Sennheiser ADN D1 Instructions for Use - Page 132

Using the "Conference Manager" software Adjusting the processing of the conference units' audio signals in the floor channel The sum of the audio signals of all conference units is fed to the floor channel which in turn is output via the conference units' built-in loudspeakers and via the OUT audio output. The volume level of the floor channel increases with each additional audio signal* and tends to overmodulate. The "Audio Gain Reduction" menu item allows you to adjust how the volume levels of the signals of the conference units are processed. Situation Event Behavior The audio signal of the 1. conference unit it fed to the floor channel. The audio signal of another conference unit is fed to the floor channel. The volume level of the floor channel would increase if the signal wasn't influenced. "0.0 dB per Mic" ... "-3.0 dB per Mic" setting: With each additional audio signal, the volume level of the floor channel is reduced by the adjusted value. ̈ Try out the different settings by activating the maximum number of open channels (see page 73). The floor channel should be heard at the desired volume level without any distortion or feedback. ̈ First start with low values. "Linear Division" setting: The volume level of the floor channel is automatically reduced depending on the number of conference units with speaking privileges (see the following table). Conference units with speaking privileges 1 2 3 4 5 6 7 8 9 10 Reduction of the volume level of the floor channel in dB 0 -6 -9 -12 -14 -16 -17 -18 -19 -20 Activating/deactivating the filtering of the IN audio input from the OUT audio output The "XLR Mix Minus" function filters the audio signals of the IN audio input from the audio signals of the OUT audio output. This prevents that external conference participants, which are for example connected via a video- or teleconference, hear delayed or double audio signals. A connected video- or teleconferencing system must also support this function. ̈ Tick/untick the "XLR Mix Minus" check box. The audio signals of the IN audio input are filtered so that no double audio singals can be heard (check box is ticked) or the audio signals are not filtered (check box is unticked). Deactivates the conference units' built-in loudspeakers for contributions coming from the conference units' microphones The "Mic Loudspeaker Mute" function allows you to deactivate the conference units' built-in loudspeakers and headphones sockets for contributions coming from the conference units' microphones. Contributions are only output via the OUT output socket. * conference units and IN audio input ADN Digital Conference System | 131