bool PrepareAudioRecording()
{
//Declare string for application temp path and tack on the file extension
string fileName = string.Format("Myfile{0}.aac", DateTime.Now.ToString("yyyyMMddHHmmss"));
string tempRecording = NSBundle.MainBundle.BundlePath + "/../tmp/" + fileName;
Console.WriteLine(tempRecording);
this.audioFilePath = NSUrl.FromFilename(tempRecording);
//set up the NSObject Array of values that will be combined with the keys to make the NSDictionary
NSObject[] values = new NSObject[]
{
NSNumber.FromFloat(44100.0f),
NSNumber.FromInt32((int)MonoTouch.AudioToolbox.AudioFormatType.MPEG4AAC),
NSNumber.FromInt32(1),
NSNumber.FromInt32((int)AVAudioQuality.High)
};
//Set up the NSObject Array of keys that will be combined with the values to make the NSDictionary
NSObject[] keys = new NSObject[]
{
AVAudioSettings.AVSampleRateKey,
AVAudioSettings.AVFormatIDKey,
AVAudioSettings.AVNumberOfChannelsKey,
AVAudioSettings.AVEncoderAudioQualityKey
};
//Set Settings with the Values and Keys to create the NSDictionary
settings = NSDictionary.FromObjectsAndKeys(values, keys);
//Set recorder parameters
NSError error;
recorder = AVAudioRecorder.ToUrl(this.audioFilePath, settings, out error);
if ((recorder == null) || (error != null))
{
Console.WriteLine(error);
return(false);
}
//Set Recorder to Prepare To Record
if (!recorder.PrepareToRecord())
{
recorder.Dispose();
recorder = null;
return(false);
}
recorder.FinishedRecording += delegate(object sender, AVStatusEventArgs e) {
recorder.Dispose();
recorder = null;
Console.WriteLine("Done Recording (status: {0})", e.Status);
};
return(true);
}
public void StartRecordingFroMic(string FilePath)
{
// set some default values for recording settings
NSObject[] keys = new NSObject[]
{
AVAudioSettings.AVSampleRateKey,
AVAudioSettings.AVFormatIDKey,
AVAudioSettings.AVNumberOfChannelsKey,
AVAudioSettings.AVEncoderAudioQualityKey,
};
NSObject[] values = new NSObject[]
{
NSNumber.FromFloat(44100.0f),
NSNumber.FromInt32((int)AudioFileType.WAVE),
NSNumber.FromInt32(1),
NSNumber.FromInt32((int)AVAudioQuality.Max),
};
NSDictionary settings = NSDictionary.FromObjectsAndKeys(values, keys);
// define a filename and location for the output file
string fileName = FilePath;
string path = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), fileName);
outputFileUrl = NSUrl.FromFilename(path);
// pass the configured url to the AVAudioRecorder object
NSError error = new NSError();
_mic = AVAudioRecorder.ToUrl(outputFileUrl, settings, out error);
if (error != null)
{
// prepare and start recording
_mic.PrepareToRecord();
_mic.Record();
}
else
{
throw new Exception("Error loading mic: " + error.ToString());
}
}
public static void StartRecording(string FileName)
{
NSObject[] values = new NSObject[]
{
NSNumber.FromFloat(44100.0f),
NSNumber.FromInt32((int)AudioFormatType.LinearPCM),
NSNumber.FromInt32(1),
NSNumber.FromInt32((int)AVAudioQuality.High)
};
NSObject[] keys = new NSObject[]
{
AVAudioSettings.AVSampleRateKey,
AVAudioSettings.AVFormatIDKey,
AVAudioSettings.AVNumberOfChannelsKey,
AVAudioSettings.AVEncoderAudioQualityKey
};
NSDictionary settings = NSDictionary.FromObjectsAndKeys(values, keys);
NSUrl url = NSUrl.FromFilename(FileName);
// Set recorder parameters
NSError error;
_recorder = AVAudioRecorder.ToUrl(url, settings, out error);
if (_recorder == null)
{
Console.WriteLine(error);
return;
}
// Set Metering Enabled so you can get the time of the wav file
_recorder.MeteringEnabled = true;
_recorder.PrepareToRecord();
_recorder.Record();
}
