You may be able to update your Android device's TTS languages with this TTS update from Google. It has Polish language, then set your device default to Polish.
o use Google Text-to-speech on your Android device, go to Settings > Language & Input > Text-to-speech output. Select Google Text-to-speech Engine as your preferred engine. Note, on many Android devices, Google Text-to-Speech is already turned on, but you can update to the latest version
https://play.google.com/store/apps/details?id=com.google.android.tts .
Will it work? You will need to try and test and let us know.