In this ultimate guide, Aitrepreneur demonstrates how to create high-quality text-to-speech (TTS) AI voices locally on your computer for free, eliminating the need for expensive services like ELEVENLABS. The tutorial covers various methods, from quick 10-second voice cloning to advanced techniques involving fine-tuning models and using RVC (Retrieval-based Voice Conversion). The video begins with installation instructions for the necessary software, including one-click installers for Patreon supporters and manual installation steps for others. The first method involves simple voice cloning using the XTTS web UI, which allows users to generate TTS from a short audio clip. The second method, called the medium TTS method, involves fine-tuning the XTTS model with a two-minute audio clip to create more accurate and personalized voices. The ultimate TTS method combines XTTS-generated audio with RVC to achieve the highest quality voice replication. The video also introduces the XTTS RVC UI, which automates the process of generating and converting TTS audio. Aitrepreneur provides detailed instructions and tips for each method, ensuring that viewers can achieve the best results for their specific needs. The video concludes with a reminder to check out the provided resources and support the channel on Patreon for additional benefits.