Speaker Diarization Metrics: DER, JER, Purity & Boundary Error with Python
DER alone won't tell you why your diarization fails. Learn DER, JER, Purity, Coverage, and Boundary Error — with formulas and working Python code using pyannote.
Best Speaker Diarization Models 2026: NeMo SortFormer vs Pyannote
We benchmarked NeMo (SortFormer, MSDD), Pyannote, and VibeVoice on real-world audio with 6–14 speakers. See DER scores, latency, and which model wins.