[feature req] Change pitch when changing playback speed

[s-liwka]

[CrateDepth]

I just noticed that the word "Optionally" was removed from the title of this opened issue. I hope that is optional because the requirement I have of this app is hear slowed down speech at original pitch.

When I am trying to learn a second language and the second language is spoken very quickly, slowing it down to 0.25x its original speed is truly useful. However, changing its pitch would DEFINITELY make this a hindrance.