Flutter text to speech (flutter_tts) does not work - flutter

Question

I am trying to build this simple text to speech feature using flutter_tts package but it doesn't speak no matter what I tried (official example, tutorials, etc.)
I checked my Audio Output, it's set correctly. I have other MP3 sounds, they play just fine.
I tried ^3.5.0 and ^3.5.3 versions, neither worked.
Here is my code:
class ColorsScreen extends StatefulWidget {
const ColorsScreen({super.key, required this.title});
final String title;
#override
State<ColorsScreen> createState() => _ColorsScreenState();
}
class _ColorsScreenState extends State<ColorsScreen> {
late FlutterTts flutterTts;
bool isPlaying = false;
String _currentColor = "black";
String get currentColorName =>_currentColor;
#override
void initState() {
super.initState();
initTts();
flutterTts.setStartHandler(() {
setState(() {
isPlaying = true;
});
});
flutterTts.setCompletionHandler(() {
setState(() {
isPlaying = false;
});
});
}
initTts() async {
flutterTts = FlutterTts();
}
Future _readColorName() async {
await flutterTts.setVolume(1);
await flutterTts.setSpeechRate(1);
await flutterTts.setPitch(1);
var result = await flutterTts.speak(currentColorName);
if (result == 1) {
setState(() {
isPlaying = true;
});
}
}
#override
void dispose() {
super.dispose();
flutterTts.stop();
}
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: TopBar(widget.title),
body: IconButton(
padding: const EdgeInsets.all(0),
icon: const Icon(
Icons.play_circle_fill_rounded,
color: Colors.red,
size: 50,
semanticLabel: 'Play color name',
),
onPressed: _readColorName,
),
);
}
}

Answer 1

Try in different real android devices such as: Android 11 or Android 12

Answer 2

I had recently upgraded my simulator to iOS 16.0 and now realizing that's the problem. Switched to a iOS 15.5 simulator and it worked fine. When on iOS 16.0, XCode console was showing this error: "unable to list voice folder" Leaving it here in case someone else faces a similar problem. I will continue building in iOS 15.5 version for now and keep checking if the libraries get any updates.