spectral/tss.h File Reference

Transient / Steady-state Separation (TSS). More...

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Typedefs
typedef struct _aubio_tss_t	aubio_tss_t
	Transient / Steady-state Separation object.
Functions
aubio_tss_t *	new_aubio_tss (uint_t buf_size, uint_t hop_size)
	create tss object
void	del_aubio_tss (aubio_tss_t *o)
	delete tss object
void	aubio_tss_do (aubio_tss_t *o, cvec_t *input, cvec_t *trans, cvec_t *stead)
	split input into transient and steady states components
uint_t	aubio_tss_set_threshold (aubio_tss_t *o, smpl_t thrs)
	set transient / steady state separation threshold
uint_t	aubio_tss_set_alpha (aubio_tss_t *o, smpl_t alpha)
	set parameter a, defaults to 3
uint_t	aubio_tss_set_beta (aubio_tss_t *o, smpl_t beta)
	set parameter b, defaults to 3

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Detailed Description

Transient / Steady-state Separation (TSS).

This file implement a Transient / Steady-state Separation (TSS) as described in:

Christopher Duxbury, Mike E. Davies, and Mark B. Sandler. Separation of transient information in musical audio using multiresolution analysis techniques. In Proceedings of the Digital Audio Effects Conference, DAFx-01, pages 1--5, Limerick, Ireland, 2001.

Available at http://www.csis.ul.ie/dafx01/proceedings/papers/duxbury.pdf

Definition in file tss.h.

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Function Documentation

void aubio_tss_do	(	aubio_tss_t *	o,
		cvec_t *	input,
		cvec_t *	trans,
		cvec_t *	stead
	)

split input into transient and steady states components

Parameters:

	o	tss object as returned by new_aubio_tss()
	input	input spectral frame
	trans	output transient components
	stead	output steady state components

Examples:

spectral/test-tss.c.

uint_t aubio_tss_set_alpha	(	aubio_tss_t *	o,
		smpl_t	alpha
	)

set parameter a, defaults to 3

Parameters:

	o	tss object as returned by new_aubio_tss()
	alpha	new value for alpha parameter

uint_t aubio_tss_set_beta	(	aubio_tss_t *	o,
		smpl_t	beta
	)

set parameter b, defaults to 3

Parameters:

	o	tss object as returned by new_aubio_tss()
	beta	new value for beta parameter

uint_t aubio_tss_set_threshold	(	aubio_tss_t *	o,
		smpl_t	thrs
	)

set transient / steady state separation threshold

Parameters:

	o	tss object as returned by new_aubio_tss()
	thrs	new threshold value

void del_aubio_tss

(

aubio_tss_t *

o

)

delete tss object

Parameters:

o

tss object as returned by new_aubio_tss()

Examples:

spectral/test-tss.c.

aubio_tss_t* new_aubio_tss	(	uint_t	buf_size,
		uint_t	hop_size
	)

create tss object

Parameters:

	buf_size	buffer size
	hop_size	step size

Examples:

spectral/test-tss.c.