How to turn off the voice prompts of incoming calls and text messages on oppoA33 mobile phone?

Find the voice assistant software on the mobile phone, mine is in the system and security folder, click Open to enter the following interface, as shown in the figure;

2. Click the menu key, that is, the leftmost key, and the settings will appear. See the voice broadcast at the top of the interface below, and click Open;

You can choose the type you need from these three, and click Close directly.