/// <summary>
/// Creates a FFT analyzer.
/// </summary>
/// <param name="fft">FFT raw data.</param>
/// <param name="parameters">Specified bin parameters.</param>
/// <param name="real"></param>
public FrequencyBins(FftEventArgs args, BinParameters parameters, bool real = true)
{
_realMode = real;
Complex[] fft = args.Result;
_parameters = parameters;
_relativeFrequency = _parameters.Relative ? real ? _parameters.SamplingRate / 4 : _parameters.SamplingRate / 2 : 0;
_precision = _parameters.SamplingRate / (double)fft.Length;
FillBins(fft, real);
}
public YepppFrequencyBins(BinParameters parameters, int fftLength, bool real)
: base(parameters, fftLength, real)
{
if (parameters.BinsPerPoint > 1)
{
throw new NotSupportedException();
}
//_rArr=new double[fftLength/2];
_iArr = new double[fftLength / 2];
_ln10Value = 1 / Math.Log(10, Math.E);
}
/// <summary>
///
/// </summary>
/// <param name="parameters"></param>
/// <param name="fftLength"></param>
/// <param name="real"></param>
public FastFrequencyBins(BinParameters parameters, int fftLength, bool real)
{
RealMode = real;
Parameters = parameters;
A = Parameters.CalibrationAmplitude * 20;
B = (Parameters.MinimumIntensityDb * (Parameters.CalibrationAmplitude - 1.0)) +
Parameters.CalibrationOffset;
RelativeFrequency = Parameters.Relative ? real ? Parameters.SamplingRate / 4 : Parameters.SamplingRate / 2 : 0;
Precision = Parameters.SamplingRate / (double)fftLength;
var bufferLength = real ? fftLength / 2 : fftLength;
BinsFrequency = new double[bufferLength];
BinsIntensity = new double[bufferLength];
FillFrequencies();
}
/// <summary>
/// Creates a FFT analyzer.
/// </summary>
/// <param name="fft">FFT raw data.</param>
/// <param name="parameters">Specified bin parameters.</param>
/// <param name="real"></param>
public FastFrequencyBins(FftEventArgs args, BinParameters parameters, bool real = true)
: this(parameters, args.Result.Length, real)
{
Update(args);
}
public ApproximateFrequencyBins(BinParameters parameters, int fftLength, bool real)
: base(parameters, fftLength, real)
{
}
public ApproximateFrequencyBins(FftEventArgs args, BinParameters parameters, bool real = true)
: base(args, parameters, real)
{
}