Allow us to mute champion's VO

Hello all. I like the VO of the game in general. However - whenever I face yasuo I am forced to turn the sound of the game off. Hearing Hasaki 500 000 time in a game is annoying AF. However I like to listen to the majority of the champions I play and I would like to keep listening to them. A button "mute the champions VO" would be quite nice, because it will allow me to keep listening to the cool champion quotes, while not listening to the annoying ones.

And one more thing I do not understand. Why, for the love of god, among all the nice Yasuo lines the other people (non-yasuo players in the game) have to listen to his over-high-pitched squeals?