RPG Vault is offering up the second portion of their The Elder Scrolls IV: Shivering Isles interview with Bethesda's Bruce Nesmith.
Q: How did you choose to address the audio elements including the sound effects, music and voice acting?
A: Many of the new places and objects in the game have new sound effects. We always try to provide high quality audio for our games. We are not providing and new music. We were very happy with the award winning score for Oblivion and decided to keep it.
We used the same voice actors as we did for Oblivion. We wanted to make sure that Khajiits sounded the same in both worlds. Some of the unique characters have new voices, such as Sheogorath. However, we chose not to get Hollywood voices for any of the characters in the Shivering Isles.