diff options
Diffstat (limited to 'examples/simpletest/simpletest.cpp')
| -rw-r--r-- | examples/simpletest/simpletest.cpp | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/examples/simpletest/simpletest.cpp b/examples/simpletest/simpletest.cpp index 40bcfeb..a0ae8d4 100644 --- a/examples/simpletest/simpletest.cpp +++ b/examples/simpletest/simpletest.cpp @@ -31,6 +31,7 @@ #include "xtract/libxtract.h" #include "xtract/xtract_stateful.h" #include "xtract/xtract_scalar.h" +#include "xtract/xtract_helper.h" #include "WaveFile.h" #ifndef M_PI @@ -50,7 +51,7 @@ waveform_type; #define BLOCKSIZE 512 #define MAVG_COUNT 10 -#define HALF_BLOCKSIZE BLOCKSIZE >> 1 +#define HALF_BLOCKSIZE (BLOCKSIZE >> 1) #define SAMPLERATE 44100 #define PERIOD 102 #define MFCC_FREQ_BANDS 13 @@ -202,7 +203,6 @@ int main(void) xtract_free_fft(); xtract[XTRACT_SPECTRAL_CENTROID](spectrum, BLOCKSIZE, NULL, ¢roid); -// printf("\nSpectral Centroid: %f\t", centroid); argd[1] = 10.0; /* peak threshold as % of maximum peak */ xtract[XTRACT_PEAK_SPECTRUM](spectrum, BLOCKSIZE / 2, argd, peaks); @@ -250,6 +250,13 @@ int main(void) xtract_features_from_subframes(subframes_windowed, BLOCKSIZE, XTRACT_SPECTRUM, argd, subframes_spectrum); xtract_free_fft(); + argd[0] = 0.5; /* smoothing factor */ + + /* smooth the amplitude components of the first and second spectra */ + xtract_smoothed(subframes_spectrum, HALF_BLOCKSIZE >> 1, argd, subframes_spectrum); + xtract_smoothed(subframes_spectrum + HALF_BLOCKSIZE, HALF_BLOCKSIZE >> 1, argd, subframes_spectrum + HALF_BLOCKSIZE); + + /* difference between the two spectra */ xtract_difference_vector(subframes_spectrum, BLOCKSIZE, NULL, difference); argd[0] = .25; /* norm order */ |