Audio Settings

The following settings can be adjusted in the audio tab.

Sound Profile

Custom: 7-band equalizer for manually adjusting the sound settings.
Off: No sound profile is activated.

Input Level (digital)

Automatic:

The Dante input gain setting will be adjusted automatically (see below: Automatic AEC Reference Input Gain).

Manual:

The Dante input gain setting will be adjusted manually in steps of 3 dB in the range between +9 dB and -60 dB.

Automatic AEC Reference Input Gain

This feature automatically adjusts the Dante input gain setting for internal far-end detection according to the level and noise floor of the far-end audio. Enabling this feature is recommended in order to improve the AEC performance of connected devices if the static or background noise floor of far-end participants often changes.

External AEC Reference Channel

For especially challenging teleconferencing setups it can be helpful to use an external AEC reference channel to support echo cancellation. The external AEC reference channel can be added to the TeamConnect Ceiling 2 / TeamConnect Ceiling Medium via the Dante input ports.

For initial configuration of the external AEC reference channel the following possibilities are in place.

Slider for adjusting the input gain of the digital audio input, when an external AEC reference channel is used.
Switch for visualizing the far end activity via the LEDs of the TeamConnect Ceiling 2 / TeamConnect Ceiling Medium.

When this function is activated, the LEDs will light up blue. When a far end signal is present, the dynamic beamforming will freeze in a static 90° beam, which is indicated by the LEDs lighting up yellow.

This mode is only recommended during initial configuration. If the mode is not deactivated, it will switch off automatically after 30 minutes.

Audio Output (analog)

Sets the attenuation of the gain at the analog audio output.

Slider for attenuating the analog audio output level by up to -18 dB.

TruVoicelift

TruVoicelift activates certain algorithms for the microphone output signal in order to mitigate the risk of feedback from the loudspeakers and to improve the audio signal for local output.

Mute Threshold: The mode has an inbuilt automatic mute function which will temporarily shut down the output in case the microphone level exceeds the set level of the Mute Threshold. With the slider you can adjust the Mute Threshold according to the microphone level from -50 dB to -3 dB in steps of 1 dB.

Emergency Interval Time: The Emergency Interval Time allows to set a period of time for how long the microphone should be muted after the Mute Threshold has been exceeded. With the slider you can adjust the interval time from 1 s to 30 s in steps of 1 s.

Noise Gate Settings

Noise Gate can be activated to avoid amplification of background noise, e.g. during pauses in speech.

Threshold: The Noise Gate will open the audio of the microphone output only after the predefined threshold value of the needed microphone has been reached. With the slider you can adjust the minimum threshold level from -90 dB to -40 dB in steps of 1 dB.

Hold Time: The Hold Time sets the duration until the noise gate is activated, e.g. during speech pauses. With the slider you can adjust the duration time from 50 ms to 1000 ms in steps of 50 ms.

Output signal (your device)

Defines the volume of the digital audio output signal (your device).

Slider for adjusting the digital audio output level from 0 dB to +24 dB in steps of 3 dB.
Slider for setting a transmission delay of 0 to 100 ms in steps of 1 ms.

Output signal (far end)

Defines the volume of the digital audio output signal from the far end (connected participants).

Slider for adjusting the digital audio output level from 0 dB to +24 dB in steps of 3 dB.
Slider for setting a transmission delay of 0 to 100 ms in steps of 1 ms.

Microphone Level

Displays the microphone level.

Location based mute

Part of group: Activate this function to add the transmitter to a mute group. If then one of the transmitters in this mute group is muted or unmuted, all other transmitters in the same mute group of the same location will also be muted and unmuted simultaneously. This allows you to create a separate mute group for each location.

Deactivated: The transmitter is not part of a mute group. Muting or unmuting does not affect other transmitters.

The most recently saved status is retained even after you reset the device or the audio settings to the factory defaults.

Mute

Immediately mutes the audio outputs of the selected device.

Sensitivity Threshold

With the Microphone Sensitivity Threshold, the microphone adjusts to the background noise to better identify the speaker. Depending on the setting, the sensitivity is either amplified or attenuated.

Normal (factory setting): recommended setting for speakers with a normal conversation volume.
Quiet: recommended setting for speakers with a quiet conversation volume. The sensitivity of the microphone is increased.
Loud: recommended setting for speakers with a loud conversation volume (e.g. in a room with a lot of background noise). The sensitivity of the microphone is attenuated.

Intelligent Noise Control

The INC feature is a two-step process that enhances the voice tracking and beamformer stability in noisy environments (e.g. by fans, HVAC, racks, …).

Step 1:

Noise Detection: Advanced DSP algorithms scan and remove static background room noises picked up by microphone capsules, allowing for enhanced voice tracking and beam processing (this feature is always active).

Step 2:

Noise ControlRemaining static noises can be further suppressed according to user preference. Three levels of preset suppression are available:
- Low (-6 dB)
- Mid (-12 dB)
- High (-24 dB).

Installation Type

Flush Mount: recommended setting if the ceiling microphone array has been installed in or directly underneath the ceiling.
Suspended Mount: recommended setting if the ceiling microphone array has been suspended from the ceiling.

Audio Default Settings

Resets the audio settings (Low Cut and Sound Profiles) to the factory defaults.

The last status saved in the “Location-based mute” field is retained even after you reset the audio settings to the factory defaults.