/// <summary>
/// Initializes a new instance of the <see cref="WaveRecorderViewModel"/> class.
/// </summary>
public AudioProcessor(string file)
{
SampleRate = 16000;
IsRecording = true;
var app = Resolver.Resolve <IXFormsApp>();
var device = Resolver.Resolve <IDevice>();
if (device != null)
{
_audioStream = device.Microphone;
_recorder = new WaveRecorder();
}
var fileStream = DependencyService.Get <IFileLoader>().LoadWriteStream(file);
Record = new Command(
() => {
_audioStream.OnBroadcast += audioStream_OnBroadcast;
//this.audioStream.Start.Execute(this.SampleRate);
_recorder.StartRecorder(
_audioStream,
fileStream,
SampleRate).ContinueWith(t => {
if (t.IsCompleted)
{
IsRecording = t.Result;
System.Diagnostics.Debug.WriteLine("Microphone recorder {0}.", IsRecording ? "was started" : "failed to start.");
Record.ChangeCanExecute();
Stop.ChangeCanExecute();
}
else if (t.IsFaulted)
{
_audioStream.OnBroadcast -= audioStream_OnBroadcast;
}
});
},
() => RecordingEnabled &&
_audioStream.SupportedSampleRates.Contains(SampleRate) &&
!IsRecording &&
device.FileManager != null
);
Stop = new Command(
async() => {
_audioStream.OnBroadcast -= audioStream_OnBroadcast;
await _recorder.StopRecorder();
//this.audioStream.Stop.Execute(this);
Debug.WriteLine("Microphone recorder was stopped.");
Record.ChangeCanExecute();
Stop.ChangeCanExecute();
IsRecording = false;
},
() => {
return(IsRecording);
}
);
}
/// <summary>
/// Initializes a new instance of the <see cref="WaveRecorderViewModel"/> class.
/// </summary>
public WaveRecorderViewModel()
{
SampleRate = 16000;
var app = Resolver.Resolve <IXFormsApp>();
//this.FileName = System.IO.Path.Combine(app.AppDataDirectory, "audiosample.wav");
FileName = Device.OnPlatform(
System.IO.Path.Combine(app.AppDataDirectory, "audiosample.wav"),
"audiosample.wav",
System.IO.Path.Combine(app.AppDataDirectory, "audiosample.wav")
);
var device = Resolver.Resolve <IDevice>();
if (device != null)
{
_audioStream = device.Microphone;
_recorder = new WaveRecorder();
}
Record = new Command(
() =>
{
_audioStream.OnBroadcast += audioStream_OnBroadcast;
//this.audioStream.Start.Execute(this.SampleRate);
_recorder.StartRecorder(
_audioStream,
device.FileManager.OpenFile(FileName, Platform.Services.IO.FileMode.Create, Platform.Services.IO.FileAccess.Write),
SampleRate).ContinueWith(t =>
{
if (t.IsCompleted)
{
IsRecording = t.Result;
System.Diagnostics.Debug.WriteLine("Microphone recorder {0}.", IsRecording ? "was started" : "failed to start.");
Record.ChangeCanExecute();
Stop.ChangeCanExecute();
}
else if (t.IsFaulted)
{
_audioStream.OnBroadcast -= audioStream_OnBroadcast;
}
});
},
() => RecordingEnabled &&
_audioStream.SupportedSampleRates.Contains(SampleRate) &&
!IsRecording &&
device.FileManager != null
);
Stop = new Command(
async() =>
{
_audioStream.OnBroadcast -= audioStream_OnBroadcast;
await _recorder.StopRecorder();
//this.audioStream.Stop.Execute(this);
System.Diagnostics.Debug.WriteLine("Microphone recorder was stopped.");
Record.ChangeCanExecute();
Stop.ChangeCanExecute();
},
() =>
{
return(IsRecording);
}
);
}
