You know, I've listened to my fair share of AI-narrated audiobooks, and while they've come a long way, there's still something... off. The biggest issue is emotional depth. A human narrator can subtly shift tone to convey sarcasm, sorrow, or joy—like when I listened to 'The Book Thief' narrated by Allan Corduner, and his voice cracked just right during the heartbreaking scenes. AI voices? They hit the notes but miss the music.
Another thing is consistency with character voices. In fantasy sagas like 'The Stormlight Archive,' where each character has distinct speech patterns, AI often struggles to maintain uniqueness across hundreds of pages. I once heard an AI flip between two accents for the same character mid-chapter—it was like a badly dubbed movie! Plus, pacing can feel robotic. Human narrators know when to linger on a poignant line or speed up during action, but AI tends to plod along like it's reading a grocery list.