Fact · Speech recognition
Azure's REST API for short audio returns only final results, without partial text while the speaker is still talking.
Checked against its source on October 17, 2026
In the source's own words
“The REST API for short audio returns only final results. It doesn't provide partial results.”
Speech to text REST API for short audio, Microsoft Learn (Azure AI Speech), n.d., Limitations.
Open the original- What it measures
- For live captions, use the SDK or the real-time WebSocket interface, which return intermediate results.
- What it does not show
- This is a limit of the REST API for short audio, not of the Azure service in general.