/// <summary>
///
/// </summary>
/// <param name="audioSettings"></param>
public void UpdateEqualizer(AudioSettings audioSettings)
{
if (audioSettings.isEightBitSample)
_equalizer = new Equalizer8Bit(audioSettings, DrawingSpace1.ActualWidth, DrawingSpace1.ActualHeight, _UpdateGraphics);
else
_equalizer = new Equalizer16Bit(audioSettings, DrawingSpace1.ActualWidth, DrawingSpace1.ActualHeight, _UpdateGraphics);
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="settings">Current settings.</param>
/// <param name="width">Width.</param>
/// <param name="height">Height.</param>
/// <param name="updateGraphicsMethod">Method for updating graphics.</param>
public Equalizer16Bit(AudioSettings settings,
double width,
double height,
Action<IList<Rect>, IList<Rect>, IList<Point>, IList<Point>> updateGraphicsMethod)
: base(settings, width, height, updateGraphicsMethod)
{
}
/// <summary>
///
/// </summary>
/// <param name="audioSettings"></param>
public void UpdateEqualizer(AudioSettings audioSettings)
{
if (audioSettings.isEightBitSample)
{
_equalizer = new Equalizer8Bit(audioSettings, DrawingSpace1.ActualWidth, DrawingSpace1.ActualHeight, _UpdateGraphics);
}
else
{
_equalizer = new Equalizer16Bit(audioSettings, DrawingSpace1.ActualWidth, DrawingSpace1.ActualHeight, _UpdateGraphics);
}
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="settings">Audio settings.</param>
/// <param name="width">Width.</param>
/// <param name="height">Height.</param>
/// <param name="updateGraphicsMethod">Method for updating graphics.</param>
public EqualizerBase(AudioSettings settings, double width,
double height, Action <IList <Rect>, IList <Rect>, IList <Point>, IList <Point> > updateGraphicsMethod)
{
_dBands = new double[21];
Bands = new IIRFilter();
Settings = settings;
_Load();
_RecalculateBiquads();
DrawingHeight = height;
DrawingWidth = width;
UpdateGraphicsMethod = updateGraphicsMethod;
}
/// <summary>
/// Starts or stops recognizing process.
/// </summary>
private void StopStartSwitch_Click(object sender, RoutedEventArgs e)
{
bool isChecked = StopStartSwitch.IsChecked.GetValueOrDefault();
if (isChecked)
{
if (!_IsEnvironmentGood())
return;
if (_recognizer != null && _recognizer.State == ApplicationState.Recording)
return;
// Create appropriate settings.
AudioSettings audioSettings = new AudioSettings();
audioSettings.AudioInputDevice = _selectedDevice; // -1 default
audioSettings.isEightBitSample = false; // 8 or 16 bits
audioSettings.Channels = 1; // mono
audioSettings.SamplesPerSecond = 16000;// 48000;
// Load equalizer.
GraphicEqualizer.UpdateEqualizer(audioSettings);
// Count timing
_StartTimeCounters();
// Start recognizing.
_recognizer.Start(audioSettings, GraphicEqualizer.ProcessSound,
_selectedShortCultureName, TemporaryFolderPath.Text);
// Disable some elements.
SettingsTab.IsEnabled = false;
}
else
{
if (_recognizer == null || _recognizer.State == ApplicationState.Idle)
return;
_StopTimeCounters();
_recognizer.Stop();
// Enable disabled elements.
SettingsTab.IsEnabled = true;
}
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="settings">Current settings.</param>
/// <param name="width">Width.</param>
/// <param name="height">Height.</param>
/// <param name="updateGraphicsMethod">Method for updating graphics.</param>
public Equalizer8Bit(AudioSettings settings, double width,
double height,
Action <IList <Rect>, IList <Rect>, IList <Point>, IList <Point> > updateGraphicsMethod)
: base(settings, width, height, updateGraphicsMethod)
{
}
/// <summary>
/// Starts or stops recognizing process.
/// </summary>
private void StopStartSwitch_Click(object sender, RoutedEventArgs e)
{
bool isChecked = StopStartSwitch.IsChecked.GetValueOrDefault();
if (isChecked)
{
if (!_IsEnvironmentGood())
return;
if (_recognizer != null && _recognizer.State == ApplicationState.Recording)
return;
// Create appropriate settings.
AudioSettings audioSettings = new AudioSettings();
audioSettings.AudioInputDevice = _selectedDevice; // -1 default
audioSettings.isEightBitSample = false; // 8 or 16 bits
audioSettings.Channels = 1; // mono
audioSettings.SamplesPerSecond = 16000;// 48000;
// Load equalizer.
GraphicEqualizer.UpdateEqualizer(audioSettings);
// Count timing
_StartTimeCounters();
// Start recognizing.
_recognizer.Start(audioSettings, GraphicEqualizer.ProcessSound,
_selectedShortCultureName, TemporaryFolderPath.Text);
// Disable some elements.
SettingsTab.IsEnabled = false;
}
else
{
if (_recognizer == null || _recognizer.State == ApplicationState.Idle)
return;
_StopTimeCounters();
_recognizer.Stop();
// Enable disabled elements.
SettingsTab.IsEnabled = true;
}
}
/// <summary>
/// Loads recorder.
/// </summary>
/// <param name="settings">Audio settings.</param>
/// <param name="equalizer">Equalizer.</param>
private void _RecorderLoad(AudioSettings settings)
{
try
{
if (_isRecorderLoaded)
_RecorderUnLoad();
// Prepare destination stream.
if (_streamMemory != null)
_streamMemory.Dispose();
_streamMemory = new MemoryStream();
// Create wave format and load recorder.
_waveFormat = _CreateWaveFormat((uint)settings.SamplesPerSecond, settings.isEightBitSample, settings.Channels);
_recorder = new WaveInRecorder(settings.AudioInputDevice, new BufferDoneEventHandler(_RecordData), _waveFormat);
_isRecorderLoaded = true;
}
catch (Exception)
{
throw new Exception(Properties.Resources.DeviceNotFoundError);
}
}
/// <summary>
/// Starts recording of sound with using specified audio settings.
/// </summary>
/// <param name="settings">Audio settings.</param>
/// <param name="equalizer">Equalizer.</param>
/// <returns>Changed state of application.</returns>
public ApplicationState Start(AudioSettings settings,
Action<List<byte>, IntPtr> soundProcessing,
string shortLanguageName,
string temporaryFolder)
{
_shortLanguageName = shortLanguageName;
_tempWavFilePath = _GetTemporaryFilePath(temporaryFolder, "wav");
_tempFlacFilePath = _GetTemporaryFilePath(temporaryFolder, "flac");
_soundProcessing = soundProcessing;
if (State == ApplicationState.Idle)
{
_RecorderLoad(settings);
_timer.Start();
_RecordWave();
}
else
{
Debug.Assert(false);
}
return State;
}
