Why does Sheev wheeze so much when he talks?

https://youtu.be/qvWv3uosN9E?t=1m13s

He sounds like he's suffering from COPD.

And why does he talk like that? Is it too hard to speak in a normal tone?

Because he had Lightning hurled at his face, I guess.

Ian's talked about this. He's summoning Sidious deep within him.

Originally posted by DarthAnt66
He's summoning Sidious deep within him.