What is speaker diarization?
Speaker diarization answers “who spoke when”. How it works, how its accuracy is measured (DER, with a worked example), and how to label speakers by hand.
AudioMoo
Transcription glossary
Audio and transcription terms explained with examples.
What is verbatim transcription?
Verbatim transcription keeps the exact words spoken. Full verbatim vs clean verbatim vs edited, with the same passage in each, a style sheet to copy, and where each is required.
Word error rate (WER): formula, example and calculator
How word error rate is calculated, a worked example on a real machine transcript, why normalization changes the score, what WER cannot tell you, and a calculator.