This is just plain weird
I know when using TC you loose sound above 4x but when you go back to normal time the sounds should be back.
I use TC regularly up to 1024x (never higher) when in transit to my patrol grids or going back to base without any problems what so ever...
Sometimes when in 1024x TC the game hiccups and I know a vessel has been generated (I know its a cheat but ey!) I hit Backspace (wait 10 sec so the game can catch up), go to normal time, go to hydrophone station and start a manual sweep. At that time the vessel is still out of AI listening range but not mine (mostly around 12Nm).
As long as the vessel is 'powered' and in motion even at 2Knts I can hear it, the only time I can't hear anything is when the ship is dead in the water but then there's the little green light... and I'm still able to find my target.
And no I don't have any fixes running for it, only use:
- TMO 2.5
- OTC
- OTC aspect ratio
- IJN Rad_Fix for TMO2_Betaupdate
- TMO Smoke Mod
- ISE 2.0
- ISE New clouds+Waves
- ISE Realistic Colors
- TDW DC_Water_Disturbance v2
EDIT: welcome to SUBSIMS