Voice cloning models learn the timbre, pacing, accent, and emotional 'fingerprint' of a target voice. Modern systems need only 10–30 seconds of clean speech to produce a clone that can read arbitrary new text in that voice.
Used responsibly, voice cloning is a creator superpower: localize your own voice into 30+ languages, generate updates to evergreen videos without re-recording, or save your voice for accessibility. Used carelessly it's a deepfake risk — always get consent from the voice owner.