[Theory] Tahm Kench Murmured... (Backwards Speech)

http://ddragon.leagueoflegends.com/cdn/img/champion/splash/TahmKench_0.jpg

Now you may recall my thread on the backwards messages hidden within Aatrox sound effects. It took people nearly 2 years to find it. http://boards.na.leagueoflegends.com/en/c/story-art/YY90NzzU-aatrox-whispered-one-day-within-us-theory

This of course plays off the idea that metal records had hidden "satanic" messages in them and is an Easter Egg from the Riot sound Engineers

Now....Tahm Kench is the first explicitly identified demon. He also calls Aatrox (who looks like a bit like classical demon) "Brother" in some of his lines, and lists him as a friend on his page. http://gameinfo.na.leagueoflegends.com/en/game-info/champions/tahmkench/

Now, Tahm Kench has....some weird sounds in his abilities. What if...there were more hidden speech? Maybe backwards as before, and/or warped by running water or being under water? https://www.youtube.com/watch?v=q9294sImy-c https://www.youtube.com/watch?v=PKdcNfYQIlM

#So it begins.

https://soundcloud.com/sorrowdusk/sets/tahm-kench-secrets

The above is what little I was able to do in Audacity, having never used it before. I tried reversing the audio of the above video first.

Then I SLOWED it down (as speeding it up didnt seem to help). I suspect changing the pitch, or base/treble might help but I'm not sure what to do.

It DOES sound like speech during his abilities but....I can't quite make it out. It's very creepy.

#EDIT: it sounds kinda like damned souls eternally drowning forever, maybe begging, garbled by water and high pitched metallic sounds.

Although...that last bit is probably just Katarina's daggers.

Is there a way to extract JUST sound effects from the game? I'm particularly interested in the channel of his ultimate, his shield, and sound effects while a target is swallowed whole.