To have the music volume automatically reduced when someone speaks via the communication system, adjust “Audio Ducking” in the audio settings.
When set to “high”, the music volume is significantly reduced when someone speaks. This allows you to have conversations more easily without having to adjust the music volume manually. As soon as everyone has finished speaking, the system returns the music volume to its original level.
With a low “Audio Ducking” setting, the music volume is scarcely reduced at all when someone speaks.
Find out more about the available audio settings here.