Advanced Use | TANDBERG Director Videoconferencing System |
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Echo Control
Each of the 3 microphone inputs and Audio input 4 have a separate echo canceller. One echo canceller per input provides more sophisticated control than having one common canceller for all microphones.
Echo control is normally set to ‘On’ to prevent the far end from hearing their own audio. Once selected, echo cancellation is active at all times. The echo canceller continuously adjusts itself to the audio characteristics of the room and compensates for any changes it detects in the audio environment. If the changes in the audio conditions are very significant the echo canceller may take a second or two to readjust.
You can choose to switch off the echo canceller for the available audio sources.
Noise Reduction
N O T E
ECHO CONTROL SHOULD BE SWITCHED ‘OFF’ IF EXTERNAL ECHO CANCELLATION OR PLAYBACK EQUIPMENT IS USED. IT IS YOUR ECHO CANCELLER THAT IMPROVES THE AUDIO QUALITY EXPERIENCED BY THE OTHER SITE. WHEN YOU HEAR AN ECHO OF YOUR OWN AUDIO IT IS MOST LIKELY THE FAR END’S ECHO CANCELLER THAT IS MALFUNCTIONING.
In addition to echo cancellation, the system has
NR reduces constant background noise (e.g. noise from
Choose ‘On+NR’ to activate both Echo Control and Noise Reduction.
Room Size
This setting allows optimization of the echo canceller to the acoustic size of the room. Hard walls, many windows etc. might require higher settings than expected. Carpets, curtains etc. might require lower settings. Adjust the setting (NOTE: on the far end) if one of the following symptoms occur:
•There is still some echo of your own audio. Increase the setting.
•The system adapts slowly to acoustic changes in the room. Decrease the setting.
After a change, the system will need a few seconds to
Motion
If you experience echo caused by movements in the room, increase the value.
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