Prompting Whisper for Joint Speech Transcription and Diarization

Fuente: arXiv
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Autori principali: Zamyrova, Mariia, Heuvel, Henk van den
Natura: Preprint
Pubblicazione: 2026
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author Zamyrova, Mariia
Heuvel, Henk van den
author_facet Zamyrova, Mariia
Heuvel, Henk van den
contents As part of the MediSpeech project, we aim to develop a system that transcribes and diarizes Dutch conversations between doctors and patients in real-time. In this research (in-progress) we explore ways of efficiently combining Whisper with speaker diarization (SD). After trying to prompt Whisper with text that contains speaker labels, we observed that it is able to insert labels into the transcription with promising accuracy. We continued this line of research by fine-tuning Whisper with speaker-labelled prompts to generate transcriptions in a format similar to that of Serialized Output Training (SOT). Fine-tuning Whisper yielded more consistent speaker IDs across the chunks of long-form audio and improved verbatim transcription. The study uncovered new challenges as Whisper's SD performance suffers because of mistakes that get propagated through prompts and inaccurate timestamps assigned to overlapping speech.
format Preprint
id arxiv_https___arxiv_org_abs_2605_05231
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Prompting Whisper for Joint Speech Transcription and Diarization
Zamyrova, Mariia
Heuvel, Henk van den
Audio and Speech Processing
Sound
As part of the MediSpeech project, we aim to develop a system that transcribes and diarizes Dutch conversations between doctors and patients in real-time. In this research (in-progress) we explore ways of efficiently combining Whisper with speaker diarization (SD). After trying to prompt Whisper with text that contains speaker labels, we observed that it is able to insert labels into the transcription with promising accuracy. We continued this line of research by fine-tuning Whisper with speaker-labelled prompts to generate transcriptions in a format similar to that of Serialized Output Training (SOT). Fine-tuning Whisper yielded more consistent speaker IDs across the chunks of long-form audio and improved verbatim transcription. The study uncovered new challenges as Whisper's SD performance suffers because of mistakes that get propagated through prompts and inaccurate timestamps assigned to overlapping speech.
title Prompting Whisper for Joint Speech Transcription and Diarization
topic Audio and Speech Processing
Sound
url https://arxiv.org/abs/2605.05231