In order to use the application, you need to install it first. You can do that by going to the Google Play store and searching for the application. Once you have installed it, you can start using it. You only need to do is to open the application and start talking. The speech to text app will convert your speech into a text. There are different options that you can use to enable the voice recognition. 

Once you have finished speaking, the app will change your spoken language to the Bangla language. You can copy the text and use it anywhere.