Audio Control allows you to real-time control over the audio while calling.
The Volume slider bar allows you to control the volume while you talk.
Click 
to turn all the audio
volume down; and
click 
to turn the audio volume up.
The Mixer controls the audio level between music/sound effect and microphone.
Click 
to increase the music/sound effect
and decrease the microphone volume.
Click 
to decrease the music/sound effect
and increase the microphone volume.
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