Hey there! First off I want to welcome you to the community! We are happy to have you here! I can certainly understand your concerns with the text to speech, try these steps to turn it off.
From a Home screen, navigate: Apps icon, Settings then tap "Language & input" or "Language & keyboard" From the On-screen keyboard, tap Google Keyboard/Gboard. Tap Preferences. Tap the Voice input key switch to turn on or off.
