public void LinearFrequencyScale()
{
var recordingPath = PathHelper.ResolveAsset("Recordings", "BAC2_20071008-085040.wav");
var opFileStem = "BAC2_20071008";
var outputDir = this.outputDirectory;
var outputImagePath = Path.Combine(outputDir.FullName, "LinearScaleSonogram.png");
var recording = new AudioRecording(recordingPath);
// specfied linear scale
int nyquist = 11025;
int frameSize = 1024;
int hertzInterval = 1000;
var freqScale = new FrequencyScale(nyquist, frameSize, hertzInterval);
var fst = freqScale.ScaleType;
var sonoConfig = new SonogramConfig
{
WindowSize = freqScale.FinalBinCount * 2,
WindowOverlap = 0.2,
SourceFName = recording.BaseName,
NoiseReductionType = NoiseReductionType.None,
NoiseReductionParameter = 0.0,
};
var sonogram = new SpectrogramStandard(sonoConfig, recording.WavReader);
// DO NOISE REDUCTION
var dataMatrix = SNR.NoiseReduce_Standard(sonogram.Data);
sonogram.Data = dataMatrix;
sonogram.Configuration.WindowSize = freqScale.WindowSize;
var image = sonogram.GetImageFullyAnnotated(sonogram.GetImage(), "SPECTROGRAM: " + fst.ToString(), freqScale.GridLineLocations);
image.Save(outputImagePath, ImageFormat.Png);
// DO FILE EQUALITY TEST
var stemOfExpectedFile = opFileStem + "_LinearScaleGridLineLocations.EXPECTED.json";
var stemOfActualFile = opFileStem + "_LinearScaleGridLineLocations.ACTUAL.json";
// Check that freqScale.GridLineLocations are correct
var expectedFile1 = PathHelper.ResolveAsset("FrequencyScale\\" + stemOfExpectedFile);
if (!expectedFile1.Exists)
{
LoggedConsole.WriteErrorLine("An EXPECTED results file does not exist. Test will fail!");
LoggedConsole.WriteErrorLine(
$"If ACTUAL results file is correct, move it to dir `{PathHelper.TestResources}` and change its suffix to <.EXPECTED.json>");
}
var resultFile1 = new FileInfo(Path.Combine(outputDir.FullName, stemOfActualFile));
Json.Serialise(resultFile1, freqScale.GridLineLocations);
FileEqualityHelpers.TextFileEqual(expectedFile1, resultFile1);
// Check that image dimensions are correct
Assert.AreEqual(566, image.Height);
Assert.AreEqual(1621, image.Width);
}
public void LinearFrequencyScaleDefault()
{
// relative path because post-Build command transfers files to ...\\Work\GitHub\...\bin\Debug subfolder.
var recordingPath = @"Recordings\BAC2_20071008-085040.wav";
var opFileStem = "BAC2_20071008";
var outputDir = this.outputDirectory;
var outputImagePath = Path.Combine(outputDir.FullName, "DefaultLinearScaleSonogram.png");
var recording = new AudioRecording(recordingPath);
// default linear scale
var fst = FreqScaleType.Linear;
var freqScale = new FrequencyScale(fst);
var sonoConfig = new SonogramConfig
{
WindowSize = freqScale.FinalBinCount * 2,
WindowOverlap = 0.2,
SourceFName = recording.BaseName,
NoiseReductionType = NoiseReductionType.None,
NoiseReductionParameter = 0.0,
};
var sonogram = new SpectrogramStandard(sonoConfig, recording.WavReader);
sonogram.Configuration.WindowSize = freqScale.WindowSize;
// DO NOISE REDUCTION
var dataMatrix = SNR.NoiseReduce_Standard(sonogram.Data);
sonogram.Data = dataMatrix;
var image = sonogram.GetImageFullyAnnotated(sonogram.GetImage(), "SPECTROGRAM: " + fst.ToString(), freqScale.GridLineLocations);
image.Save(outputImagePath, ImageFormat.Png);
// DO UNIT TESTING
var stemOfExpectedFile = opFileStem + "_DefaultLinearScaleGridLineLocations.EXPECTED.json";
var stemOfActualFile = opFileStem + "_DefaultLinearScaleGridLineLocations.ACTUAL.json";
// Check that freqScale.GridLineLocations are correct
var expectedFile1 = new FileInfo("FrequencyScale\\" + stemOfExpectedFile);
if (!expectedFile1.Exists)
{
LoggedConsole.WriteErrorLine("An EXPECTED results file does not exist. Test will fail!");
LoggedConsole.WriteErrorLine("If ACTUAL results file is correct, move it to dir <...\\TestResources\\FrequencyScale> and change its suffix to <.EXPECTED.json>");
}
var resultFile1 = new FileInfo(Path.Combine(outputDir.FullName, stemOfActualFile));
Json.Serialise(resultFile1, freqScale.GridLineLocations);
FileEqualityHelpers.TextFileEqual(expectedFile1, resultFile1);
// Check that image dimensions are correct
Assert.AreEqual(310, image.Height);
Assert.AreEqual(3247, image.Width);
}
public void OctaveFrequencyScale2()
{
var recordingPath = PathHelper.ResolveAsset(@"Recordings\MarineJasco_AMAR119-00000139.00000139.Chan_1-24bps.1375012796.2013-07-28-11-59-56-16bit-60sec.wav");
var opFileStem = "JascoMarineGBR1";
var outputDir = this.outputDirectory;
var outputImagePath = Path.Combine(this.outputDirectory.FullName, "Octave2ScaleSonogram.png");
var recording = new AudioRecording(recordingPath);
var fst = FreqScaleType.Linear125Octaves7Tones28Nyquist32000;
var freqScale = new FrequencyScale(fst);
var sonoConfig = new SonogramConfig
{
WindowSize = freqScale.WindowSize,
WindowOverlap = 0.2,
SourceFName = recording.BaseName,
NoiseReductionType = NoiseReductionType.None,
NoiseReductionParameter = 0.0,
};
var sonogram = new AmplitudeSonogram(sonoConfig, recording.WavReader);
sonogram.Data = OctaveFreqScale.ConvertAmplitudeSpectrogramToDecibelOctaveScale(sonogram.Data, freqScale);
// DO NOISE REDUCTION
var dataMatrix = SNR.NoiseReduce_Standard(sonogram.Data);
sonogram.Data = dataMatrix;
sonogram.Configuration.WindowSize = freqScale.WindowSize;
var image = sonogram.GetImageFullyAnnotated(sonogram.GetImage(), "SPECTROGRAM: " + fst.ToString(), freqScale.GridLineLocations);
image.Save(outputImagePath, ImageFormat.Png);
// DO FILE EQUALITY TESTS
// Check that freqScale.OctaveBinBounds are correct
var stemOfExpectedFile = opFileStem + "_Octave2ScaleBinBounds.EXPECTED.json";
var stemOfActualFile = opFileStem + "_Octave2ScaleBinBounds.ACTUAL.json";
var expectedFile1 = PathHelper.ResolveAsset("FrequencyScale\\" + stemOfExpectedFile);
if (!expectedFile1.Exists)
{
LoggedConsole.WriteErrorLine("An EXPECTED results file does not exist. Test will fail!");
LoggedConsole.WriteErrorLine(
$"If ACTUAL results file is correct, move it to dir `{PathHelper.TestResources}` and change its suffix to <.EXPECTED.json>");
}
var resultFile1 = new FileInfo(Path.Combine(outputDir.FullName, stemOfActualFile));
Json.Serialise(resultFile1, freqScale.BinBounds);
FileEqualityHelpers.TextFileEqual(expectedFile1, resultFile1);
// Check that freqScale.GridLineLocations are correct
stemOfExpectedFile = opFileStem + "_Octave2ScaleGridLineLocations.EXPECTED.json";
stemOfActualFile = opFileStem + "_Octave2ScaleGridLineLocations.ACTUAL.json";
var expectedFile2 = PathHelper.ResolveAsset("FrequencyScale\\" + stemOfExpectedFile);
if (!expectedFile2.Exists)
{
LoggedConsole.WriteErrorLine("An EXPECTED results file does not exist. Test will fail!");
LoggedConsole.WriteErrorLine(
$"If ACTUAL results file is correct, move it to dir `{PathHelper.TestResources}` and change its suffix to <.EXPECTED.json>");
}
var resultFile2 = new FileInfo(Path.Combine(outputDir.FullName, stemOfActualFile));
Json.Serialise(resultFile2, freqScale.GridLineLocations);
FileEqualityHelpers.TextFileEqual(expectedFile2, resultFile2);
// Check that image dimensions are correct
Assert.AreEqual(201, image.Width);
Assert.AreEqual(310, image.Height);
}
public void OctaveFrequencyScale1()
{
var recordingPath = PathHelper.ResolveAsset("Recordings", "BAC2_20071008-085040.wav");
var opFileStem = "BAC2_20071008";
var outputDir = this.outputDirectory;
var outputImagePath = Path.Combine(outputDir.FullName, "Octave1ScaleSonogram.png");
var recording = new AudioRecording(recordingPath);
// default octave scale
var fst = FreqScaleType.Linear125Octaves6Tones30Nyquist11025;
var freqScale = new FrequencyScale(fst);
var sonoConfig = new SonogramConfig
{
WindowSize = freqScale.WindowSize,
WindowOverlap = 0.75,
SourceFName = recording.BaseName,
NoiseReductionType = NoiseReductionType.None,
NoiseReductionParameter = 0.0,
};
// Generate amplitude sonogram and then conver to octave scale
var sonogram = new AmplitudeSonogram(sonoConfig, recording.WavReader);
// THIS IS THE CRITICAL LINE. COULD DO WITH SEPARATE UNIT TEST
sonogram.Data = OctaveFreqScale.ConvertAmplitudeSpectrogramToDecibelOctaveScale(sonogram.Data, freqScale);
// DO NOISE REDUCTION
var dataMatrix = SNR.NoiseReduce_Standard(sonogram.Data);
sonogram.Data = dataMatrix;
sonogram.Configuration.WindowSize = freqScale.WindowSize;
var image = sonogram.GetImageFullyAnnotated(sonogram.GetImage(), "SPECTROGRAM: " + fst.ToString(), freqScale.GridLineLocations);
image.Save(outputImagePath, ImageFormat.Png);
// DO FILE EQUALITY TESTS
// Check that freqScale.OctaveBinBounds are correct
var stemOfExpectedFile = opFileStem + "_Octave1ScaleBinBounds.EXPECTED.json";
var stemOfActualFile = opFileStem + "_Octave1ScaleBinBounds.ACTUAL.json";
var expectedFile1 = PathHelper.ResolveAsset("FrequencyScale\\" + stemOfExpectedFile);
if (!expectedFile1.Exists)
{
LoggedConsole.WriteErrorLine("An EXPECTED results file does not exist. Test will fail!");
LoggedConsole.WriteErrorLine(
$"If ACTUAL results file is correct, move it to dir `{PathHelper.TestResources}` and change its suffix to <.EXPECTED.json>");
}
var resultFile1 = new FileInfo(Path.Combine(outputDir.FullName, stemOfActualFile));
Json.Serialise(resultFile1, freqScale.BinBounds);
FileEqualityHelpers.TextFileEqual(expectedFile1, resultFile1);
// Check that freqScale.GridLineLocations are correct
stemOfExpectedFile = opFileStem + "_Octave1ScaleGridLineLocations.EXPECTED.json";
stemOfActualFile = opFileStem + "_Octave1ScaleGridLineLocations.ACTUAL.json";
var expectedFile2 = PathHelper.ResolveAsset("FrequencyScale\\" + stemOfExpectedFile);
if (!expectedFile2.Exists)
{
LoggedConsole.WriteErrorLine("An EXPECTED results file does not exist. Test will fail!");
LoggedConsole.WriteErrorLine(
$"If ACTUAL results file is correct, move it to dir `{PathHelper.TestResources}` and change its suffix to <.EXPECTED.json>");
}
var resultFile2 = new FileInfo(Path.Combine(outputDir.FullName, stemOfActualFile));
Json.Serialise(resultFile2, freqScale.GridLineLocations);
FileEqualityHelpers.TextFileEqual(expectedFile2, resultFile2);
// Check that image dimensions are correct
Assert.AreEqual(645, image.Width);
Assert.AreEqual(310, image.Height);
}