TANDBERG TC3.0 manual Audio settings

TANDBERG Codec C90 and Profiles using C90 Administrator guide

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The Audio settings, cont...

Audio Input Line [1..4] Level

Defines the input level of the selected Line input connector in steps of 1dB from 0dB to 24dB.

See the Audio Level tables in the Physical Interfaces Guide for the codec for a complete overview of the menu values represented in dB.

Valuespace: <0..24>

Range: 0 to 24dB

Example: Audio Input Line 1 Level: 10

Audio Input Line [1..4] LoopSuppression

Loop suppression detects whether a delayed signal loop is present from an audio Line output to an audio Line input on the codec. If a loop is detected this unwanted feedback is suppressed.

NOTE! Only loops between line output 3 and line input 3, and between line output 4 and line input 4 are suppressible.

Valuespace: <On/Off>

On: Set to On to activate Loop Suppression.

Off: Set to Off to deactivate Loop Suppression.

Example: Audio Input Line 3 LoopSuppression: On

The Audio settings, cont...

Audio Input Microphone [1..8] Equalizer Mode

Determines whether or not the selected equalizer is enabled.

Valuespace: <On/Off>

On: Use the selected equalizer

Off: No equalizer

Example: Audio Input Microphone 1 Equalizer Mode: Off

Audio Input Microphone [1..8] EchoControl Mode

The echo canceller continuously adjusts itself to the audio characteristics of the room and compensate 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.

Valuespace: <On/Off>

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.

Off: Echo Control should be switched Off if external echo cancellation or playback equipment is used.

Example: Audio Input Microphone 1 EchoControl Mode: On

Audio Input Line [1..4] Mode

Determines whether or not an Audio Line input is enabled.

Valuespace: <On/Off>

On: Set to On to enable the Audio Line input.

Off: Set to Off to disable the Audio Line input.

Example: Audio Input Line 1 Mode: On

Audio Input Microphone [1..8] Equalizer ID

Select equalizer ID[1...8]

Valuespace: <1..8>

Range: Select EqualizerID 1 to 8.

Example: Audio Input Microphone 1 Equalizer ID: 1

Audio Input Microphone [1..8] EchoControl NoiseReduction

The system has a built-in noise reduction which 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. Requires the Echo Control Mode to be enabled for the selected microphone.

Valuespace: <On/Off>

On: The Noise Reduction should be set to On in the presence of low frequency noise.

Off: Turns Noise Reduction Off for the selected microphone connector.

Example: Audio Input Microphone 1 EchoControl NoiseReduction: On

Audio Input Microphone [1..8] VideoAssociation MuteOnInactiveVideo

Enable association of a video source to the selected microphone connector.

Valuespace: <On/Off>

On: A video source is associated, and the audio will be muted if the associated video source is not displayed.

Off: No video source is associated.

Example: Audio Input Microphone 1 VideoAssociation MuteOnInactiveVideo: On

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