Hmmm, I think I got an idea for you to fix the annoying ultra high action sound.
When you pop in your blu-ray go to the main menu, look for audio options.
After that, you might see two audio options, english "DTS HD" which gives you the ultra low voices and annoying high pitch action sounds. You don't want that.
English "Dolby surround" is what you want, the action sounds are much more balanced and sounds great. The voices are much higher too.
See if that helps. Worked like a charm for me, everything is nice and balanced.