/// <summary>
/// Starts processing of given text file(s) selected in inputTextBox
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void processButtonClicked(object sender, EventArgs e)
{
StartLoading();
var tuningChosen = GetNumTuning(chooseTuningBox.SelectedItem.ToString());
if (tuningChosen > 0)
{
NoteDetector.TransposeUp(tuningChosen);
}
else
{
NoteDetector.TransposeDown(-tuningChosen);
}
var threadCount = CalculateThreadCount(inputSampleTextBox.Text);
if (threadCount == 1)
{
//cutting away .wav and adding _notes.ly
new MainProcessor().ProcessSoundFile(inputSampleTextBox.Text.Trim(';'), inputSampleTextBox.Text.Trim(';').Substring(0, inputSampleTextBox.Text.Length - 4) + "_notes.ly", this);
}
else
{
FillQueue(inputSampleTextBox.Text);
var sideThreads = CreateThreads(threadCount);
Array.ForEach(sideThreads, thread => thread.Start());
new MainProcessor().ProcessSoundFiles(this);
Array.ForEach(sideThreads, thread => thread.Join());
}
Done();
}
public static bool operator <=(Note note1, Note note2)
{
var noteDet = new NoteDetector();
if (note1.GetType() == typeof(Pause) && note2.GetType() == typeof(Pause))
{
return(true);
}
return(note2.number > note1.number || ((note2.number == note1.number) && noteDet.noteTypes.IndexOf(note2.GetType()) >= noteDet.noteTypes.IndexOf(note1.GetType())));
}
public override int GetHashCode()
{
var noteDet = new NoteDetector();
if (this is Pause)
{
return(0);
}
return(noteDet.noteTypes.IndexOf(this.GetType()) * 100 + number + 1);
}
public int CompareTo(Note note)
{
if (this == note)
{
return(0);
}
var noteDet = new NoteDetector();
if (this.number > note.number || ((this.number == note.number) && noteDet.noteTypes.IndexOf(this.GetType()) > noteDet.noteTypes.IndexOf(note.GetType())))
{
return(1);
}
return(-1);
}
/// <summary>
/// Main method for processing the whole music sample
/// </summary>
/// <param name="inputFilePath"></param>
/// <param name="outputFileName"></param>
/// <param name="form"></param>
public void ProcessSoundFile(string inputFilePath, string outputFileName, SoundVisualizer form)
{
if (form.filesToProcess != null)
{
Monitor.Exit(form.filesToProcess);
}
#region processing header
BinaryReader headerStream = new BinaryReader(File.Open(inputFilePath, FileMode.Open));
ISoundReader soundReader = new WavSoundReader();
ProcessedMetaData metaData = soundReader.ReadHeader(headerStream);
SampleSize = metaData.channelsCount * metaData.bitDepth / 8;
sampleArraySize = (ChunkSize / SampleSize) + 1;
headerStream.Close();
#endregion
#region skipping header
FileStream dataStream = new FileStream(inputFilePath, FileMode.Open, FileAccess.Read);
dataStream.Seek(metaData.headerSize, SeekOrigin.Begin);
#endregion
#region processing data
Complex[] complexSamples = new Complex[sampleArraySize];
Complex[] extendedComplexSamples = new Complex[2 * sampleArraySize - 2];
IWindowFunction window = new HannWindowFunction();
byte[] byteValues = soundReader.ReadDataBuffer(dataStream, ChunkSize + SampleSize);
MusicSample musicSample = new MusicSample(metaData, inputFilePath);
musicSample.Notes = new List <Note>();
while (dataStream.Position < dataStream.Length - ChunkSize)
{
complexSamples = ToComplexSamples(metaData.channelsCount == 1 ? byteValues : ExtractByteChannel(byteValues, isEven: true), metaData.bitDepth, metaData.channelsCount);
INoiseDetector noiseDetector = new RMSNoiseDetector(2 << (metaData.bitDepth - 1));
if (noiseDetector.IsNoise(complexSamples))
{
Note detectedNote = new Pause();
musicSample.Notes.Add(detectedNote);
}
else
{
extendedComplexSamples = ExtendSamples(complexSamples);
window.Windowify(extendedComplexSamples);
extendedComplexSamples = extendedComplexSamples.MakeFFT().MakeHPS(HPSIterationsCount);
MaxFreqBin maxFreqBin = GetMaxFreqBin(extendedComplexSamples);
double maxFreq = CalculateMaxFreq(maxFreqBin.BinNumber, metaData, sampleArraySize);
NoteDetector noteDetector = new NoteDetector();
Note detectedNote = noteDetector.GetClosestNote(maxFreq / 2);
musicSample.Notes.Add(detectedNote);
}
soundReader.MoveDataBuffer(dataStream, window.OverlapSize, byteValues);
}
IErrorCorrector corrector = new OverlapWindowCorrector();
corrector.Correct(musicSample);
INoteLengthProcessor noteLengthProcessor = new DefaultNoteLengthProcessor();
noteLengthProcessor.ProcessSample(musicSample);
StreamWriter writer2 = new StreamWriter(outputFileName);
INoteWriter noteWriter = new LillyPondNoteWriter();
noteWriter.WriteAll(musicSample, writer2);
#endregion
}
public static bool operator >(Note note1, Note note2)
{
var noteDet = new NoteDetector();
return(note1 >= note2 && note1 != note2);
}
public static bool operator >=(Note note1, Note note2)
{
var noteDet = new NoteDetector();
return(note1 == note2 || !(note1 <= note2));
}
