flutter google_speach response stream not working - flutter

Question

final serviceAccount = ServiceAccount.fromString(r'''{
Json private keys
}''');
final speechToText = SpeechToText.viaServiceAccount(serviceAccount);
final config = RecognitionConfig(
encoding: AudioEncoding.LINEAR16,
model: RecognitionModel.basic,
enableAutomaticPunctuation: true,
sampleRateHertz: 16000,
languageCode: 'en-US');
final streamingConfig =
StreamingRecognitionConfig(config: config, interimResults: true);
Stream<List<int>> stream =
(await MicStream.microphone(sampleRate: 16000)) as Stream<List<int>>;
final responseStream =
speechToText.streamingRecognize(streamingConfig, stream);
if (_isListining) {
setState(() {
_isListining = false;
});
} else {
setState(() {
_isListining = true;
print('hello');
try {
responseStream.listen((data) {
print(data.results.length);
setState(() {
_sendController.text = data.results
.map((e) => e.alternatives.first.transcript)
.join('/n');
});
print(content);
}, onDone: () {
setState(() {
setState(() {
_isListining = false;
});
});
}, onError: (e) {
print('errorr : ' + e);
setState(() {
_isListining = false;
});
});
print('streaming');
} catch (e) {
print('not streaming');
print(e);
}
});
}
linke to packages used
https://pub.dev/packages/google_speech
https://pub.dev/packages/mic_stream
so the problem is that microphone streaming is working fine but responseStream from google apis not printing or doing anything
after reading the docs
found this
https://cloud.google.com/speech-to-text/docs/troubleshooting#returns_an_empty_response
and i dont know if it is the problem or not