaxTotalParties

1 2 ... 131 132 133 134 135 136 137 138 139 140 141 ... 160 161

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Advantech MIC-3369C Guía de instalación Pagina 136

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