Advanced use | VISION 5000 Videoconferencing System |
Audio input 6 is intended for connection to a VCR. It can also be connected to other external playback devices. As there is no acoustic echo canceller on this input it should not be connected to any microphones. The audio entering this input will be heard from the local speaker.
Mix Mode
‘Auto’ automatically adjusts the weighting of each microphone to obtain the best possible audio and minimizes the background noise. ‘Auto’ will also attenuate the VCR audio when someone talks into a microphone. ‘Fixed’ will keep a constant weighting of all microphones.
Level Settings - Inputs
Audio level:
========= Level Settings =========
Mic1: |
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Mic2: | |
Mic3: | |
Audio4: | — +9.0dB |
Audio5(AUX): | — +9.0dB |
Audio6(VCR): | — +9.0dB |
Previous Menu |
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Adjust the audio input levels according to the parameters of the external audio equipment connected. These levels should be adjusted when installing new audio equipment only. The audio level for the current audio source is displayed in the indicator area. The audio level indicator will make it easier to set correct input level settings. The input level should be adjusted so that the average level reaches the preferred level marker.
The audio inputs are adjustable in steps of 1.5 dB from 0 dB to 22.5 dB.
The default levels for Mic 1,2 and 3 are set for use with an Audio Technica AT871 microphone in an average videoconferencing room. The gain can be adjusted correctly for a wide range of microphones.
A few examples of microphone levels are:
Crown | +3dB |
Audio Technica AT851R | +7dB |
Tandberg Audio Science | +12dB |
Audio 4, 5 and 6 are set to a default level which is adhered to by most manufacturers of
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