Marsyas
0.6.0-alpha
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Compute the complex spectrum of input window. More...
#include <Spectrum.h>
Inherits MarSystem.
Public Member Functions | |
MarSystem * | clone () const |
void | myProcess (realvec &in, realvec &out) |
Processes data. | |
Spectrum (std::string name) | |
Spectrum (const Spectrum &) | |
~Spectrum () |
Compute the complex spectrum of input window.
Computes the complex spectrum (N/2+1 points) of the input window using the Fast Fourier Transform (FFT). The output is a N-sized column vector (where N is the size of the input audio vector), using the following format:
[Re(0), Re(N/2), Re(1), Im(1), Re(2), Im(2), ..., Re(N/2-1), Im(N/2-1)]
Note that the DC and Nyquist frequencies only have real part, and are output as the two first coefficients in the vector. Overall, the output spectrum has N/2+1 unique points, corresponding to the positive half of the complex spectrum.
Definition at line 50 of file Spectrum.h.
Spectrum | ( | std::string | name | ) |
Definition at line 34 of file Spectrum.cpp.
Definition at line 51 of file Spectrum.cpp.
~Spectrum | ( | ) |
Definition at line 47 of file Spectrum.cpp.
Implements MarSystem.
Definition at line 75 of file Spectrum.cpp.
Processes data.
in | Input data to read. |
out | Output data to write. |
Implement this method in subclass to define specific data processing.
Implements MarSystem.
Definition at line 150 of file Spectrum.cpp.