diff options
Diffstat (limited to 'xtract/xtract_scalar.h')
| -rw-r--r-- | xtract/xtract_scalar.h | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/xtract/xtract_scalar.h b/xtract/xtract_scalar.h index 46b4549..6ddea98 100644 --- a/xtract/xtract_scalar.h +++ b/xtract/xtract_scalar.h @@ -256,15 +256,15 @@ int xtract_sharpness(float *data, int N, void *argv, float *result); */ int xtract_slope(float *data, int N, void *argv, float *result); -/** \brief Extract the value of the first partial in an input vector +/** \brief Extract the value of the first partial in an input vector that closely matches a certain 'guess' * * \param *data: a pointer to the first element in an array of floats that represents the frequencies of the spectral peaks of an audio vector * \param N: the number of elements to be considered - * \param *argv: a pointer to a float value representing the approximate F0 + * \param *argv: a pointer to a float value representing the guess * \param *result: the F0 of N values from the array pointed to by *data * * This method takes a guess which can come from taking the ZCR of an autocorrelation function, and then finds the spectral peak that most closely matches the gess */ -int xtract_f0(float *data, int N, void *argv, float *result); +int xtract_lowest_match(float *data, int N, void *argv, float *result); /** \brief Extract the Pitch of an input vector using Harmonic Product Spectrum (HPS) analysis * @@ -275,6 +275,15 @@ int xtract_f0(float *data, int N, void *argv, float *result); */ int xtract_hps(float *data, int N, void *argv, float *result); +/** \brief Extract the fundamental frequency of an input vector + * + * \param *data: a pointer to the first element in an array of floats representing an audio vector + * \param N: the number of elements to be considered + * \param *argv: a pointer to NULL + * \param *result: the pitch of N values from the array pointed to by *data + */ +int xtract_f0(float *data, int N, void *argv, float *result); + #ifdef __cplusplus } #endif |