Audio playback form mic to speaker works on flutter web but keeps crashing when I test in on android device #3
Description
Describe the bug
A clear and concise description of what the bug is.
To Reproduce
Steps to reproduce the behavior:So I am trying to record audio from mic and play it back on the speaker in real time using the tAudio library for recording from mic and using tAudio library for audio playback. Now everything works perfectly on flutter web but when I try running and testing it on my android device, it records for only about a second or less and the app closes abruptly. below is my full code:
/*
* Copyright 2018, 2019, 2020, 2021 Dooboolab.
*
* This file is part of Flutter-Sound.
*
* Flutter-Sound is free software: you can redistribute it and/or modify
* it under the terms of the Mozilla Public License version 2 (MPL2.0),
* as published by the Mozilla organization.
*
* Flutter-Sound is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* MPL General Public License for more details.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/.
*/
import 'dart:async';
import 'package:flutter/foundation.dart' show kIsWeb, Uint8List;
import 'package:flutter/material.dart';
import 'package:taudio/taudio.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:audio_session/audio_session.dart';
/*
This is a very simple example for Flutter Sound beginners,
hat shows how to record, and then playback a file.
This example is really basic.
*/
void main() {
runApp(const MaterialApp(
home: PlayFromMic(),
));
}
typedef _Fn = void Function();
const theSource = AudioSource.microphone;
// Example app.
class PlayFromMic extends StatefulWidget {
const PlayFromMic({super.key});
@override
State<PlayFromMic> createState() => _PlayFromMic();
}
class _PlayFromMic extends State<PlayFromMic> {
/// Our player
final FlutterSoundPlayer _mPlayer = FlutterSoundPlayer();
/// Our recorder
final FlutterSoundRecorder _mRecorder = FlutterSoundRecorder();
var recordingDataControllerUint8 = StreamController<Uint8List>();
Future<void> init() async {
final session = await AudioSession.instance;
await session.configure(AudioSessionConfiguration(
avAudioSessionCategory: AVAudioSessionCategory.playAndRecord,
avAudioSessionCategoryOptions:
AVAudioSessionCategoryOptions.allowBluetooth |
AVAudioSessionCategoryOptions.defaultToSpeaker,
avAudioSessionMode: AVAudioSessionMode.spokenAudio,
avAudioSessionRouteSharingPolicy:
AVAudioSessionRouteSharingPolicy.defaultPolicy,
avAudioSessionSetActiveOptions: AVAudioSessionSetActiveOptions.none,
androidAudioAttributes: const AndroidAudioAttributes(
contentType: AndroidAudioContentType.speech,
flags: AndroidAudioFlags.none,
usage: AndroidAudioUsage.voiceCommunication,
),
androidAudioFocusGainType: AndroidAudioFocusGainType.gain,
androidWillPauseWhenDucked: true,
));
_mPlayer.openPlayer().then((value) {
setState(() {
_mPlayerIsInited = true;
});
});
openTheRecorder().then((value) {
setState(() {
_mRecorderIsInited = true;
});
});
}
@override
void initState() {
super.initState();
init();
}
@override
void dispose() {
_mPlayer.closePlayer();
_mRecorder.closeRecorder();
super.dispose();
}
// ------------------------------ This is the recorder stuff -----------------------------
static const Codec _codec = Codec.pcm16;
static const int _sampleRate = 48000;
bool _mRecorderIsInited = false;
double _dbLevel = 0.0;
StreamSubscription? _recorderSubscription;
bool bNoiseSuppression = false;
bool bEchoCancellation = false;
/// Request permission to record something and open the recorder
Future<void> openTheRecorder() async {
if (!kIsWeb) {
var status = await Permission.microphone.request();
if (status != PermissionStatus.granted) {
throw RecordingPermissionException('Microphone permission not granted');
}
}
await _mRecorder.openRecorder();
/*_recorderSubscription = */ _mRecorder.onProgress!.listen((e) {
// pos = e.duration.inMilliseconds; // We do not need this information in this example.
setState(() {
_dbLevel = e.decibels as double;
});
});
await _mRecorder.setSubscriptionDuration(
const Duration(milliseconds: 100)); // DO NOT FORGET THIS CALL !!!
_mRecorderIsInited = true;
}
/// Begin to record.
/// This is our main function.
/// We ask Flutter Sound to record to a File.
void record() async {
try {
assert(_mPlayerIsInited && _mRecorder.isStopped && _mPlayer.isStopped);
await _mPlayer.startPlayerFromStream(
codec: _codec,
sampleRate: _sampleRate,
interleaved: true,
bufferSize: 1024,
numChannels: 2,
);
await _mRecorder.startRecorder(
codec: _codec,
audioSource: theSource,
//toStreamFloat32: _mPlayer.float32Sink,
toStream: recordingDataControllerUint8,
sampleRate: _sampleRate,
numChannels: 2,
enableNoiseSuppression: bNoiseSuppression,
enableEchoCancellation: bEchoCancellation,
);
recordingDataControllerUint8.stream.listen((Uint8List buf) {
//In actual production usage, Uint8List buf will be provided by websocket for _player.feedUint8FromStream(buf); on receiver end
_mPlayer.feedUint8FromStream(buf);
//print("===========$buf");
},
onError: (error) {
print('Recorder error: $error');
},
onDone: () {
print('Recorder stopped');
},);
setState(() {});
} catch (e) {
print('AAAAAAAAAAAAAAAAAAA----------Error starting recorder: $e -----------------BBBBBBBBBBBBBBBBBB------');
}
}
/// Stop the recorder
void stopRecorder() async {
await _mPlayer.stopPlayer();
await _mRecorder.stopRecorder().then((value) {
setState(() {
//var url = value;
});
});
}
// ----------------------------- This is the player stuff ---------------------------------
bool _mPlayerIsInited = false;
/// Begin to play the recorded sound
void play() {}
/// Stop the player
void stopPlayer() {
_mPlayer.stopPlayer().then((value) {
setState(() {});
});
}
// ----------------------------- UI --------------------------------------------
// The user changed its selection. Reset the 3 buffers
Future<void> reinit() async {
await _mPlayer.stopPlayer();
await _mRecorder.stopRecorder();
setState(() {});
}
_Fn? getRecorderFn() {
if (!_mRecorderIsInited || !_mPlayerIsInited) {
return null;
}
return _mRecorder.isStopped ? record : stopRecorder;
}
@override
Widget build(BuildContext context) {
Widget makeBody() {
return Column(
children: [
Container(
margin: const EdgeInsets.all(3),
padding: const EdgeInsets.all(3),
height: 200,
width: double.infinity,
alignment: Alignment.center,
decoration: BoxDecoration(
color: const Color(0xFFFAF0E6),
border: Border.all(
color: Colors.indigo,
width: 3,
),
),
child: Column(children: [
Row(children: [
ElevatedButton(
onPressed: getRecorderFn(),
//color: Colors.white,
//disabledColor: Colors.grey,
child: Text(_mRecorder.isRecording ? 'Stop' : 'Record'),
),
const SizedBox(
width: 20,
),
Text(_mRecorder.isRecording
? 'Recording in progress'
: 'Recorder is stopped'),
]),
const SizedBox(
height: 20,
),
_mRecorder.isRecording
? LinearProgressIndicator(
value: _dbLevel / 100,
valueColor:
const AlwaysStoppedAnimation<Color>(Colors.indigo),
backgroundColor: Colors.limeAccent)
: Container(),
CheckboxListTile(
tileColor: const Color(0xFFFAF0E6),
title: const Text("Noise Suppression"),
value: bNoiseSuppression,
onChanged: (newValue) {
reinit();
setState(() {
bNoiseSuppression = newValue!;
});
},
),
CheckboxListTile(
tileColor: const Color(0xFFFAF0E6),
title: const Text("Echo Cancellation"),
value: bEchoCancellation,
onChanged: (newValue) {
reinit();
setState(() {
bEchoCancellation = newValue!;
});
},
),
]),
),
],
);
}
return Scaffold(
backgroundColor: Colors.blue,
appBar: AppBar(
title: const Text('Play from Mic'),
),
body: makeBody(),
);
}
}
Here is what I know about the problem so far when I try to debug:
- When I reduce the buffer size from 1024 to something lesser like 200 or 500, it still crashes.
- When I change the channelNumber from 2 to 1 on the recorder and player, it still crashes.
Note, my action in 1 and 2 was done to reduce memory footprint since I suspected that it was crashing owing to limited capacity of my mobile device(128GB/4GB).
- When I only record using tAudio and disable play back by commenting out
_mPlayer.feedUint8FromStream(buf);, the app does not crash, and I can observe the audio recorded in uint8list when I log it usingprint("===========$buf");. I concluded at this point that flutter tAudio library is doing just fine and the app was rather crashing because of the way I was implementing live audio playback using Just_audio library
any push in the right direction would help. Much thanks in advance.
Here is the log after record button is being pressed for the app to record and do a playback of the audio:
I/flutter ( 9045): ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): │ #0 FlutterSoundPlayer._startPlayerFromStream (package:taudio/public/fs/flutter_sound_player.dart:1320:13)
I/flutter ( 9045): │ #1 FlutterSoundPlayer.startPlayerFromStream.<anonymous closure> (package:taudio/public/fs/flutter_sound_player.dart:1301:13)
I/flutter ( 9045): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter ( 9045): │ 🐛 FS:---> startPlayerFromStream
I/flutter ( 9045): └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): │ #0 FlutterSoundPlayer._stop (package:taudio/public/fs/flutter_sound_player.dart:1826:13)
I/flutter ( 9045): │ #1 FlutterSoundPlayer._startPlayerFromStream (package:taudio/public/fs/flutter_sound_player.dart:1331:11)
I/flutter ( 9045): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter ( 9045): │ 🐛 FS:---> _stop
I/flutter ( 9045): └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): │ #0 FlutterSoundPlayer.stopPlayerCompleted (package:taudio/public/fs/flutter_sound_player.dart:360:13)
I/flutter ( 9045): │ #1 MethodChannelFlutterSoundPlayer.channelMethodCallHandler.<anonymous closure> (package:flutter_sound_platform_interface/method_channel_flutter_sound_player.dart:98:21)
I/flutter ( 9045): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter ( 9045): │ 🐛 ---> stopPlayerCompleted: true
I/flutter ( 9045): └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): │ #0 FlutterSoundPlayer.stopPlayerCompleted (package:taudio/public/fs/flutter_sound_player.dart:375:13)
I/flutter ( 9045): │ #1 MethodChannelFlutterSoundPlayer.channelMethodCallHandler.<anonymous closure> (package:flutter_sound_platform_interface/method_channel_flutter_sound_player.dart:98:21)
I/flutter ( 9045): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter ( 9045): │ 🐛 <--- stopPlayerCompleted: true
I/flutter ( 9045): └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): │ #0 FlutterSoundPlayer._stop (package:taudio/public/fs/flutter_sound_player.dart:1885:13)
I/flutter ( 9045): │ #1 <asynchronous suspension>
I/flutter ( 9045): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter ( 9045): │ 🐛 FS:<--- _stop
I/flutter ( 9045): └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): │ #0 FlutterSoundPlayer.log (package:taudio/public/fs/flutter_sound_player.dart:418:13)
I/flutter ( 9045): │ #1 MethodChannelFlutterSoundPlayer.channelMethodCallHandler.<anonymous closure> (package:flutter_sound_platform_interface/method_channel_flutter_sound_player.dart:118:21)
I/flutter ( 9045): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter ( 9045): │ 🐛 [android]: mediaPlayer prepared and started
I/flutter ( 9045): └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): │ #0 FlutterSoundPlayer._startPlayerFromStream (package:taudio/public/fs/flutter_sound_player.dart:1398:13)
I/flutter ( 9045): │ #1 <asynchronous suspension>
I/flutter ( 9045): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter ( 9045): │ 🐛 FS:<--- startPlayerFromStream
I/flutter ( 9045): └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): │ #0 FlutterSoundPlayer.startPlayerCompleted (package:taudio/public/fs/flutter_sound_player.dart:341:13)
I/flutter ( 9045): │ #1 MethodChannelFlutterSoundPlayer.channelMethodCallHandler.<anonymous closure> (package:flutter_sound_platform_interface/method_channel_flutter_sound_player.dart:91:21)
I/flutter ( 9045): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter ( 9045): │ 🐛 ---> startPlayerCompleted: true
I/flutter ( 9045): └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): │ #0 FlutterSoundPlayer.startPlayerCompleted (package:taudio/public/fs/flutter_sound_player.dart:353:13)
I/flutter ( 9045): │ #1 MethodChannelFlutterSoundPlayer.channelMethodCallHandler.<anonymous closure> (package:flutter_sound_platform_interface/method_channel_flutter_sound_player.dart:91:21)
I/flutter ( 9045): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter ( 9045): │ 🐛 <--- startPlayerCompleted: true
I/flutter ( 9045): └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045):
I/flutter ( 9045): │ 🐛 FS:<--- _stopRecorder :
I/flutter ( 9045): └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): │ #0 FlutterSoundRecorder.stopRecorder (package:taudio/public/fs/flutter_sound_recorder.dart:962:13)
I/flutter ( 9045): │ #1 <asynchronous suspension>
I/flutter ( 9045): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter ( 9045): │ 🐛 FS:<--- stopRecorder
I/flutter ( 9045): └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): │ #0 FlutterSoundRecorder._startRecorder (package:taudio/public/fs/flutter_sound_recorder.dart:831:13)
I/flutter ( 9045): │ #1 FlutterSoundRecorder.startRecorder.<anonymous closure> (package:taudio/public/fs/flutter_sound_recorder.dart:794:13)
I/flutter ( 9045): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter ( 9045): │ 🐛 FS:---> _startRecorder.
I/flutter ( 9045): └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/System.out( 9045): ---> writeAudioDataToFile
I/System.out( 9045): <--- writeAudioDataToFile
I/flutter ( 9045): ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): │ #0 FlutterSoundRecorder.startRecorderCompleted (package:taudio/public/fs/flutter_sound_recorder.dart:326:13)
I/flutter ( 9045): │ #1 MethodChannelFlutterSoundRecorder.channelMethodCallHandler.<anonymous closure> (package:flutter_sound_platform_interface/method_channel_flutter_sound_recorder.dart:129:24)
I/flutter ( 9045): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter ( 9045): │ 🐛 ---> startRecorderCompleted: true
I/flutter ( 9045): └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): │ #0 FlutterSoundRecorder.startRecorderCompleted (package:taudio/public/fs/flutter_sound_recorder.dart:335:13)
I/flutter ( 9045): │ #1 MethodChannelFlutterSoundRecorder.channelMethodCallHandler.<anonymous closure> (package:flutter_sound_platform_interface/method_channel_flutter_sound_recorder.dart:129:24)
I/flutter ( 9045): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter ( 9045): │ 🐛 <--- startRecorderCompleted: true
I/flutter ( 9045): └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): │ #0 FlutterSoundRecorder._startRecorder (package:taudio/public/fs/flutter_sound_recorder.dart:908:13)
I/flutter ( 9045): │ #1 <asynchronous suspension>
I/flutter ( 9045): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter ( 9045): │ 🐛 FS:<--- _startRecorder.
I/flutter ( 9045): └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9045): │ #0 FlutterSoundRecorder.startRecorder (package:taudio/public/fs/flutter_sound_recorder.dart:811:13)
I/flutter ( 9045): │ #1 <asynchronous suspension>
I/flutter ( 9045): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter ( 9045): │ 🐛 FS:<--- startRecorder
I/flutter ( 9045): └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
F/libc ( 9045): Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0 in tid 10010 (Thread-9), pid 9045 (yeconnectsocial)
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
Build fingerprint: 'samsung/a05mxx/a05m:14/UP1A.231005.007/A055FXXS8CYC3:user/release-keys'
Revision: '0'
ABI: 'arm64'
Processor: '7'
Timestamp: 2025-08-15 12:19:44.042267365+0100
Process uptime: 24s
Cmdline: com.example.appsocial
pid: 9045, tid: 10010, name: Thread-9 >>> com.example.appsocial <<<
uid: 10313
signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0000000000000000
Cause: null pointer dereference
x0 0000000000000000 x1 000000749957b188 x2 ffffffffffffffd0 x3 00000075c25cfaa0
x4 0000000000000001 x5 0000000000000001 x6 0000000000001008 x7 000000749957ac70
x8 0000000000001a80 x9 ffffffffffff8870 x10 0000000000000000 x11 000000749957b188
x12 00000075c25c9100 x13 0000000000000001 x14 0000000000000000 x15 0000000000000000
x16 00000075d792c6b0 x17 00000075baf91df0 x18 00000074704a0000 x19 b4000074bc1f3ba8
x20 b4000074bc1f3800 x21 0000000000000000 x22 000000749957c000 x23 00000075d79228c0
x24 00000000000002b8 x25 000000749957c000 x26 00000075d7929ad8 x27 0000000000000000
x28 0000000000000001 x29 000000749957b140
lr 00000075d78e9ad8 sp 000000749957b0f0 pc 00000075d78e9b10 pst 0000000060001000
19 total frames
backtrace:
#00 pc 00000000000a8b10 /system/lib64/libaudioclient.so (android::AudioTrack::releaseBuffer(android::AudioTrack::Buffer const*)+160) (BuildId: c9c85c1ccfec157826e4357bcfd80e2c)
#01 pc 00000000000b443c /system/lib64/libaudioclient.so (android::AudioTrack::write(void const*, unsigned long, bool)+428) (BuildId: c9c85c1ccfec157826e4357bcfd80e2c)
#02 pc 00000000001c2b14 /system/lib64/libandroid_runtime.so (int writeToTrack<signed char>(android::sp<android::AudioTrack> const&, int, signed char const*, int, int, bool)+372) (BuildId: f860997c17a32a85d39a4fcf9f819664)
#03 pc 00000000001bcb38 /system/lib64/libandroid_runtime.so (int android_media_AudioTrack_writeArray<_jbyteArray*>(_JNIEnv*, _jobject*, _jbyteArray*, int, int, int, unsigned char)+216) (BuildId: f860997c17a32a85d39a4fcf9f819664)
#04 pc 0000000002434fe8 /memfd:jit-cache (deleted) (offset 0x2000000) (art_jni_trampoline+152)
#05 pc 00000000024348c4 /memfd:jit-cache (deleted) (offset 0x2000000) (android.media.AudioTrack.write+580)
#06 pc 000000000032d194 /apex/com.android.art/lib64/libart.so (art_quick_invoke_stub+612) (BuildId: 80d2ab18f9d259d8e546c1e6bae752b1)
#07 pc 000000000067900c /apex/com.android.art/lib64/libart.so (bool art::interpreter::DoCall<false>(art::ArtMethod*, art::Thread*, art::ShadowFrame&, art::Instruction const*, unsigned short, bool, art::JValue*)+1580) (BuildId: 80d2ab18f9d259d8e546c1e6bae752b1)
#08 pc 00000000005c95d0 /apex/com.android.art/lib64/libart.so (void art::interpreter::ExecuteSwitchImplCpp<false>(art::interpreter::SwitchImplContext*)+868) (BuildId: 80d2ab18f9d259d8e546c1e6bae752b1)
#09 pc 000000000031c9b8 /apex/com.android.art/lib64/libart.so (ExecuteSwitchImplAsm+8) (BuildId: 80d2ab18f9d259d8e546c1e6bae752b1)
#10 pc 00000000001496b8 /data/app/~~wNPNIOz6T4qwkX3uMNDl2Q==/com.example.appsocial-1kyrZcga6M4tVVUSDbkq_A==/base.apk (xyz.canardoux.TauEngine.FlautoPlayerEngine$FeedThread.run+0)
#11 pc 00000000002dc564 /apex/com.android.art/lib64/libart.so (art::interpreter::Execute(art::Thread*, art::CodeItemDataAccessor const&, art::ShadowFrame&, art::JValue, bool, bool) (.__uniq.112435418011751916792819755956732575238.llvm.7923196258099814811)+332) (BuildId: 80d2ab18f9d259d8e546c1e6bae752b1)
#12 pc 00000000002dbd98 /apex/com.android.art/lib64/libart.so (artQuickToInterpreterBridge+888) (BuildId: 80d2ab18f9d259d8e546c1e6bae752b1)
#13 pc 0000000000344638 /apex/com.android.art/lib64/libart.so (art_quick_to_interpreter_bridge+88) (BuildId: 80d2ab18f9d259d8e546c1e6bae752b1)
#14 pc 000000000032d194 /apex/com.android.art/lib64/libart.so (art_quick_invoke_stub+612) (BuildId: 80d2ab18f9d259d8e546c1e6bae752b1)
#15 pc 00000000002de270 /apex/com.android.art/lib64/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+216) (BuildId: 80d2ab18f9d259d8e546c1e6bae752b1)
#16 pc 00000000004bfcf4 /apex/com.android.art/lib64/libart.so (art::Thread::CreateCallback(void*)+932) (BuildId: 80d2ab18f9d259d8e546c1e6bae752b1)
#17 pc 0000000000101c2c /apex/com.android.runtime/lib64/bionic/libc.so (__pthread_start(void*)+204) (BuildId: a6a4bb5d4c7b3e99262fee774c3907c6)
#18 pc 0000000000095a00 /apex/com.android.runtime/lib64/bionic/libc.so (__start_thread+64) (BuildId: a6a4bb5d4c7b3e99262fee774c3907c6)
In addition to what I have mentioned above, in my exact use case, I intend to record live audio chunks/frames as uint8list using tAudio library from device A and send it via websocket to device B and also play it via tAudio player.