League of Legends Audio Files Location?

I've been having fun making music with FL studio and I would like to make a League of Legends themed song. Is there anywhere I can find the entirety of all League audio files? I found one webpage with the Champion audio but they are saved in .ogg format. I'm looking for everything from the start of the match team spawning sounds to Jinx's missiles to the noises the neutral camps make and I would like high quality original audio rather than just record it myself (and end up having to clean up the sound and background noise myself).