Measure, Don't Estimate: Labeling Speakers Without a Gated Model

Short summary

A practical approach to speaker diarization that uses fundamental frequency (pitch) measurement via librosa instead of requiring gated models like pyannote. Segments are clustered into two groups by median pitch threshold, labeling lower-pitch as one speaker and higher-pitch as the other. The audiotrace library ships this as a zero-setup default with optional pyannote opt-in for higher accuracy.

• •Pitch-based diarization uses librosa pyin to measure fundamental frequency per segment
• •Median pitch threshold splits two-party calls into speakers without tokens or model downloads
• •audiotrace library offers zero-setup default with optional pyannote upgrade for best quality

Generated with AI, which can make mistakes.