Two problems encountered with the app, TTS Util

[rajibando]

Thank you for the wonderful app, 'TTS Util'.

As soon as the screensaver is active, the app stops reading a file. I am not sure how to run the app as a Daemon. I have tried smartphone settings to allow the app to run unrestricted on battery usage as a daemon, but failed.

My steps aren't helping the app run unhindered in the background, even
when the screensaver is 'on', i.e., the screen is 'off'.

Another problem: the app doesn't continually read a text file. It is
designed to store the read text as a .wav file. I however want the app
to read continually a text file uninterrupted, without creating a .wav
file and without my touching the screen for a long time.

I have also posted my problems on the F-Droid forum, at the link:
https://forum.f-droid.org/t/a-small-tts-that-could-read-out-text-files-in-natural-language/29177/2

Any suggestion would be appreciated. Any support would be welcome.