tss.h File Reference

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

Go to the source code of this file.

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 More...
void	del_aubio_tss (aubio_tss_t *o)
	delete tss object More...
void	aubio_tss_do (aubio_tss_t *o, const cvec_t *input, cvec_t *trans, cvec_t *stead)
	split input into transient and steady states components More...
uint_t	aubio_tss_set_threshold (aubio_tss_t *o, smpl_t thrs)
	set transient / steady state separation threshold More...
uint_t	aubio_tss_set_alpha (aubio_tss_t *o, smpl_t alpha)
	set parameter a, defaults to 3 More...
uint_t	aubio_tss_set_beta (aubio_tss_t *o, smpl_t beta)
	set parameter b, defaults to 3 More...

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.

Function Documentation

aubio_tss_do()

void aubio_tss_do	(	aubio_tss_t *	o,
		const 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.

aubio_tss_set_alpha()

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

Examples:

spectral/test-tss.c.

aubio_tss_set_beta()

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

Examples:

spectral/test-tss.c.

aubio_tss_set_threshold()

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

Examples:

spectral/test-tss.c.

del_aubio_tss()

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.

new_aubio_tss()

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.