Scratcy sounds with effects--can't get rid of it?

I’ve looked for this question in the forums and haven’t found it, apologies if I just missed it.
I have installed Gsnap and KeroVee with Audacity and have used it to autotune a voice recording–just talking, no singing/music. The idea is to sound slightly like Fi, a character from the Legend of Zelda: Skyward Sword–I’m working on an Abridged for it. While the auto-tune has been successful, it added a very hoarse/deep scratchy sound along with my voice–it isn’t a seperate sound.
I was wondering if there is a way to get rid of it, either through reapplying the effects (Though that didn’t work when I tried it) or adding another fix effect to it?
I have Audacity 2.0.5 installed on my Windows (7, I think) laptop, and I installed through the .exe. I know next to nothing about this type of software beyond the basics, but if any more info is needed I will give it to the best of my ability, but I was wondering if there is another effect that can get rid of the sound.
Any help would be appreciated!
Thank you!

Any pitch shifting effect, like autotune, will also shift any noise in your original recording.
That shifted noise could be the hoarse sound you are describing.
Solution: clean the sound with noise-reduction before applying pitch-shifting.

Another free-plugin which includes pitch-shifting effects is DtBlkFx

Yeah, I’ve used Noise Removal on all the audio files before I tried to add the autotune effect.
Thank you! I will try it out and see how it works as soon as I get the chance!