Why Kitten TTS for Audiobooks?
- Natural pacing: Speed=0.9 for comfortable listening
- Consistent voice: Same narrator across hundreds of pages
- Zero fatigue: AI never gets tired, voice stays consistent
- Cost-effective: Free vs $200-400 per finished hour for human narrators
Chapter-by-Chapter Script
from kittentts import KittenTTS
import os
model = KittenTTS("KittenML/kitten-tts-mini-0.8")
# Organize chapters as text files
chapters_dir = "book_chapters"
os.makedirs("audiobook_output", exist_ok=True)
for i in range(1, 21): # 20 chapters
chapter_file = os.path.join(chapters_dir, "chapter_%d.txt" % i)
if os.path.exists(chapter_file):
with open(chapter_file, "r") as f:
text = f.read()
output = "audiobook_output/chapter_%d.wav" % i
model.generate_to_file(text, output, voice="Bella", speed=0.9)
print("Narrated chapter %d" % i)
print("Audiobook complete!")
Best Narration Voices
| Book Genre | Voice | Speed |
| Fiction / Novels | Bella | 0.9 (natural storytelling) |
| Non-Fiction / Business | Bruno | 0.95 (clear, authoritative) |
| Self-Help / Personal Growth | Jasper | 0.95 (warm, relatable) |
| Children Books | Rosie / Kiki | 0.85 (slower, animated) |