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aubio
0.4.8
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Note detection object. More...
Go to the source code of this file.
Typedefs | |
| typedef struct _aubio_notes_t | aubio_notes_t |
| notes detection object | |
Functions | |
| aubio_notes_t * | new_aubio_notes (const char_t *method, uint_t buf_size, uint_t hop_size, uint_t samplerate) |
| create notes detection object More... | |
| void | del_aubio_notes (aubio_notes_t *o) |
| delete notes detection object More... | |
| void | aubio_notes_do (aubio_notes_t *o, const fvec_t *input, fvec_t *output) |
| execute note detection on an input signal frame More... | |
| uint_t | aubio_notes_set_silence (aubio_notes_t *o, smpl_t silence) |
| set notes detection silence threshold More... | |
| smpl_t | aubio_notes_get_silence (const aubio_notes_t *o) |
| get notes detection silence threshold More... | |
| smpl_t | aubio_notes_get_minioi_ms (const aubio_notes_t *o) |
| get notes detection minimum inter-onset interval, in millisecond More... | |
| uint_t | aubio_notes_set_minioi_ms (aubio_notes_t *o, smpl_t minioi_ms) |
| set notes detection minimum inter-onset interval, in millisecond More... | |
| smpl_t | aubio_notes_get_release_drop (const aubio_notes_t *o) |
| get notes object release drop level, in dB More... | |
| uint_t | aubio_notes_set_release_drop (aubio_notes_t *o, smpl_t release_drop) |
| set note release drop level, in dB More... | |
Note detection object.
Definition in file notes.h.
| void aubio_notes_do | ( | aubio_notes_t * | o, |
| const fvec_t * | input, | ||
| fvec_t * | output | ||
| ) |
execute note detection on an input signal frame
| o | note detection object as returned by new_aubio_notes() |
| input | input signal of size [hop_size] |
| output | output notes, fvec of length 3 |
The notes output is a vector of length 3 containing:
| smpl_t aubio_notes_get_minioi_ms | ( | const aubio_notes_t * | o | ) |
get notes detection minimum inter-onset interval, in millisecond
| o | notes detection object as returned by new_aubio_notes() |
| smpl_t aubio_notes_get_release_drop | ( | const aubio_notes_t * | o | ) |
get notes object release drop level, in dB
| o | notes detection object as returned by new_aubio_notes() |
| smpl_t aubio_notes_get_silence | ( | const aubio_notes_t * | o | ) |
get notes detection silence threshold
| o | notes detection object as returned by new_aubio_notes() |
| uint_t aubio_notes_set_minioi_ms | ( | aubio_notes_t * | o, |
| smpl_t | minioi_ms | ||
| ) |
set notes detection minimum inter-onset interval, in millisecond
| o | notes detection object as returned by new_aubio_notes() |
| minioi_ms | new inter-onset interval |
| uint_t aubio_notes_set_release_drop | ( | aubio_notes_t * | o, |
| smpl_t | release_drop | ||
| ) |
set note release drop level, in dB
This function sets the release_drop_level parameter, in dB. When a new note is found, the current level in dB is measured. If the measured level drops under that initial level - release_drop_level, then a note-off will be emitted.
Defaults to 10, in dB.
0.4.8. Results obtained with earlier versions can be reproduced by setting this value to 100, so that note-off will not be played until the next note.| o | notes detection object as returned by new_aubio_notes() |
| release_drop | new release drop level, in dB |
| uint_t aubio_notes_set_silence | ( | aubio_notes_t * | o, |
| smpl_t | silence | ||
| ) |
set notes detection silence threshold
| o | notes detection object as returned by new_aubio_notes() |
| silence | new silence detection threshold |
| void del_aubio_notes | ( | aubio_notes_t * | o | ) |
delete notes detection object
| o | notes detection object to delete |
| aubio_notes_t* new_aubio_notes | ( | const char_t * | method, |
| uint_t | buf_size, | ||
| uint_t | hop_size, | ||
| uint_t | samplerate | ||
| ) |
create notes detection object
| method | notes detection type as specified in specdesc.h |
| buf_size | buffer size for phase vocoder |
| hop_size | hop size for phase vocoder |
| samplerate | sampling rate of the input signal |
1.8.14