The Importance of Clean Vocals
To create a high-quality AI voice clone, you need clean, dry vocals. If your training data contains background music, drums, or heavy reverb, the AI will try to "clone" those artifacts too, resulting in a noisy and metallic-sounding voice.
Vocal isolation (also known as stem separation) is the process of using AI to strip away everything except the human voice.
Top Tools for Vocal Isolation
1. Ultimate Vocal Remover (UVR5)
UVR5 is widely considered the gold standard for free, high-quality vocal isolation. It uses various MDX-Net and Demucs models that can separate vocals from instrumentals with surgical precision.
2. Spleeter by Deezer
An open-source library that is fast and efficient. It's often integrated into various web-based tools.
3. Web-Based Services (LALAL.AI, Moises)
If you don't want to install software, these services offer excellent cloud-based separation, though they often require a subscription for high-quality exports.
How to Get the Best Results
- Source Quality: Start with a high-bitrate file (WAV or FLAC). MP3s already have compression artifacts that make isolation harder.
- De-Reverb: If the original song has heavy echo, use a "De-Reverb" model to dry the vocal.
- Manual Cleanup: After isolation, use a tool like Audacity to cut out silent parts or any instrumental bleed that remains.
Integrating with OG Voice
Once you have your isolated vocal file:
- Listen to it carefully.
- Ensure there is no "ghosting" (faint music sounds).
- Upload it to your voice profile on OG Voice.
A 5-minute isolated vocal track is usually enough to train a professional-grade model.