public bool RecordAudio()
{
if (string.IsNullOrEmpty(folder) || string.IsNullOrEmpty(directoryname))
{
return false;
}
//--test
// get all under root:
/*
var directories = Directory.EnumerateDirectories("./");
foreach (var directory in directories)
{
Console.WriteLine(directory);
}
*/
// read text file:
/*
var text = File.ReadAllText("TestData/ReadMe.txt");
Console.WriteLine(text);
*/
// xml stream reader:
/*
using (TextReader reader = new StreamReader("./TestData/test.xml"))
{
System.Xml.Serialization.XmlSerializer serializer = new System.Xml.Serialization.XmlSerializer(typeof(MyObject));
var xml = (MyObject)serializer.Deserialize(reader);
}
*/
try
{
Directory.CreateDirectory(directoryname);
fileName = string.Format("Audio{0}.aac", DateTime.Now.ToString("yyyyMMddHHmmss"));
path = Path.Combine(directoryname, fileName);
_recorder = new MediaRecorder();
_recorder.Reset();
_recorder.SetAudioSource(AudioSource.Mic);
_recorder.SetOutputFormat(OutputFormat.Default);
_recorder.SetAudioEncoder(AudioEncoder.Aac);
_recorder.SetOutputFile(path);
_recorder.Prepare();
_recorder.Start();
return true;
}
catch (System.Exception ex)
{
_recorder = null;
fileName = string.Empty;
var test = ex.Message;
return false;
}
}
public void SetUpRecoder()
{
try
{
if (null == activity)
{
return;
}
if (userResponse == UserResponse.Video)
{
mediaRecorder = new MediaRecorder();
mediaRecorder.Reset();
mediaRecorder.SetAudioSource(AudioSource.Mic);
mediaRecorder.SetVideoSource(VideoSource.Surface);
mediaRecorder.SetOutputFormat(OutputFormat.Mpeg4);
mediaRecorder.SetOutputFile(path + "/test.mp4");
mediaRecorder.SetVideoEncodingBitRate(10000000);
mediaRecorder.SetVideoFrameRate(30);
mediaRecorder.SetVideoSize(videoSize.Width, videoSize.Height);
mediaRecorder.SetVideoEncoder(VideoEncoder.H264);
mediaRecorder.SetAudioEncoder(AudioEncoder.Aac);
//int rotation = (int)activity.WindowManager.DefaultDisplay.Rotation;
//int orientation = ORIENTATIONS.Get(rotation);
if (LensFacing == CameraFacing.BACK)
{
mediaRecorder.SetOrientationHint(90);
}
else
{
mediaRecorder.SetOrientationHint(270);
}
mediaRecorder.SetMaxDuration(30000);
mediaRecorder.Prepare();
}
else
{
mediaRecorder = new MediaRecorder();
mediaRecorder.Reset();
mediaRecorder.SetAudioSource(AudioSource.Mic);
mediaRecorder.SetOutputFormat(OutputFormat.ThreeGpp);
mediaRecorder.SetAudioEncoder(AudioEncoder.AmrNb);
mediaRecorder.SetOutputFile(path + "/test.mp3");
mediaRecorder.SetMaxDuration(30000);
mediaRecorder.Prepare();
}
}
catch (System.Exception ex)
{
}
}
public void OnCompletion(MediaRecorder recorder)
{
f.Close();
if (!failed)
{
recorder.Reset();
recorder.Release();
try
{
System.IO.File.Move(tempFilename, outputFilename);
System.IO.File.Delete(tempFilename);
} catch
{
}
}
}
//Used for entering the Mandarin_ma speech processing screen
void HandleMandarin_Ma_Male_Select()
{
SetContentView (Resource.Layout.Mandarin_Mother_Male);
string RecordPath = "/sdcard/Recording.mp3";
//string RecordPath = Environment.getExternalStorageDirectory ()
// .getAbsolutePath () + "/Recording.mp3";
//string RecordPath = Android.OS.Environment.ExternalStorageDirectory.AbsolutePath + "/Recording.3gpp";
//string RecordPath = this.file.getAbsolutePath().substring(8)
Button PlayStock = FindViewById<Button> (Resource.Id.PlayMa);
PlayBack = FindViewById<Button> (Resource.Id.PlayBack);
Button BackToMandarin = FindViewById<Button> (Resource.Id.BackToMandarin);
RecordVoice = FindViewById<Button> (Resource.Id.Record);
StopRecord = FindViewById<Button> (Resource.Id.Stop);
StockPlayer = MediaPlayer.Create(this, Resource.Raw.mother);
_recorder = new MediaRecorder ();
_player = new MediaPlayer ();
//Click Event Handlers
PlayStock.Click += delegate {
StockPlayer.Start();
};
RecordVoice.Click += delegate {
RecordVoice.Enabled = !RecordVoice.Enabled;
StopRecord.Enabled = !StopRecord.Enabled;
if (PlayBack.Enabled==true){
PlayBack.Enabled = false;
}
_recorder.SetAudioSource (AudioSource.Mic);
_recorder.SetOutputFormat (OutputFormat.Mpeg4);
_recorder.SetOutputFile(RecordPath);
_recorder.SetAudioEncoder (AudioEncoder.Aac);
_recorder.Prepare();
_recorder.Start ();
};
//Stops recording
StopRecord.Click += delegate {
StopRecord.Enabled =! StopRecord.Enabled;
if (PlayBack.Enabled==false){
PlayBack.Enabled = true;
}
_recorder.Stop ();
_recorder.Reset ();
/* For instant playback
_player.SetDataSource (RecordPath);
_player.Prepare ();
_player.Start ();
*/
RecordVoice.Enabled = !RecordVoice.Enabled;
};
PlayBack.Click += delegate {
RecordPlayer = new MediaPlayer ();
RecordPlayer.SetDataSource (RecordPath);
RecordPlayer.Prepare ();
RecordPlayer.Start ();
};
BackToMandarin.Click += delegate {
HandleMandarinSelect ();
};
}
