Override 3D voicechat fading

Is there ANY way to override the multiplier of the “fade over distance” effect when using 3D Voice?

PlayerCanHearPlayersVoice returning true, true.

Of course it is easy to limit the distance the player is heard. Thats not the problem. The thing i want to change is, that it fades not so fast. After 300 Units you almost hear nothing… I would like to change that. So is there any way to do this?

Thanks in advance!