private static List<bool[]> GetFingerprintSignatures(FingerprintService fingerprintService, float[] samples, string name)
{
Mirage.DbgTimer t = new Mirage.DbgTimer();
t.Start();
// work config
WorkUnitParameterObject param = new WorkUnitParameterObject();
param.FingerprintingConfiguration = fingerprintingConfigCreation;
// Get fingerprints
double[][] LogSpectrogram;
List<double[][]> spectralImages;
List<bool[]> fingerprints = fingerprintService.CreateFingerprintsFromAudioSamples(samples, param, out LogSpectrogram, out spectralImages);
#if DEBUG
if (Analyzer.DEBUG_INFO_VERBOSE) {
// Image Service
ImageService imageService =
new ImageService(fingerprintService.SpectrumService, fingerprintService.WaveletService);
int width = param.FingerprintingConfiguration.FingerprintLength;
int height = param.FingerprintingConfiguration.LogBins;
imageService.GetImageForFingerprints(fingerprints, width, height, 2).Save(name + "_fingerprints.png");
}
#endif
Mirage.Dbg.WriteLine("GetFingerprintSignatures Execution Time: " + t.Stop().TotalMilliseconds + " ms");
return fingerprints;
}
private static List<int[]> TestSoundfingerprintingAlgorithm(float[] samples, string name)
{
// work config
WorkUnitParameterObject param = new WorkUnitParameterObject();
param.FingerprintingConfiguration = fingerprintingConfig;
// Soundfingerprinting Service
FingerprintService fingerprintService = GetSoundfingerprintingService();
// Image Service
ImageService imageService =
new ImageService(fingerprintService.SpectrumService, fingerprintService.WaveletService);
// Get fingerprints
double[][] LogSpectrogram;
List<bool[]> fingerprints = fingerprintService.CreateFingerprintsFromAudioSamples(samples, param, out LogSpectrogram);
int width = param.FingerprintingConfiguration.FingerprintLength;
int height = param.FingerprintingConfiguration.LogBins;
imageService.GetImageForFingerprints(fingerprints, width, height, 2).Save("imageservice_" + name + "_fingerprints.png");
IPermutations permutations = new LocalPermutations("Soundfingerprinting\\perms.csv", ",");
/*
Soundfingerprinting.DuplicatesDetector.DataAccess.Repository repository = new Soundfingerprinting.DuplicatesDetector.DataAccess.Repository(permutations);
// Define track
Soundfingerprinting.DuplicatesDetector.Model.Track track
= new Soundfingerprinting.DuplicatesDetector.Model.Track {
Title = name
};
*/
Soundfingerprinting.Hashing.MinHash hasher = new Soundfingerprinting.Hashing.MinHash(permutations);
List<int[]> signatures = new List<int[]>();
foreach (bool[] fingerprint in fingerprints)
{
int[] signature = hasher.ComputeMinHashSignature(fingerprint); /*Compute min-hash signature out of signature*/
signatures.Add(signature);
}
return signatures;
}
public CompareAudioForm()
{
//
// The InitializeComponent() call is required for Windows Forms designer support.
//
InitializeComponent();
//
// TODO: Add constructor code after the InitializeComponent() call.
//
// Instansiate Soundfingerprinting Repository
FingerprintService fingerprintService = Analyzer.GetSoundfingerprintingService();
this.databaseService = DatabaseService.Instance;
IPermutations permutations = new LocalPermutations("Soundfingerprinting\\perms.csv", ",");
//IPermutations permutations = new LocalPermutations("Soundfingerprinting\\perms-new.csv", ",");
IFingerprintingConfiguration fingerprintingConfigCreation = new FullFrequencyFingerprintingConfiguration();
repository = new Repository(permutations, databaseService, fingerprintService);
ImageService imageService = new ImageService(fingerprintService.SpectrumService, fingerprintService.WaveletService);
FileInfo filePathAudio1 = new FileInfo(@"C:\Users\perivar.nerseth\Music\Test Samples Database\VDUB1 Snare 004.wav");
FileInfo filePathAudio2 = new FileInfo(@"C:\Users\perivar.nerseth\Music\Test Samples Search\VDUB1 Snare 004 - Start.wav");
int fingerprintsPerRow = 2;
double[][] logSpectrogram1 = null;
double[][] logSpectrogram2 = null;
List<bool[]> fingerprints1 = null;
List<bool[]> fingerprints2 = null;
WorkUnitParameterObject file1Param = Analyzer.GetWorkUnitParameterObjectFromAudioFile(filePathAudio1);
if (file1Param != null) {
file1Param.FingerprintingConfiguration = fingerprintingConfigCreation;
// Get fingerprints
fingerprints1 = fingerprintService.CreateFingerprintsFromAudioSamples(file1Param.AudioSamples, file1Param, out logSpectrogram1);
pictureBox1.Image = imageService.GetSpectrogramImage(logSpectrogram1, logSpectrogram1.Length, logSpectrogram1[0].Length);
pictureBoxWithInterpolationMode1.Image = imageService.GetImageForFingerprints(fingerprints1, file1Param.FingerprintingConfiguration.FingerprintLength, file1Param.FingerprintingConfiguration.LogBins, fingerprintsPerRow);
}
WorkUnitParameterObject file2Param = Analyzer.GetWorkUnitParameterObjectFromAudioFile(filePathAudio2);
if (file2Param != null) {
file2Param.FingerprintingConfiguration = fingerprintingConfigCreation;
// Get fingerprints
fingerprints2 = fingerprintService.CreateFingerprintsFromAudioSamples(file2Param.AudioSamples, file2Param, out logSpectrogram2);
pictureBox2.Image = imageService.GetSpectrogramImage(logSpectrogram2, logSpectrogram2.Length, logSpectrogram2[0].Length);
pictureBoxWithInterpolationMode2.Image = imageService.GetImageForFingerprints(fingerprints2, file2Param.FingerprintingConfiguration.FingerprintLength, file2Param.FingerprintingConfiguration.LogBins, fingerprintsPerRow);
}
MinHash minHash = repository.MinHash;
// only use the first signatures
bool[] signature1 = fingerprints1[0];
bool[] signature2 = fingerprints2[0];
if (signature1 != null && signature2 != null) {
int hammingDistance = MinHash.CalculateHammingDistance(signature1, signature2);
double jaqSimilarity = MinHash.CalculateJaqSimilarity(signature1, signature2);
lblSimilarity.Text = String.Format("Hamming: {0} JAQ: {1}", hammingDistance, jaqSimilarity);
}
}
private static void TestSoundfingerprintingAlgorithm(string filename, string name)
{
// work config
WorkUnitParameterObject param = new WorkUnitParameterObject();
param.PathToAudioFile = filename;
param.StartAtMilliseconds = 0;
param.MillisecondsToProcess = 0;
param.FingerprintingConfiguration = fingerprintingConfig;
// Soundfingerprinting Service
FingerprintService fingerprintService = GetSoundfingerprintingService();
// Image Service
ImageService imageService = new ImageService(
fingerprintService.SpectrumService,
fingerprintService.WaveletService);
// Configuration
AudioServiceConfiguration audioServiceConfiguration = new AudioServiceConfiguration
{
LogBins = fingerprintingConfig.LogBins,
LogBase = fingerprintingConfig.LogBase,
MaxFrequency = fingerprintingConfig.MaxFrequency,
MinFrequency = fingerprintingConfig.MinFrequency,
Overlap = fingerprintingConfig.Overlap,
SampleRate = fingerprintingConfig.SampleRate,
WdftSize = fingerprintingConfig.WdftSize,
NormalizeSignal = fingerprintingConfig.NormalizeSignal,
UseDynamicLogBase = fingerprintingConfig.UseDynamicLogBase
};
double[][] spectrogram = fingerprintService.AudioService.CreateSpectrogram(filename, new Mirage.HannWindow(fingerprintingConfig.WdftSize), fingerprintingConfig.SampleRate, fingerprintingConfig.Overlap, fingerprintingConfig.WdftSize);
imageService.GetSpectrogramImage(spectrogram, 600, 400).Save("imageservice_" + name + "_specgram.png");
/*
Comirva.Audio.Util.Maths.Matrix stftdata = new Comirva.Audio.Util.Maths.Matrix(spectrogram).Transpose();
#if DEBUG
if (Analyzer.DEBUG_INFO_VERBOSE) {
if (DEBUG_OUTPUT_TEXT) {
stftdata.WriteAscii(name + "_stftdata2.ascii");
stftdata.WriteCSV(name + "_stftdata2.csv", ";");
}
// same as specgram(audio*32768, 2048, 44100, hanning(2048), 1024);
stftdata.DrawMatrixImageLogValues(name + "_specgram2.png", true);
// spec gram with log values for the y axis (frequency)
stftdata.DrawMatrixImageLogY(name + "_specgramlog2.png", SAMPLING_RATE, 20, SAMPLING_RATE/2, 120, WINDOW_SIZE);
}
#endif
*/
double[][] logSpectrogram = fingerprintService.AudioService.CreateLogSpectrogram(filename, new Mirage.HannWindow(fingerprintingConfig.WdftSize), audioServiceConfiguration);
imageService.GetLogSpectralImages(logSpectrogram, fingerprintingConfig.Stride, fingerprintingConfig.FingerprintLength, fingerprintingConfig.Overlap, 2).Save("imageservice_" + name + "_specgram_logimages.png");
Comirva.Audio.Util.Maths.Matrix stftdataLog = new Comirva.Audio.Util.Maths.Matrix(logSpectrogram).Transpose();
#if DEBUG
if (Analyzer.DEBUG_INFO_VERBOSE) {
if (DEBUG_OUTPUT_TEXT) {
stftdataLog.WriteAscii(name + "_stftdataLog.ascii");
stftdataLog.WriteCSV(name + "_stftdataLog.csv", ";");
}
// same as specgram(audio*32768, 2048, 44100, hanning(2048), 1024);
stftdataLog.DrawMatrixImageLogValues(name + "_stftdataLog.png", true);
}
#endif
// Get fingerprints
double[][] LogSpectrogram;
List<bool[]> fingerprints = fingerprintService.CreateFingerprintsFromAudioFile(param, out LogSpectrogram);
int width = fingerprintingConfig.FingerprintLength;
int height = fingerprintingConfig.LogBins;
imageService.GetImageForFingerprints(fingerprints, width, height, 2).Save("imageservice_" + name + "_fingerprints.png");
/*
IPermutations permutations = new LocalPermutations("Soundfingerprinting\\perms.csv", ",");
Soundfingerprinting.DuplicatesDetector.DataAccess.Repository repository = new Soundfingerprinting.DuplicatesDetector.DataAccess.Repository(permutations);
// Define track
Soundfingerprinting.DuplicatesDetector.Model.Track track
= new Soundfingerprinting.DuplicatesDetector.Model.Track {
Title = name,
Path = filename
};
// Get the HashSignatures
List<Soundfingerprinting.DuplicatesDetector.Model.HashSignature> signatures = repository.GetSignatures(fingerprints, track, 25, 4);
return signatures;
*/
}
public static void SaveFingerprintingDebugImages(string fileName, double[][] logSpectrogram, List<bool[]> fingerprints, FingerprintService fingerprintService, IFingerprintingConfiguration fingerprintConfig) {
ImageService imageService = new ImageService(fingerprintService.SpectrumService, fingerprintService.WaveletService);
int fingerprintsPerRow = 2;
imageService.GetSpectrogramImage(logSpectrogram, logSpectrogram.Length, logSpectrogram[0].Length).Save(fileName + "_spectrogram.png");
imageService.GetWaveletsImages(logSpectrogram, fingerprintConfig.Stride, fingerprintConfig.FingerprintLength, fingerprintConfig.Overlap, fingerprintsPerRow).Save(fileName + "_wavelets.png");
imageService.GetLogSpectralImages(logSpectrogram, fingerprintConfig.Stride, fingerprintConfig.FingerprintLength, fingerprintConfig.Overlap, fingerprintsPerRow).Save(fileName + "_spectrograms.png");
imageService.GetImageForFingerprints(fingerprints, fingerprintConfig.FingerprintLength, fingerprintConfig.LogBins, fingerprintsPerRow).Save(fileName + "_fingerprints.png");
}