Official documentation
Detect different speakers in an audio recording (Cloud Speech-to-Text)
Google Cloud, 2026
Read the originalRead on October 17, 2026
- What it is
- Google Cloud's documentation for speaker diarization in its Speech-to-Text API. It explains what the feature labels, how to enable it, and that language support varies.
- How much weight it carries
- Official vendor documentation, which describes the service's behavior as Google documents it. It does not give accuracy figures for diarization, and the feature list changes as the API is updated.
Facts taken from this source
- Google Cloud Speech-to-Text's speaker diarization detects when speakers change and labels each voice with a number, and it tags each word with the speaker number.
“detects when speakers change and labels by number the individual voices detected in the audio” (Speaker diarization section)
- Google's documentation says speaker diarization is not available for every language, and tells you to check its language support page.
“Review the language support page to see if this feature is available for your language.” (Speaker diarization section)
Pages that rest on this source
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- Speaker diarizationGlossary
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