public void TestOfSpectralIndices_ICD20()
{
//var indexPropertiesConfig = PathHelper.ResolveConfigFile(@"IndexPropertiesConfig.yml");
var sourceRecording = PathHelper.ResolveAsset(@"Recordings\BAC2_20071008-085040.wav");
var configFile = PathHelper.ResolveConfigFile(@"Towsey.Acoustic.yml");
// var outputDir = this.outputDirectory;
// Create temp directory to store output
if (!this.outputDirectory.Exists)
{
this.outputDirectory.Create();
}
var recording = new AudioRecording(sourceRecording);
// CHANGE CONFIG PARAMETERS HERE IF REQUIRED
var indexCalculateConfig = ConfigFile.Deserialize <IndexCalculateConfig>(configFile);
indexCalculateConfig.IndexCalculationDurationTimeSpan = TimeSpan.FromSeconds(20);
var results = IndexCalculate.Analysis(
recording,
TimeSpan.FromSeconds(40), // assume that this is the third of three 20 second subsegments
indexCalculateConfig.IndexProperties,
22050,
TimeSpan.Zero,
indexCalculateConfig,
returnSonogramInfo: true);
var spectralIndices = results.SpectralIndexValues;
// TEST the SPECTRAL INDICES
var resourcesDir = PathHelper.ResolveAssetPath("Indices");
var expectedSpectrumFile = new FileInfo(resourcesDir + "\\BGN_ICD20.bin");
//Binary.Serialize(expectedSpectrumFile, spectralIndices.BGN);
var expectedVector = Binary.Deserialize <double[]>(expectedSpectrumFile);
CollectionAssert.That.AreEqual(expectedVector, spectralIndices.BGN, AllowedDelta);
expectedSpectrumFile = new FileInfo(resourcesDir + "\\CVR_ICD20.bin");
//Binary.Serialize(expectedSpectrumFile, spectralIndices.CVR);
expectedVector = Binary.Deserialize <double[]>(expectedSpectrumFile);
CollectionAssert.That.AreEqual(expectedVector, spectralIndices.CVR, AllowedDelta);
var outputImagePath1 = Path.Combine(this.outputDirectory.FullName, "SpectralIndices_ICD20.png");
var image = SpectralIndexValues.CreateImageOfSpectralIndices(spectralIndices);
image.Save(outputImagePath1);
}
public void TestOfSpectralIndices_Octave()
{
// create a two-minute artificial recording containing five harmonics.
int sampleRate = 64000;
double duration = 120; // signal duration in seconds
int[] harmonics = { 500, 1000, 2000, 4000, 8000 };
var recording = DspFilters.GenerateTestRecording(sampleRate, duration, harmonics, WaveType.Sine);
// cut out one minute from 30 - 90 seconds and incorporate into AudioRecording
int startSample = sampleRate * 30; // start two minutes into recording
int subsegmentSampleCount = sampleRate * 60; // get 60 seconds
double[] subsamples = DataTools.Subarray(recording.WavReader.Samples, startSample, subsegmentSampleCount);
var wr = new Acoustics.Tools.Wav.WavReader(subsamples, 1, 16, sampleRate);
var subsegmentRecording = new AudioRecording(wr);
//var indexPropertiesConfig = PathHelper.ResolveConfigFile(@"IndexPropertiesConfig.yml");
var configFile = PathHelper.ResolveConfigFile(@"Towsey.Acoustic.yml");
// Create temp directory to store output
if (!this.outputDirectory.Exists)
{
this.outputDirectory.Create();
}
// CHANGE CONFIG PARAMETERS HERE IF REQUIRED
var indexCalculateConfig = ConfigFile.Deserialize <IndexCalculateConfig>(configFile);
indexCalculateConfig.FrequencyScale = FreqScaleType.Octave;
var freqScale = new FrequencyScale(indexCalculateConfig.FrequencyScale);
indexCalculateConfig.FrameLength = freqScale.WindowSize;
var results = IndexCalculate.Analysis(
subsegmentRecording,
TimeSpan.Zero,
indexCalculateConfig.IndexProperties,
sampleRate,
TimeSpan.Zero,
indexCalculateConfig,
returnSonogramInfo: true);
var spectralIndices = results.SpectralIndexValues;
// draw the output image of all spectral indices
var outputImagePath1 = Path.Combine(this.outputDirectory.FullName, "SpectralIndices_Octave.png");
var image = SpectralIndexValues.CreateImageOfSpectralIndices(spectralIndices);
image.Save(outputImagePath1);
// TEST the BGN SPECTRAL INDEX
Assert.AreEqual(256, spectralIndices.BGN.Length);
var resourcesDir = PathHelper.ResolveAssetPath("Indices");
var expectedSpectrumFile = new FileInfo(resourcesDir + "\\BGN_OctaveScale.bin");
//Binary.Serialize(expectedSpectrumFile, spectralIndices.BGN);
var expectedVector = Binary.Deserialize <double[]>(expectedSpectrumFile);
CollectionAssert.That.AreEqual(expectedVector, spectralIndices.BGN, AllowedDelta);
expectedSpectrumFile = new FileInfo(resourcesDir + "\\CVR_OctaveScale.bin");
//Binary.Serialize(expectedSpectrumFile, spectralIndices.CVR);
expectedVector = Binary.Deserialize <double[]>(expectedSpectrumFile);
CollectionAssert.That.AreEqual(expectedVector, spectralIndices.CVR, AllowedDelta);
}
public void TestOfSpectralIndices()
{
//var indexPropertiesConfig = PathHelper.ResolveConfigFile(@"IndexPropertiesConfig.yml");
var sourceRecording = PathHelper.ResolveAsset(@"Recordings\BAC2_20071008-085040.wav");
var configFile = PathHelper.ResolveConfigFile(@"Towsey.Acoustic.yml");
// var outputDir = this.outputDirectory;
var resourcesDir = PathHelper.ResolveAssetPath("Indices");
if (!this.outputDirectory.Exists)
{
this.outputDirectory.Create();
}
var indexCalculateConfig = ConfigFile.Deserialize <IndexCalculateConfig>(configFile);
// CHANGE CONFIG PARAMETERS HERE IF REQUIRED
//indexCalculateConfig.IndexCalculationDuration = TimeSpan.FromSeconds(20);
//indexCalculateConfig.SetTypeOfFreqScale("Octave");
var results = IndexCalculate.Analysis(
new AudioRecording(sourceRecording),
TimeSpan.Zero,
indexCalculateConfig.IndexProperties,
22050,
TimeSpan.Zero,
indexCalculateConfig,
returnSonogramInfo: true);
var spectralIndices = results.SpectralIndexValues;
// TEST the SPECTRAL INDICES
// After serializing the expected vector and writing to the resources directory, comment the Binary.Serialise line.
// 1:ACI
var expectedSpectrumFile = new FileInfo(resourcesDir + "\\ACI.bin");
//Binary.Serialize(expectedSpectrumFile, spectralIndices.ACI);
var expectedVector = Binary.Deserialize <double[]>(expectedSpectrumFile);
CollectionAssert.That.AreEqual(expectedVector, spectralIndices.ACI, AllowedDelta);
// 2:BGN
expectedSpectrumFile = new FileInfo(resourcesDir + "\\BGN.bin");
// Binary.Serialize(expectedSpectrumFile, spectralIndices.BGN);
expectedVector = Binary.Deserialize <double[]>(expectedSpectrumFile);
CollectionAssert.That.AreEqual(expectedVector, spectralIndices.BGN, AllowedDelta);
// 3:CVR
expectedSpectrumFile = new FileInfo(resourcesDir + "\\CVR.bin");
// Binary.Serialize(expectedSpectrumFile, spectralIndices.CVR);
expectedVector = Binary.Deserialize <double[]>(expectedSpectrumFile);
CollectionAssert.That.AreEqual(expectedVector, spectralIndices.CVR, AllowedDelta);
// 4:ENT
expectedSpectrumFile = new FileInfo(resourcesDir + "\\ENT.bin");
// Binary.Serialize(expectedSpectrumFile, spectralIndices.ENT);
expectedVector = Binary.Deserialize <double[]>(expectedSpectrumFile);
CollectionAssert.That.AreEqual(expectedVector, spectralIndices.ENT, AllowedDelta);
// 5:EVN
expectedSpectrumFile = new FileInfo(resourcesDir + "\\EVN.bin");
// Binary.Serialize(expectedSpectrumFile, spectralIndices.EVN);
expectedVector = Binary.Deserialize <double[]>(expectedSpectrumFile);
CollectionAssert.That.AreEqual(expectedVector, spectralIndices.EVN, AllowedDelta);
// 6:OSC
expectedSpectrumFile = new FileInfo(resourcesDir + "\\OSC.bin");
//Binary.Serialize(expectedSpectrumFile, spectralIndices.OSC);
expectedVector = Binary.Deserialize <double[]>(expectedSpectrumFile);
CollectionAssert.That.AreEqual(expectedVector, spectralIndices.OSC, AllowedDelta);
// 7:PMN
expectedSpectrumFile = new FileInfo(resourcesDir + "\\PMN.bin");
// Binary.Serialize(expectedSpectrumFile, spectralIndices.PMN);
expectedVector = Binary.Deserialize <double[]>(expectedSpectrumFile);
CollectionAssert.That.AreEqual(expectedVector, spectralIndices.PMN, AllowedDelta);
// 8:RHZ
expectedSpectrumFile = new FileInfo(resourcesDir + "\\RHZ.bin");
// Binary.Serialize(expectedSpectrumFile, spectralIndices.RHZ);
expectedVector = Binary.Deserialize <double[]>(expectedSpectrumFile);
CollectionAssert.That.AreEqual(expectedVector, spectralIndices.RHZ, AllowedDelta);
// 9:RNG
expectedSpectrumFile = new FileInfo(resourcesDir + "\\RNG.bin");
// Binary.Serialize(expectedSpectrumFile, spectralIndices.RNG);
expectedVector = Binary.Deserialize <double[]>(expectedSpectrumFile);
CollectionAssert.That.AreEqual(expectedVector, spectralIndices.RNG, AllowedDelta);
// 10:RPS
expectedSpectrumFile = new FileInfo(resourcesDir + "\\RPS.bin");
// Binary.Serialize(expectedSpectrumFile, spectralIndices.RPS);
expectedVector = Binary.Deserialize <double[]>(expectedSpectrumFile);
CollectionAssert.That.AreEqual(expectedVector, spectralIndices.RPS, AllowedDelta);
// 11:RVT
expectedSpectrumFile = new FileInfo(resourcesDir + "\\RVT.bin");
// Binary.Serialize(expectedSpectrumFile, spectralIndices.RVT);
expectedVector = Binary.Deserialize <double[]>(expectedSpectrumFile);
CollectionAssert.That.AreEqual(expectedVector, spectralIndices.RVT, AllowedDelta);
// 12:SPT
expectedSpectrumFile = new FileInfo(resourcesDir + "\\SPT.bin");
// Binary.Serialize(expectedSpectrumFile, spectralIndices.SPT);
expectedVector = Binary.Deserialize <double[]>(expectedSpectrumFile);
CollectionAssert.That.AreEqual(expectedVector, spectralIndices.SPT, AllowedDelta);
var outputImagePath = Path.Combine(this.outputDirectory.FullName, "SpectralIndices.png");
var image = SpectralIndexValues.CreateImageOfSpectralIndices(spectralIndices);
image.Save(outputImagePath);
}