Fix app android app wrote in kotlin speech recognition

How the application works: The application works in the background and if you say "Jan" it's half a window pops up and you say the command for example: "what time is it" and app says current time. What you need to repair: When the application is running in the background, the beep beep every 3 - 5 sec is still beeping and I would like it to work as google now or gogole, the assistant keeps listening for speech recognition but does not keep beep the creator of the application said that it is impossible to remove the beep because it is android protection or something like that Please, delete the beep