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OT-ContinuousAudio | Audio is converted to a sound file and sent through a websocket in a fixed time frame #52

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OT-ContinuousAudio | Audio is converted to a sound file and sent through a websocket in a fixed time frame #52

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fea9eab
incomplete algorithm using sleep and the boolean while loop for conti…
dendenso Jul 27, 2020
2d529f7
Merge branch 'master' into OT-ContinuousAudio
dendenso Aug 7, 2020
ddc36ef
removed unused int variable
dendenso Aug 8, 2020
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76 changes: 44 additions & 32 deletions lib/components/recordingSession/recorder.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,8 @@ class Recorder extends StatefulWidget {

class _RecorderState extends State<Recorder> {
bool _isRecording = false;
bool _recording = false;
Stopwatch stopwatch = new Stopwatch();
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@tonynguyen98 tonynguyen98 Aug 9, 2020

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remove the new keyword

StreamSubscription<dynamic> _recorderSubscription;
FlutterSoundRecorder recorderModule;
String _recorderTxt = '00:00:00';
Expand Down Expand Up @@ -156,7 +158,6 @@ class _RecorderState extends State<Recorder> {
await recorderModule.stopRecorder();
final DateTime exportedTime = getExportedTime();
ws.sendAudioFile(savePath, userId, topic, exportedTime);

await cancelRecorderSubscriptions();
await closeAudioSession();
} catch (err) {
Expand All @@ -172,6 +173,44 @@ class _RecorderState extends State<Recorder> {
prefs.setString('session', value);
}

Future<void> recorderPressed() async {
if (!_isRecording) {
await showDialog(
context: context,
builder: (BuildContext context) => MyTopicDialog(
onTopicChanged: (String childTopic) {
topic = childTopic;
},
),
);
setState(() {
_recording = true;
stopwatch.reset();
stopwatch.start();
});
while (_recording) {
await startRecorder();
await Future.delayed(
const Duration(seconds: 5), () async => await stopRecorder());
}
} else {
if (_isRecording) {
setState(() {
_recording = false;
stopwatch.stop();
});
stopRecorder();
}
}
}

DateTime getExportedTime() {
final DateTime now = DateTime.now();
final DateTime date = DateTime(
now.year, now.month, now.day, now.hour, now.minute, now.second);
return date;
}

@override
Widget build(BuildContext context) {
return Expanded(
Expand All @@ -180,22 +219,8 @@ class _RecorderState extends State<Recorder> {
children: <Widget>[
FloatingActionButton(
heroTag: 'recorder',
onPressed: () async {
if (!_isRecording) {
await showDialog(
context: context,
builder: (BuildContext context) => MyTopicDialog(
onTopicChanged: (String childTopic) {
topic = childTopic;
},
),
);
return startRecorder();
} else {
stopRecorder();
}
},
child: _isRecording
onPressed: () async => await recorderPressed(),
child: _recording
? Icon(Icons.stop)
: Icon(
Icons.mic,
Expand All @@ -205,15 +230,15 @@ class _RecorderState extends State<Recorder> {
),
Container(
child: AutoSizeText(
_recorderTxt,
stopwatch.elapsed.toString().substring(2, 10),
style: TextStyle(
fontSize: 22.0,
color: Colors.black,
),
),
),
Container(
child: _isRecording
child: _recording
? LinearProgressIndicator(
value: 100.0 / 160.0 * (_dbLevel ?? 1) / 100,
valueColor: AlwaysStoppedAnimation<Color>(Colors.green),
Expand All @@ -225,17 +250,4 @@ class _RecorderState extends State<Recorder> {
),
);
}

DateTime getExportedTime() {
final DateTime now = DateTime.now();
final DateTime date = DateTime(
now.year,
now.month,
now.day,
now.hour,
now.minute,
now.second
);
return date;
}
}
13 changes: 4 additions & 9 deletions lib/components/recordingSession/websocket.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -21,16 +21,11 @@ class MyWebSocket {
Future<void> sendAudioFile(
String exportedAudioData, int userID, String topic, DateTime date) async {
final List<int> audioData = await processAudioFile(exportedAudioData);
final IncomingAudioEvent incomingAudioEvent = IncomingAudioEvent(
audioData,
userID,
topic,
date.toString()
);
print(audioData.toString() + '\n'); // array of integers/bytes
final IncomingAudioEvent incomingAudioEvent =
IncomingAudioEvent(audioData, userID, topic, date.toString());
channel.sink.add(
json.encode(
incomingAudioEvent.toJson()
),
json.encode(incomingAudioEvent.toJson()),
);
}

Expand Down