public void GetNaturalBreaks_3SecondsWithTwoFixedShortInternalLowsMaxSegment2200Milliseconds_ReturnsTwoInternalBreaksAndOneAtEnd()
{
const int totalSamples = 6000;
var duration = TimeSpan.FromSeconds(3);
_sampleProvider.SetSamples(totalSamples, 1, 0.999f, 0.999f, s =>
{
s[1999] = 0;
s[2000] = 0;
s[2001] = 0;
s[3999] = 0;
s[4000] = 0;
s[4001] = 0;
});
_sampleProvider.TotalTime = duration;
_settings.Setup(s => s.AutoSegmenterPreferrerdPauseLengthInMilliseconds).Returns(10);
_settings.Setup(s => s.AutoSegmenterMaximumSegmentLengthInMilliseconds).Returns(2200);
var segmenter = new AutoSegmenter(_sampleProvider, _settings.Object);
var breaks = segmenter.GetNaturalBreaks().ToArray();
Assert.AreEqual(2, breaks.Length);
Assert.AreEqual(TimeSpan.FromSeconds(2), breaks[0]);
Assert.AreEqual(TimeSpan.FromSeconds(3), breaks[1]);
}
public void GetNaturalBreaks_ZeroSamples_ReturnsEmptyEnumeration()
{
_sampleProvider.SetSamples(0, 1, 0, 0, null);
var segmenter = new AutoSegmenter(_sampleProvider, _settings.Object);
Assert.AreEqual(0, segmenter.GetNaturalBreaks().Count());
}
/// ------------------------------------------------------------------------------------
private void HandleGetStartedButtonClick(object sender, EventArgs e)
{
_buttonGetStarted.Enabled = false;
ExternalProcess.CleanUpAllProcesses();
string newAnnotationFile = null;
if (_radioButtonManual.Checked)
{
Settings.Default.DefaultSegmentationMethod = 0;
newAnnotationFile = ManualSegmenterDlg.ShowDialog(_file, this, -1);
}
else if (_radioButtonCarefulSpeech.Checked)
{
Settings.Default.DefaultSegmentationMethod = 1;
newAnnotationFile = (!AudioUtils.GetCanRecordAudio()) ? null :
_file.RecordAnnotations(FindForm(), AudioRecordingType.Careful);
}
else if (_radioButtonElan.Checked)
{
var caption = LocalizationManager.GetString(
"DialogBoxes.Transcription.CreateAnnotationFileDlg.LoadSegmentFileDlgCaption", "Select Segment File");
var filetype = LocalizationManager.GetString(
"DialogBoxes.Transcription.CreateAnnotationFileDlg.ElanFileTypeString",
"ELAN File (*.eaf)|*.eaf");
newAnnotationFile = GetAudacityOrElanFile(caption, filetype);
Settings.Default.DefaultSegmentationMethod = 2;
}
else if (_radioButtonAudacity.Checked)
{
var caption = LocalizationManager.GetString(
"DialogBoxes.Transcription.CreateAnnotationFileDlg.AudacityLabelOpenFileDlg.Caption",
"Select Audacity Label File");
var filetype = LocalizationManager.GetString(
"DialogBoxes.Transcription.CreateAnnotationFileDlg.AudacityLabelOpenFileDlg.FileTypeString",
"Audacity Label File (*.txt)|*.txt");
newAnnotationFile = GetAudacityOrElanFile(caption, filetype);
Settings.Default.DefaultSegmentationMethod = 3;
}
else if (_radioButtonAutoSegmenter.Checked)
{
var segmenter = new AutoSegmenter(_file, _project);
newAnnotationFile = segmenter.Run();
Settings.Default.DefaultSegmentationMethod = 4;
}
if (newAnnotationFile != null && ComponentFileListRefreshAction != null)
{
ComponentFileListRefreshAction(newAnnotationFile, null);
}
_buttonGetStarted.Enabled = true;
}
public void GetNaturalBreaks_ShortWavFileWith1000IdenticalNonZeroSamples_ReturnsSingleBreakAtEnd()
{
_sampleProvider.SetSamples(1000, 1, 0.999f, 0.999f, null);
var duration = TimeSpan.FromSeconds(3);
_sampleProvider.TotalTime = duration;
_settings.Setup(s => s.AutoSegmenterMaximumSegmentLengthInMilliseconds).Returns(6000);
var segmenter = new AutoSegmenter(_sampleProvider, _settings.Object);
var breaks = segmenter.GetNaturalBreaks().ToList();
Assert.AreEqual(1, breaks.Count());
Assert.AreEqual(duration, breaks[0]);
}
public void GetNaturalBreaks_12SecondsWithTwoVariableMultiSampleInternalLows_ReturnsTwoInternalBreaksAndOneAtEnd()
{
const int totalSamples = 12000;
var duration = TimeSpan.FromSeconds(12);
_sampleProvider.SetSamples(totalSamples, 1, 0.999f, 0.2f, s =>
{
s[4995] = 0.001f;
s[4996] = 0.09f;
s[4997] = 0.03f;
s[4998] = 0.02f;
s[4999] = 0.009f;
s[5000] = 0.08f;
s[5001] = 0.15f;
s[5002] = 0.09f;
s[5003] = 0.04f;
s[5004] = 0.007f;
s[5005] = 0.03f;
s[8995] = 0.003f;
s[8996] = 0.07f;
s[8997] = 0.04f;
s[8998] = 0.08f;
s[8999] = 0.09f;
s[9000] = 0.01f;
s[9001] = 0.01f;
s[9002] = 0.09f;
s[9003] = 0.009f;
s[9004] = 0.007f;
s[9005] = 0.006f;
});
_sampleProvider.TotalTime = duration;
_settings.Setup(s => s.AutoSegmenterPreferrerdPauseLengthInMilliseconds).Returns(10);
_settings.Setup(s => s.AutoSegmenterMaximumSegmentLengthInMilliseconds).Returns(6000);
var segmenter = new AutoSegmenter(_sampleProvider, _settings.Object);
var breaks = segmenter.GetNaturalBreaks().ToArray();
Assert.AreEqual(3, breaks.Length);
Assert.IsTrue(TimeSpan.FromMilliseconds(4998) <= breaks[0]);
Assert.IsTrue(TimeSpan.FromMilliseconds(5002) >= breaks[0]);
Assert.IsTrue(TimeSpan.FromMilliseconds(8998) <= breaks[1]);
Assert.IsTrue(TimeSpan.FromMilliseconds(9002) >= breaks[1]);
Assert.AreEqual(TimeSpan.FromSeconds(12), breaks[2]);
}
public void GetNaturalBreaks_12SecondsMultiChannelWithFixedMultiSampleLowsEvery500MillisecondsMaxSegment6Seconds_ReturnsThreeInternalBreaksAndOneAtEnd()
{
const int totalSamples = 6000;
var duration = TimeSpan.FromSeconds(12);
_sampleProvider.SetSamples(totalSamples, 2, 0.999f, 0.999f, s =>
{
for (int i = 0; i < 22; i++)
{
s[i] = 0;
}
for (int b = 1; b < 23; b++)
{
for (int i = 0; i < 22; i++)
{
s[b * 500 - 10 + i] = 0;
s[b * 500 - 10 + i] = 0;
}
}
for (int i = 11980; i < 12000; i++)
{
s[i] = 0;
}
});
_sampleProvider.TotalTime = duration;
_settings.Setup(s => s.AutoSegmenterMaximumSegmentLengthInMilliseconds).Returns(6000);
var segmenter = new AutoSegmenter(_sampleProvider, _settings.Object);
var breaks = segmenter.GetNaturalBreaks().ToArray();
Assert.AreEqual(3, breaks.Length, "Breaks are expected roughly halfway between the min and max segment lengths, not at every pause");
Assert.IsTrue(TimeSpan.FromMilliseconds(3498) <= breaks[0]);
Assert.IsTrue(TimeSpan.FromMilliseconds(3502) >= breaks[0]);
Assert.IsTrue(TimeSpan.FromMilliseconds(6998) <= breaks[1]);
Assert.IsTrue(TimeSpan.FromMilliseconds(7002) >= breaks[1]);
Assert.IsTrue(TimeSpan.FromMilliseconds(11998) <= breaks[2]);
Assert.IsTrue(TimeSpan.FromMilliseconds(12002) >= breaks[2]);
}
