#include <onsetsds.h>
Collaboration diagram for OnsetsDS:
Data Fields | |
| float * | data |
| float * | psp |
| Peak Spectral Profile - size is numbins+2, data is stored in order dc through to nyquist. | |
| float * | odfvals |
| float * | sortbuf |
| float * | other |
| OdsPolarBuf * | curr |
| float | srate |
| The sampling rate of the input audio. Set by onsetsds_init(). | |
| float | relaxtime |
| Do NOT set this directly. Use onsetsds_setrelax() which will also update relaxcoef. | |
| float | relaxcoef |
| Relaxation coefficient (memory coefficient). See also onsetsds_setrelax(). | |
| float | floor |
| float | odfparam |
| float | normfactor |
| Value used internally to scale ODF value according to the FFT frame size. Automatically set by onsetsds_init(). | |
| float | odfvalpost |
| float | odfvalpostprev |
| float | thresh |
| int | odftype |
| Choose from onsetsds_odf_types. | |
| int | whtype |
| Choose from onsetsds_wh_types. | |
| int | fftformat |
| Choose from onsetsds_fft_types. | |
| bool | whiten |
| Whether to apply whitening - onsetsds_init() decides this on your behalf. | |
| bool | detected |
| Output val - true if onset detected in curr frame. | |
| bool | logmags |
| bool | med_odd |
| Whether median span is odd or not (used internally). | |
| unsigned int | medspan |
| Number of frames used in median calculation. | |
| unsigned int | mingap |
| Size of enforced gap between detections, measured in FFT frames. | |
| unsigned int | gapleft |
| size_t | fftsize |
| size_t | numbins |
| float* OnsetsDS::data |
"data" is a pointer to the memory that must be EXTERNALLY allocated. Other pointers will point to locations within this memory.
| float * OnsetsDS::psp |
Peak Spectral Profile - size is numbins+2, data is stored in order dc through to nyquist.
| float * OnsetsDS::odfvals |
| float * OnsetsDS::sortbuf |
| float * OnsetsDS::other |
| float OnsetsDS::srate |
The sampling rate of the input audio. Set by onsetsds_init().
| float OnsetsDS::relaxtime |
Do NOT set this directly. Use onsetsds_setrelax() which will also update relaxcoef.
| float OnsetsDS::relaxcoef |
Relaxation coefficient (memory coefficient). See also onsetsds_setrelax().
| float OnsetsDS::floor |
floor - the lowest value that a PSP magnitude can take.
| float OnsetsDS::odfparam |
A parameter for the ODF. For most this is a magnitude threshold for a single bin to be considered; but for ODS_ODF_MKL it is the "epsilon" parameter.
| float OnsetsDS::normfactor |
Value used internally to scale ODF value according to the FFT frame size. Automatically set by onsetsds_init().
| float OnsetsDS::odfvalpost |
| float OnsetsDS::odfvalpostprev |
| float OnsetsDS::thresh |
Threshold (of ODF value, after median processing) for detection. Values between 0 and 1 are expected, but outside this range may sometimes be appropriate too.
Choose from onsetsds_odf_types.
| int OnsetsDS::whtype |
Choose from onsetsds_wh_types.
Choose from onsetsds_fft_types.
| bool OnsetsDS::whiten |
Whether to apply whitening - onsetsds_init() decides this on your behalf.
| bool OnsetsDS::detected |
Output val - true if onset detected in curr frame.
| bool OnsetsDS::logmags |
NOT YET USED: Whether to convert magnitudes to log domain before processing. This is done as follows: Magnitudes below a log-lower-limit threshold (ODS_LOG_LOWER_LIMIT) are pushed up to that threshold (to avoid log(0) infinity problems), then the log is taken. The values are re-scaled to a similar range as the linear-domain values (assumed to lie between zero and approximately one) by subtracting log(ODS_LOG_LOWER_LIMIT) and then dividing by abs(log(ODS_LOG_LOWER_LIMIT)).
| bool OnsetsDS::med_odd |
Whether median span is odd or not (used internally).
| unsigned int OnsetsDS::medspan |
Number of frames used in median calculation.
| unsigned int OnsetsDS::mingap |
Size of enforced gap between detections, measured in FFT frames.
| unsigned int OnsetsDS::gapleft |
| size_t OnsetsDS::fftsize |
| size_t OnsetsDS::numbins |