Closed: How to read a temporary file as bytes in Flutter? - flutter

Question

So basically I am using flutter_sound to record an audio file:
class AudioRecorder {
FlutterSoundRecorder? _audioRecorder;
String tempFilePath = "audio_recording.mp4";
Future<void> init() async {
_audioRecorder = FlutterSoundRecorder();
await _audioRecorder!.openRecorder();
}
Future<void> dispose() async {
await _audioRecorder!.openRecorder();
_audioRecorder = null;
}
Future<void> startRecording() async {
await _audioRecorder!.startRecorder(toFile: tempFilePath);
}
Future<File> stopRecording() async {
await _audioRecorder!.stopRecorder();
return File(tempFilePath);
}
}
This class works as intended and a file is returned by stopRecording();.
The issue:
When I try to audioFile.readAsBytesSync();, this error occurs:
Unhandled Exception: FileSystemException: Cannot open file, path = 'audio_recording.mp4' (OS Error: No such file or directory, errno = 2)
What I think is wrong:
When I do print(audioFile.path);, the output is "audio_recording.mp4" however when I stop recording the audio, flutter_sound also prints a path to the file but its different:
"/Users/.../Library/Developer/CoreSimulator/Devices/.../data/Containers/Data/Application/.../tmp/audio_recording.mp4"
When I readAsBytesSync to a File object that has this path, there is no exception. So I somehow have to get this path but I cannot figure out how. I have tried using path_provider and getTemporaryDirectory but its to no avail since the path from getTemporaryDirectory is different to the one printed by flutter_sound.
How could I fix this?
Thank you!