// Method to get audio sample from an already existing item
private void OpenAudio_button_Click(object sender, RoutedEventArgs e)
{
OpenFileDialog dlg = new OpenFileDialog();
dlg.DefaultExt = ".wav"; // Default file extension
dlg.Filter = "Wave audio (.wav)|*.wav"; // Filter files by extension
dlg.InitialDirectory = TransformFilePath.GetParentDirectoryPath() + @"\Audio\Speech";
// Show save file dialog box
bool?result = dlg.ShowDialog();
// Process save file dialog box results
if (result == true)
{
filePath = dlg.FileName;
ChosenFileLabel.Text = "File: " + filePath.Substring(filePath.LastIndexOf('\\') + 1);
isFileSelected = true;
// enabe done button
DoneButton.IsEnabled = true;
// set ui stuff
SelectAudioButton.BorderBrush = Brushes.Purple;
SelectAudioButton.Foreground = Brushes.Purple;
}
}
// Method to convert audio files
private void ConvertAudio_button_Click(object sender, RoutedEventArgs e)
{
OpenFileDialog dlg = new OpenFileDialog();
dlg.DefaultExt = ".wav"; // Default file extension
dlg.Filter = "Audio documents (.wav)|*.wav"; // Filter files by extension
dlg.InitialDirectory = TransformFilePath.GetParentDirectoryPath() + @"\Audio";
dlg.Title = "Load audio to convert";
string noiseToConvertFilePath;
// Show save file dialog box
bool?result = dlg.ShowDialog();
// Process save file dialog box results
if (result == true)
{
noiseToConvertFilePath = dlg.FileName;
}
else
{
return;
}
// ask for destination
SaveFileDialog sfd = new SaveFileDialog();
sfd.DefaultExt = ".wav";
sfd.InitialDirectory = TransformFilePath.GetParentDirectoryPath() + @"\Audio";
sfd.Title = "Save new audio";
string newNoise;
// Show save file dialog box
result = sfd.ShowDialog();
// Process save file dialog box results
if (result == true)
{
newNoise = sfd.FileName;
}
else
{
return;
}
// convert existing file into a new one with 'desired' Hz
using (var reader = new WaveFileReader(noiseToConvertFilePath))
{
var newFormat = new WaveFormat(desiredHz, 16, 1);
using (var conversionStream = new WaveFormatConversionStream(newFormat, reader))
{
WaveFileWriter.CreateWaveFile(newNoise, conversionStream);
}
}
}
/// <summary>
/// Method to start/stop recording from the main microphone
/// </summary>
private void Record_button_Click(object sender, RoutedEventArgs e)
{
// In case user whants to start a recording session
if (!isRecordingOn)
{
// Ask user in which file to store audio data
string newfilePath = getFileName();
if (newfilePath == "")
{
return;
}
; // dialog canceled OR failed
filePath = newfilePath;
// Set some UI stuff
ChosenFileLabel.Text = "File: " + TransformFilePath.GetCanonicalName(filePath, ".wav");
StartRecodingButton.Content = "Stop recording";
StartRecodingButton.BorderBrush = Brushes.Purple;
StartRecodingButton.Foreground = Brushes.Purple;
waveForm.Points.Clear();
// Set the input settings of the audio recorder
waveIn = new WaveIn();
waveIn.DeviceNumber = selectedRecordingDevice;
waveIn.DataAvailable += waveIn_DataAvailable; // event to handle packs of recorded data
waveIn.RecordingStopped += waveIn_RecordingStopped; // event to notify user about finished recording
int channels = 1; // mono
waveIn.WaveFormat = new WaveFormat(sampleRate, channels);
// set some helpers
recorder = new RecordWAVandMP3(filePath, waveIn.WaveFormat); // helper to save recorded data
visualizer = new VisualizeAudioData(waveForm); // helper to visualize recorded data
// Starting recording
waveIn.StartRecording();
isRecordingOn = !isRecordingOn;
}
// In case user whants to stop the recording
else
{
// Set some UI stuff
StartRecodingButton.Content = "Start recording";
StartRecodingButton.BorderBrush = Brushes.Blue;
StartRecodingButton.Foreground = Brushes.Blue;
// stopping the recording
waveIn.StopRecording();
// Recording is in progress no more
isRecordingOn = !isRecordingOn;
}
}
// method to check if file was selected
private void NoiseChoosingWindow_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
// check if file was selected
if (isFileSelected)
{
MainWindow.NoiseFile = TransformFilePath.GetCanonicalName(filePath, ".wav"); // remember file name in main window
MainWindow.FullNoiseFile = filePath;
ClosedWithResult(this, e);
}
else
{
ClosedWithoutResult(this, e);
}
}
// Method to check if recording is on when closing the window
private void RecordingWindow_Closing(object sender, CancelEventArgs e)
{
if (isRecordingOn)
{
MessageBox.Show("Finish recording first!");
e.Cancel = true;
return;
}
// check if file was selected
if (isFileSelected)
{
MainWindow.SpeechFile = TransformFilePath.GetCanonicalName(filePath, ".wav"); // remember file name in main window
MainWindow.FullSpeechFile = filePath;
ClosedWithResult(this, e);
}
else
{
ClosedWithoutResult(this, e);
}
}
// Method to get file name in which to store audio from user
string getFileName()
{
SaveFileDialog dlg = new SaveFileDialog();
dlg.FileName = "AudioSample"; // Default file name
dlg.DefaultExt = ".wav"; // Default file extension
dlg.Filter = "Wave audio (.wav)|*.wav"; // Filter files by extension
dlg.InitialDirectory = TransformFilePath.GetParentDirectoryPath() + @"\Audio\Speech";
// Show save file dialog box
bool?result = dlg.ShowDialog();
// Process save file dialog box results
if (result == true)
{
return(dlg.FileName);
}
else
{
return("");
}
}
private void OpenNoiseAudio_button_Click(object sender, RoutedEventArgs e)
{
OpenFileDialog dlg = new OpenFileDialog();
dlg.DefaultExt = ".wav"; // Default file extension
dlg.Filter = "Audio documents (.wav)|*.wav"; // Filter files by extension
dlg.InitialDirectory = TransformFilePath.GetParentDirectoryPath() + @"\Audio\Noise";
// Show save file dialog box
Nullable <bool> result = dlg.ShowDialog();
// Process save file dialog box results
if (result == true)
{
isFileSelected = true;
filePath = dlg.FileName;
ChosenFileLabel.Content = "File: " + TransformFilePath.GetCanonicalName(filePath, ".wav");
// enable done button
DoneButton.IsEnabled = true;
}
}
public override string ToString()
{
return($"{TransformFilePath.FullName().Highlight()} => {ConfigFilePath.Name.Highlight()}");
}