public void Test_Make_CommonColormaps()
{
(int sampleRate, double[] audio) = WavFile.ReadMono("../../../../../data/cant-do-that-44100.wav");
int fftSize = 1 << 12;
var spec = new Spectrogram(sampleRate, fftSize, stepSize: 700, maxFreq: 2000);
spec.SetWindow(FftSharp.Window.Hanning(fftSize / 3)); // sharper window than typical
spec.Add(audio);
// delete old colormap files
foreach (var filePath in System.IO.Directory.GetFiles("../../../../../dev/graphics/", "hal-*.png"))
{
System.IO.File.Delete(filePath);
}
foreach (var cmap in Colormap.GetColormaps())
{
spec.SetColormap(cmap);
spec.SaveImage($"../../../../../dev/graphics/hal-{cmap.Name}.png", intensity: .5);
Debug.WriteLine($"");
}
}
private void cbColormap_SelectedIndexChanged(object sender, EventArgs e)
{
spec.SetColormap(cmaps[cbColormap.SelectedIndex]);
}