private void speakButton_Click(object sender, EventArgs e)
{
string sentence = sentenceTextBox.Text;
if (sentence != "")
{
speechVisualizer.MarkerList = new List <SoundMarker>();
speechVisualizer.SetPitchPeriodSpecification(null);
string voiceName = voiceSelectionComboBox.SelectedItem.ToString();
speechSynthesizer.SetOutputToWaveFile("./tmpOutput.wav", new SpeechAudioFormatInfo(16000, AudioBitsPerSample.Sixteen, AudioChannel.Mono));
speechSynthesizer.Speak(sentence);
speechSynthesizer.SetOutputToDefaultAudioDevice();
speechSynthesizer.SelectVoice(voiceName);
speechSynthesizer.Speak(sentence);
currentSound = new WAVSound();
currentSound.LoadFromFile("./tmpOutput.wav");
double startTime = currentSound.GetFirstTimeAboveThreshold(0, 10, 20);
double endTime = currentSound.GetLastTimeAboveThreshold(0, 10, 20);
currentSound = currentSound.Extract(startTime, endTime);
speechVisualizer.SetRange(0, currentSound.GetDuration(), -32768, 32768);
speechVisualizer.SetSound(currentSound);
speechVisualizer.Invalidate();
soundTypeIdentificationButton.Enabled = true;
playSoundButton.Enabled = true;
modifySoundButton.Enabled = true;
saveSoundToolStripMenuItem.Enabled = true;
}
}
public IWRRecognitionResult RecognizeSingle(WAVSound sound)
{
// Compute the features of the current sound
sound.SubtractMean();
double startTime = sound.GetFirstTimeAboveThreshold(0, soundExtractionMovingAverageLength,
soundExtractionThreshold);
double endTime = sound.GetLastTimeAboveThreshold(0, soundExtractionMovingAverageLength,
soundExtractionThreshold);
WAVSound extractedInstance = sound.Extract(startTime, endTime);
if (extractedInstance == null)
{
return(null);
} // 20170114
extractedInstance.PreEmphasize(preEmphasisThresholdFrequency);
WAVFrameSet frameSet = new WAVFrameSet(extractedInstance, frameDuration, frameShift);
frameSet.ApplyHammingWindows(alpha);
SoundFeatureSet soundFeatureSet = new SoundFeatureSet();
List <SoundFeature> autoCorrelationFeatureList = frameSet.GetAutoCorrelationSeries("AutoCorrelation", autoCorrelationOrder);
soundFeatureSet.FeatureList.AddRange(autoCorrelationFeatureList);
List <SoundFeature> lpcAndCepstralFeatureList = frameSet.GetLPCAndCepstralSeries("LPC", lpcOrder, "Cepstral", cepstralOrder);
soundFeatureSet.FeatureList.AddRange(lpcAndCepstralFeatureList);
SoundFeature relativeNumberOfZeroCrossingsFeature = frameSet.GetRelativeNumberOfZeroCrossingsSeries("RNZC");
soundFeatureSet.FeatureList.Add(relativeNumberOfZeroCrossingsFeature);
soundFeatureSet.SetNormalizedTime();
soundFeatureSet.Interpolate(numberOfValuesPerFeature);
IWRRecognitionResult recognitionResult = new IWRRecognitionResult();
recognitionResult.SoundFeatureSet = soundFeatureSet;
if (averageSoundFeatureSetList != null)
{
foreach (SoundFeatureSet averageSoundFeatureSet in averageSoundFeatureSetList)
{
double deviation = SoundFeatureSet.GetDeviation(averageSoundFeatureSet, soundFeatureSet, weightList);
string soundName = averageSoundFeatureSet.Information;
recognitionResult.DeviationList.Add(new Tuple <string, double>(soundName, deviation));
}
recognitionResult.DeviationList.Sort((a, b) => a.Item2.CompareTo(b.Item2));
}
return(recognitionResult);
}
