wavetable.h File Reference

Wavetable synthesis. More...

Go to the source code of this file.

Typedefs
typedef struct _aubio_wavetable_t	aubio_wavetable_t
	wavetable object

Functions
aubio_wavetable_t *	new_aubio_wavetable (uint_t samplerate, uint_t hop_size)
	create new wavetable object More...
uint_t	aubio_wavetable_load (aubio_wavetable_t *o, const char_t *uri)
	load source in wavetable More...
void	aubio_wavetable_do (aubio_wavetable_t *o, const fvec_t *input, fvec_t *output)
	process wavetable function More...
void	aubio_wavetable_do_multi (aubio_wavetable_t *o, const fmat_t *input, fmat_t *output)
	process wavetable function, multiple channels More...
uint_t	aubio_wavetable_get_playing (const aubio_wavetable_t *o)
	get current playing state More...
uint_t	aubio_wavetable_set_playing (aubio_wavetable_t *o, uint_t playing)
	set current playing state More...
uint_t	aubio_wavetable_play (aubio_wavetable_t *o)
	play sample from start More...
uint_t	aubio_wavetable_stop (aubio_wavetable_t *o)
	stop wavetable More...
uint_t	aubio_wavetable_set_freq (aubio_wavetable_t *o, smpl_t freq)
	set wavetable frequency More...
smpl_t	aubio_wavetable_get_freq (const aubio_wavetable_t *o)
	get wavetable frequency More...
uint_t	aubio_wavetable_set_amp (aubio_wavetable_t *o, smpl_t amp)
	set wavetable amplitude More...
smpl_t	aubio_wavetable_get_amp (const aubio_wavetable_t *o)
	get wavetable amplitude More...
void	del_aubio_wavetable (aubio_wavetable_t *o)
	destroy aubio_wavetable_t object More...

Detailed Description

Wavetable synthesis.

This file creates a wavetable and plays it at different frequency.

The _do function adds the new samples to the input, and write the result as the output.

Definition in file wavetable.h.

Function Documentation

aubio_wavetable_do()

void aubio_wavetable_do	(	aubio_wavetable_t *	o,
		const fvec_t *	input,
		fvec_t *	output
	)

process wavetable function

Parameters

o	wavetable, created by new_aubio_wavetable()
input	input of the wavetable, to be added to the output
output	output of the wavetable

This function adds the new samples from the playing wavetable to the output.

If input is not NULL and different from output, then the samples from input are added to the output.

Examples:

examples/aubioonset.c, examples/aubiopitch.c, examples/aubiotrack.c, and synth/test-wavetable.c.

aubio_wavetable_do_multi()

void aubio_wavetable_do_multi	(	aubio_wavetable_t *	o,
		const fmat_t *	input,
		fmat_t *	output
	)

process wavetable function, multiple channels

Parameters

o	wavetable, created by new_aubio_wavetable()
input	input of the wavetable, to be added to the output
output	output of the wavetable

This function adds the new samples from the playing wavetable to the output.

If input is not NULL and different from output, then the samples from input are added to the output.

aubio_wavetable_get_amp()

smpl_t aubio_wavetable_get_amp

(

const aubio_wavetable_t *

o

)

get wavetable amplitude

Parameters

o	wavetable, created by new_aubio_wavetable()

Returns

current amplitude

aubio_wavetable_get_freq()

smpl_t aubio_wavetable_get_freq

(

const aubio_wavetable_t *

o

)

get wavetable frequency

Parameters

o	wavetable, created by new_aubio_wavetable()

Returns

current frequency, in Hz

aubio_wavetable_get_playing()

uint_t aubio_wavetable_get_playing

(

const aubio_wavetable_t *

o

)

get current playing state

Parameters

o	wavetable, created by new_aubio_wavetable()

Returns

0 if not playing, 1 if playing

aubio_wavetable_load()

uint_t aubio_wavetable_load	(	aubio_wavetable_t *	o,
		const char_t *	uri
	)

load source in wavetable

TODO: This function is not implemented yet. See new_aubio_sampler() instead.

Parameters

o	wavetable, created by new_aubio_wavetable()
uri	the uri of the source to load

Returns

0 if successful, non-zero otherwise

aubio_wavetable_play()

uint_t aubio_wavetable_play

(

aubio_wavetable_t *

o

)

play sample from start

Parameters

o	wavetable, created by new_aubio_wavetable()

Returns

0 if successful, 1 otherwise

Examples:

examples/aubioonset.c, examples/aubiopitch.c, examples/aubiotrack.c, and synth/test-wavetable.c.

aubio_wavetable_set_amp()

uint_t aubio_wavetable_set_amp	(	aubio_wavetable_t *	o,
		smpl_t	amp
	)

set wavetable amplitude

Parameters

o	wavetable, created by new_aubio_wavetable()
amp	new amplitude value for the wavetable

Returns

0 if successful, 1 otherwise

Examples:

examples/aubiopitch.c.

aubio_wavetable_set_freq()

uint_t aubio_wavetable_set_freq	(	aubio_wavetable_t *	o,
		smpl_t	freq
	)

set wavetable frequency

Parameters

o	wavetable, created by new_aubio_wavetable()
freq	new frequency value for the wavetable

Returns

0 if successful, 1 otherwise

Examples:

examples/aubioonset.c, examples/aubiopitch.c, examples/aubiotrack.c, and synth/test-wavetable.c.

aubio_wavetable_set_playing()

uint_t aubio_wavetable_set_playing	(	aubio_wavetable_t *	o,
		uint_t	playing
	)

set current playing state

Parameters

o	wavetable, created by new_aubio_wavetable()
playing	0 for not playing, 1 for playing

Returns

0 if successful, 1 otherwise

aubio_wavetable_stop()

uint_t aubio_wavetable_stop

(

aubio_wavetable_t *

o

)

stop wavetable

Parameters

o	wavetable, created by new_aubio_wavetable()

Returns

0 if successful, 1 otherwise

Examples:

examples/aubioonset.c, examples/aubiotrack.c, and synth/test-wavetable.c.

del_aubio_wavetable()

void del_aubio_wavetable

(

aubio_wavetable_t *

o

)

destroy aubio_wavetable_t object

Parameters

o	wavetable, created by new_aubio_wavetable()

Examples:

examples/aubioonset.c, examples/aubiopitch.c, examples/aubiotrack.c, and synth/test-wavetable.c.

new_aubio_wavetable()

aubio_wavetable_t* new_aubio_wavetable	(	uint_t	samplerate,
		uint_t	hop_size
	)

create new wavetable object

Parameters

samplerate	the sampling rate of the new wavetable
hop_size	the block size of the new wavetable

Returns

the newly created aubio_wavetable_t

Examples:

examples/aubioonset.c, examples/aubiopitch.c, examples/aubiotrack.c, and synth/test-wavetable.c.