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TANDBERG 1500 MXP
80
The default level for the microphone is set to +3 dB.
Audio inputs VCR Left/Right are set to a default level which is adhered to by most
manufacturers of audio-visual equipment and is a level at which most audio-visual equipment
(CD-players, VCRs or DVDs) will work.
4.5.2 Outputs
(not for TANDBERG 1500 MXP and 2000 MXP, software version F1)
Audio Out
Audio out is internally connected to the monitor loudspeakers. The signal is a mix of audio
from far end and local end Audio in (VCR Left/Right).
If an output is Off, no audio will be sent to that output.
Level Settings
Adjust the audio output level to the loudspeakers.
The volume keys on the remote control also adjust the level of the audio output.
4.5.3 Echo Control
Microphone
The microphone input has an acoustic echo canceller. In addition to echo cancellation, the
system has built-in noise reduction (NR). NR reduces constant background noise (e.g. noise
from air-conditioning systems, cooling fans etc.). In addition, a high pass filter (Humfilter)
reduces very low frequency noise.
On:
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 re-adjust.
Off:
Turns off the echo canceller.
On+NR:
Activates both Echo Control and Noise Reduction.
Note that 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.