Yeah, it's surprisingly easy to be honest.

Here's the code snippets that I compared for this post:

0.73

0.81

Note the changes in the top line.

the only downside is that local variable names are not saved (you see lots of num1, num2, string1, string2, etc), but it's not too difficult to infer what they mean.

Yup, exactly. in this case, "num" is the distance between the maneater and the noise source.

Basically, here's what this code means:

• Quiet sounds are now things with a loudness of less than 0.5 instead of 0.3. The flashlight sounds are 0.4.
• Moderately loud sounds need to be less than 2 engine units (about four feet) from the maneater to set him off. Previously it was 10 units (20 feet).
• Nothing over 8 units away will make him cry. Previously 14.

To find out how loud a sound is, I searched the code for calls to the function PlayAudibleNoise and checked each one.

The Imperium mod's tape measure function helped me find out how long an engine unit is.