Additional Conferencing Information

Automatic Muting of Noisy Endpoints

Automatic muting of noisy endpoint is not applicable for RealPresence Collaboration Server 1800.

Automatic muting of noisy endpoints is applicable only in AVC video conferences and audio-only (non-SAC) conferences.

The Collaboration Server can detect AVC-enabled endpoints with a noisy audio channel and automatically mute them, reducing the noise heard by other conference participants. When the auto muted endpoint becomes the speaker the endpoint is automatically un-muted by the system. If the speaker halts his/her conversation and the line still emits noises, the endpoint will be automatically muted again.

When the endpoints are automatically muted by the MCU, no indication is displayed in the Collaboration Server Web Client or RMX Manager as the system does not consider it as a deliberate mute.

Guidelines for Automatically Muting Noisy Endpoints

The automatic muting of noisy AVC-enabled endpoints can be used according to the following guidelines:

The Auto mute noisy endpoints check box in the Profile Properties - Audio Settings dialog box is enabled only when the ENABLE_SELECTIVE_MIXING flag is set to YES (default).

It affects only AVC-based and audio only endpoints (non-SAC endpoints)

It does not affect SVC-based endpoints

It is supported in CP conferences and in Mixed CP and SVC conferences.

In a mixed CP and SVC conferences, only the AVC-based endpoints can be automatically muted. If the noisy endpoint is SVC-based, its audio channel will not be sent to the AVC-based endpoints, but it will be sent to the other SVC-based endpoints.

MCU reset is not required when changing the ENABLE_SELECTIVE_MIXING flag setting.

When upgrading from a version prior to 8.1, the Auto mute noisy endpoints option is not automatically enabled in the existing Profiles and it has to be manually enabled, if required.

In new Profiles that are created after the upgrade, the Auto mute noisy endpoints option is automatically enabled.

If your conferencing environment includes the Polycom DMA, the conferences that are started from the DMA will not include the Auto mute noisy endpoints parameter as it is not part of the DMA Profiles. In such a case, when the parameter setting is unknown, the system will enable or disable the automatic muting of noisy endpoints according to the flag setting - if the flag is set to YES, it will be enabled in the conference.

Sounds with the frequency of noise, such as applause and certain background music, may be also be muted.

The following table summarizes the state (enabled or disabled) of the Automatic muting of noisy endpoints feature depending on the ENABLE_SELECTIVE_MIXING flag setting and the Auto mute noisy endpoints setting in the Profile Properties - Audio Settings:

Polycom®, Inc.

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Polycom 1500/1800/2000/4000 manual Automatic Muting of Noisy Endpoints, Guidelines for Automatically Muting Noisy Endpoints