voice-likeness-eval

Measure how much a cloned voice sounds like the real character, and whether a change really helped. Covers speaker-embedding similarity (ECAPA) against the centroid of held-out real clips, word error rate with Whisper, comparing per line with paired t-tests, how many runs it takes to beat sampling noise, checking a take-picker with an independent speaker model, and simulating picking strategies on many scored takes. Use when comparing voice engines or settings (Fish Audio Drama 3 vs S2 Pro vs ElevenLabs, sampling, reference clips, best-of-N, fine-tuning), or before telling anyone that one voice setup is better than another.