this is an audio replacer mod that replaces most of league's UI sounds (shop, level up, cooldowns, pings etc) with ones from dota 2 where possible with some liberties taken (league has 12 or so different ping sounds compared to dota's 4, for example - so some have been left as their standard league ones so it's not the same few sounds across all of them)
you should consider this mod a work in progress as there's still a few sounds i'd like to replace (towers, last hitting etc) when i end up getting around to it but as it's mostly functional and i've played for most of last season with them enabled i thought they were fit enough for public use :)
