D1335603_T770_880_990_MXP_User_Manual
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4.5.4 Stereo Settings
Stereo Input Mode (stereo audio)
If Stereo Input Mode is off, Audio out 2 will be a mix of audio input 3, microphones and the far end
(the received far end signal is either mono, or stereo that is summed left+right into mono in near
end codec). If Stereo Input Mode is on, Audio out 2 will be a mix of the microphones and the far
end.
Stereo Speakers
To be able to get stereo sound, the required stereo speakers has to be connected to a Digital
NAM and stereo speakers has to be enabled in the main audio menu (Stereo Speakers = On).
Stereo sound will be present if you either receive stereo sound from far end or you have
connected a stereo sound source to the audio 3 and 4 input pair and enabled stereo I/O mode.