/usr/src/packages/BUILD/libxtract-0.6.2/xtract/xtract_vector.h File Reference

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Functions

int xtract_spectrum (const float *data, const int N, const void *argv, float *result)
 Extract frequency domain spectrum from time domain signal.
int xtract_autocorrelation_fft (const float *data, const int N, const void *argv, float *result)
 Extract autocorrelation from time domain signal using FFT based method.
int xtract_mfcc (const float *data, const int N, const void *argv, float *result)
 Extract Mel Frequency Cepstral Coefficients based on a method described by Rabiner.
int xtract_dct (const float *data, const int N, const void *argv, float *result)
 Extract the Discrete Cosine transform of a time domain signal.
int xtract_autocorrelation (const float *data, const int N, const void *argv, float *result)
 Extract autocorrelation from time domain signal using time-domain autocorrelation technique.
int xtract_amdf (const float *data, const int N, const void *argv, float *result)
 Extract Average Magnitude Difference Function from time domain signal.
int xtract_asdf (const float *data, const int N, const void *argv, float *result)
 Extract Average Squared Difference Function from time domain signal.
int xtract_bark_coefficients (const float *data, const int N, const void *argv, float *result)
 Extract Bark band coefficients based on a method.
int xtract_peak_spectrum (const float *data, const int N, const void *argv, float *result)
 Extract the amplitude and frequency of spectral peaks from a magnitude spectrum.
int xtract_harmonic_spectrum (const float *data, const int N, const void *argv, float *result)
 Extract the harmonic spectrum of from a of a peak spectrum.
int xtract_lpc (const float *data, const int N, const void *argv, float *result)
 Extract Linear Predictive Coding Coefficients.
int xtract_lpcc (const float *data, const int N, const void *argv, float *result)
 Extract Linear Predictive Coding Cepstral Coefficients.
int xtract_subbands (const float *data, const int N, const void *argv, float *result)
 Extract subbands from a spectrum.


Detailed Description

: declares functions that extract a feature as a vector from an input vector

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