Louder note calling and quieter environment control below 50% audio

Can there be a patch to further reduce sound effects of the engine and environment below 50% so that I can hear the notes better? as a driver and codriver of actual rally, I need to be able to hear the notes and additionall the voices need more bass to them. Way too trebly and nasal. The previous game, dirt rally 2.0 had a really good voice in English that I could hear really well. The two English voices on this are too thin and are just not clear enough, so I need to be able to max those volumes out and reduce the car and environment noise further. By by no means am I hard of hearing, I actually can't process that much sound coming in at once. With a real Stilo helmet the rest of the world doesn't exist, except for the voice calling notes.