There are many tweaks to the sounds, some not too noticeable at first, and some obvious. 

I’ve changed the sonar sounds significantly in this version with the main aim of allowing the player to audibly hear the differences between active platform types. Ships and subs have the two lower frequency pings (and you can also tell these apart easily). The active torpedos sound not much different, just a bit quieter and slightly higher in pitch. 

Previously all of the sonar pings operated at the same frequency, and in fact, as it turns out, they were all crafted from the same original sample ping. Being the same frequency made differentiating between surface pings, dipping sonar and sonobuoy pings, and active torpedo pings very confusing, They all sounded somewhat the same, just the torpedos had a shorter ping decay. 

Now you can tell what type of platform is pinging you. I also cleaned up the pings themselves, in order to remove two click flaws with all of them (that is how I know that all came from the same file). They are also less piercing now during heavy pinging. It’s going to sound a bit strange at first, but you will quickly work out what sound goes with which platform. 

Weapons sounds have been adjusted, dive audio added to 688, Akula and SSN-21, plus the new US and Russian hit and sinking sounds, and a similar sound for the FFG7. Also, our hostess is three times louder than before. 

(now, just need to find a way to get rid of the clicks caused by conversion from .wav to .agg)