How well are acoustics modeled in the game?

[i_b_spectre]

I've read discussions on topics such as the game's handling of the thermal layer (modeled globally), but I was curious as to the fidelity of other acoustic properties, particularly those of the prosecutors. Namely, if an ASW vessel passes over you and you are positioned in his baffles, are you adequately shielded from detection in his blind spot? Also, I've read that, in the aftermath of depth charge explosions, it's several minutes before the noise level returns to anything usable for listening/detecting your sub. Does this also seem to be modeled? If so, when there are multiple prosecutors overhead, it would seem the one listening (while the other is attacking) wouldn't have much luck in detecting you. My gut feeling on these questions is yes, but I'm sure there are a lot more knowledgeable and experienced kaleuns than I'll ever hope to be. Opinions welcome.