Fact · Dictation on Windows
Microsoft's UWP speech guide says predefined dictation and web-search grammars are online, not on the device.
Checked against its source on October 16, 2026
In the source's own words
“they are online (not on the device), performance might not be as fast as with a custom grammar installed on the device”
Speech recognition - UWP applications, Microsoft Learn, n.d., Section on predefined grammars.
Open the original- What it measures
- The guide contrasts predefined grammars with custom grammars that are installed on the device.
- What it does not show
- Predefined grammars are limited to about 10 seconds of speech input. An app that must work offline should use a custom grammar.