Set how much the overall game audio should be reduced when someone speaks to you through Voice Chat. A value of 0 means that the game audio will not be lowered when someone speaks through Voice Chat. A value of 100 means the game will be silent when someone speaks through Voice Chat.
- Open the Settings Menu from the main menu.
- Select the Audio tab.
- Find the Voice Chat Ducking option.
- Change it to your preferred setting.