Speaker Diarization: Best Practices for Accurate Labels in Transcripts

Before You Hit Record

• One mic per person whenever possible; avoid crosstalk on a single channel.
• Treat the room to reduce reverb that confuses models.
• Clap sync at the start to align channels later.

During Transcription

1. Prefer engines with native diarization support.
2. Set an expected speaker count when known.
3. Enable overlap handling for panels and debates.

Cleanup in TranscriptCleaner

Use consistent labels (e.g., Speaker 1, Host, Guest) and protect names with a custom glossary. Combine Remove filler words and Fix casing to make each speaker distinct and skimmable.