"Tavros is just too sensitive to be a decent troll, to the point where he even tries to help Jade. He sucks at trolling and usually ends up getting trolled himself, which he talks about (at some point). On the surface, he seems innocently ignorant of his own shortcomings as a troll, or mockery from others - Karkat says he's unable to truly hate anyone, even the thorn in his paw, Vriska. However, he copes with the negativity he faces from the other trolls by personifying his self-esteem, which he has named Rufio. Using a technique suggested by Kanaya, Tavros imagines that he talks to his self-esteem in the form of Rufio, and is careful not to let anything hurt Rufio's feelings. His misguided affair with self-esteem continues as he becomes Jade's fairy god troll, now assuming that a high self-esteem means not having to apologize for anything, even if he is at fault for it."

(Taken from the Homestuck Wiki)

I'm looking for a quiet, high-pitched to medium voice. He should sound a bit overconfident despite him being quiet.