You can try something like this to make AVSpeechSynthesizer speak the text variable: let synthesizer = AVSpeechSynthesizer() let utterance = AVSpeechUtterance(string: text) utterance.voice = AVSpeechSynthesisVoice(language: "en-US") synthesizer.speak(utterance) You should probably put let synthesizer = AVSpeechSynthesizer() In the struct ContentView: View and the rest of the code in the function.