public static void Process(double[] data, IEqualizer eq, uint sampleRate)
{
wave_lib2.FFT2 f = new FFT2(data.Length / 2);
f.transform(data, false);
int j;
uint l_freq = 0xFFFFFFFF;
double _amp = 0;
uint tmp = 0;
for (j = 0; j < (int)(data.Length / 2); j++)
{
tmp = (uint)(((double)j) / data.Length * sampleRate);
if (tmp != l_freq)
{
l_freq = tmp;
_amp = eq.GetPoint(tmp);
}
data[j] *= _amp;// eq.GetPoint();
}
for (j = data.Length / 2; j < data.Length; j++)
{
data[j] = 0.0;
}
double mult = 1;
// multiply transforms to get convolution
for (j = 0; j != data.Length; j += 2)
{
double a = data[j] - data[j + 1];
double b = data[j] + data[j + 1];
data[j] = a * mult;
data[j + 1] = b * mult;
//mult += 0.001;
}
f.transform(data, true);
}
public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
{
PointCollection points = new PointCollection();
if ((values.Length != 4) || (parameter == DependencyProperty.UnsetValue) ||
(values[0] == null) || (values[0] == DependencyProperty.UnsetValue) ||
(values[1] == null) || (values[1] == DependencyProperty.UnsetValue) || //HACK DarthAffe 13.08.2017: I need this only to update the binding
(values[2] == null) || (values[2] == DependencyProperty.UnsetValue) ||
(values[3] == null) || (values[3] == DependencyProperty.UnsetValue))
{
return(points);
}
IEqualizer equalizer = (IEqualizer)values[0];
double width = (double)values[2];
double height = (double)values[3];
int valueCount = int.Parse(parameter.ToString());
double halfHeight = height / 2.0;
List <(float offset, float value)> pointValues = equalizer.Bands.Select(b => (b.Offset, b.Value)).ToList();
float[] calculatedValues = equalizer.CalculateValues(valueCount);
for (int i = 0; i < calculatedValues.Length; i++)
{
pointValues.Add(((float)i / calculatedValues.Length, calculatedValues[i]));
}
foreach ((float offset, float value) in pointValues.OrderBy(x => x.offset))
{
points.Add(new Point(offset * width, GetPosY(value, halfHeight)));
}
return(points);
}
public void SaveFrom(IEqualizer equalizer)
{
IsEnabled = equalizer.IsEnabled;
Bands.Clear();
foreach (EqualizerBand band in equalizer.Bands)
{
Bands.Add(new EqualizerBand(band.Offset, band.Value, band.IsFixedOffset));
}
}
public stream_cb(int buf_size)
{
_eq = new lowpass_eq();
d = this.cb;
/*eq = WaveOut.create_equalizer(channels, sampleRate, bitsPerSample, buf_size);
* WaveOut.equalizer_set_freq(eq, 0, 0.5F);
* WaveOut.equalizer_set_freq(eq, 1, 0.5F);
* WaveOut.equalizer_set_freq(eq, 2, 0.5F);
* WaveOut.equalizer_set_freq(eq, 3, 0.5F);
* WaveOut.equalizer_set_freq(eq, 4, 0.5F);
* WaveOut.equalizer_set_freq(eq, 5, 0.2F);
* WaveOut.equalizer_set_freq(eq, 6, 0F);
* WaveOut.equalizer_set_freq(eq, 7, -0.2F);
* WaveOut.equalizer_set_freq(eq, 8, -0.2F);
* WaveOut.equalizer_set_freq(eq, 9, -0.5F);
* WaveOut.equalizer_set_freq(eq, 10, -0.5F);
* WaveOut.equalizer_set_freq(eq, 11, -0.5F);*/
}
public void LoadInto(IEqualizer equalizer)
{
equalizer.IsEnabled = IsEnabled;
foreach (EqualizerBand band in Bands)
{
if (band.IsFixedOffset)
{
EqualizerBand bandToUpdate = equalizer.Bands.FirstOrDefault(b => b.IsFixedOffset && (Math.Abs(b.Offset - band.Offset) < 0.01));
if (bandToUpdate != null)
{
bandToUpdate.Value = band.Value;
}
}
else
{
equalizer.AddBand(band.Offset, band.Value);
}
}
}
public static void GetNoise(double[] data, IEqualizer eq, uint sampleRate)
{
wave_lib2.FFT2 f = new FFT2(data.Length / 2);
//f.transform(data, false);
int j;
uint l_freq = 0xFFFFFFFF;
double _amp = 0;
uint tmp = 0;
for (j = 0; j < (int)(data.Length / 2); j++)
{
tmp = (uint)(((double)j) / data.Length * sampleRate);
if (tmp != l_freq)
{
l_freq = tmp;
_amp = eq.GetPoint(tmp);
}
data[j] = _amp; // eq.GetPoint();
}
for (j = data.Length / 2; j < data.Length; j++)
{
data[j] = 0.0;
}
double mult = 1;
// multiply transforms to get convolution
for (j = 0; j != data.Length; j += 2)
{
double a = data[j] - data[j + 1];
double b = data[j] + data[j + 1];
data[j] = a * mult;
data[j + 1] = b * mult;
//mult += 0.001;
}
f.transform(data, true);
}
public stream_cb(int buf_size)
{
_eq = new lowpass_eq ();
d = this.cb;
/*eq = WaveOut.create_equalizer(channels, sampleRate, bitsPerSample, buf_size);
WaveOut.equalizer_set_freq(eq, 0, 0.5F);
WaveOut.equalizer_set_freq(eq, 1, 0.5F);
WaveOut.equalizer_set_freq(eq, 2, 0.5F);
WaveOut.equalizer_set_freq(eq, 3, 0.5F);
WaveOut.equalizer_set_freq(eq, 4, 0.5F);
WaveOut.equalizer_set_freq(eq, 5, 0.2F);
WaveOut.equalizer_set_freq(eq, 6, 0F);
WaveOut.equalizer_set_freq(eq, 7, -0.2F);
WaveOut.equalizer_set_freq(eq, 8, -0.2F);
WaveOut.equalizer_set_freq(eq, 9, -0.5F);
WaveOut.equalizer_set_freq(eq, 10, -0.5F);
WaveOut.equalizer_set_freq(eq, 11, -0.5F);*/
}