Voice Recognition Test Lab
An independent test page. It does not modify or connect to the live calculator.
1. Device & browser check
- Browser recognition
- Checking…
- On-device API
- Checking…
- App display mode
- Checking…
- Internet connection
- Checking…
- Microphone permission
- Not checked
- Browser / device
- —
The browser may not reveal the exact speech-processing provider. We will verify online and offline behaviour through controlled tests.
2. English speech recognition
Speak naturally in English. Try: “67 multiplied by 56” or “450 plus 250”. This page only displays recognised words; it does not calculate anything.
3. On-device / offline capability
This checks whether the browser exposes the newer on-device speech API and whether an English language pack is available. It does not silently switch the standard test into offline mode.
If the browser does not support the on-device API, this section will report that clearly. Do not interpret a cached PWA page as proof of offline speech recognition.
4. Test notes
- First test in Chrome with internet connected.
- Then install this separate test PWA and repeat the same phrase.
- Finally, turn on Airplane mode and test only if on-device recognition is reported as available and its English pack is installed.
- Record the exact result and any error shown.
This is a diagnostic test page, not the calculator voice feature. It does not save recordings or send transcripts to our own server.