How to use voice to text offline?
You will need to connect to a WiFi network in order to be able to follow the instructions below.
The speech to text feature can be used offline if the languages used have been downloaded to the device before going offline.
To download the languages, navigate to:
Settings / General management / Language and input / On-screen keyboard / Google voice typing / Offline speech recognition
If you are not using English as the spoken language, you will need to add the desired language to the Languages list.