Original SH3 no mods question

[PapaG39]

I have been trying to find a mod that will quiet down the background roaring noise that is suppose to simulate something to do with what a submarine sounds like to someone.
The engine noise I can handle, but that background roaring noise is to much for my ears. It really has taken the fun out of the game because as soon as I turn the engines on I just have to turn the sound off and that ruins the game play.

On this laptop I can only run the standard SH3 & Commander because of minimum specs. I only play it on the weekends & the rest of the time I use my main computer & the GWX mod which has the hearing impared mod on it that has really improved that for me. the hearing impared mod on the standard SH3 doesn't seem to take the background noise out completely.
Lilke in the command center when you make a change & the guy turns to the wall & speaks...I get no sound at all froml him...just a loud roar of noise..

I thought that someone along the way would have modded that noise lower to some extent...