view libs/aubioFullOSXUni/include/aubio/tss.h @ 1:ba2a17cf81bf

first working version of audio file loder. Loads bach clip from the apps->audio-file-loader->bin->data->sounds foler. Three classes: SoundFileLoader does the loading and parsing of thefile with libSndFile. audio samples are kept in AudioFile and analysis of features are kept in AudioAnalysis, at this stage just chromagramm and basic energy

/*
	 Copyright (C) 2003 Paul Brossier

	 This program is free software; you can redistribute it and/or modify
	 it under the terms of the GNU General Public License as published by
	 the Free Software Foundation; either version 2 of the License, or
	 (at your option) any later version.

	 This program is distributed in the hope that it will be useful,
	 but WITHOUT ANY WARRANTY; without even the implied warranty of
	 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	 GNU General Public License for more details.

	 You should have received a copy of the GNU General Public License
	 along with this program; if not, write to the Free Software
	 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	 
*/

/** \file

  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 1­5, Limerick, Ireland, 2001.

*/

#ifndef TSS_H
#define TSS_H

#ifdef __cplusplus
extern "C" {
#endif

/** TSS object */
typedef struct _aubio_tss_t aubio_tss_t;

/** create tss object

  \param thrs separation threshold
  \param alfa alfa parameter
  \param beta beta parameter
  \param size buffer size
  \param overlap step size
  \param channels number of input channels

*/
aubio_tss_t * new_aubio_tss(smpl_t thrs, smpl_t alfa, smpl_t beta, 
    ba_uint_t size, ba_uint_t overlap,ba_uint_t channels);
/** delete tss object

  \param s tss object as returned by new_aubio_tss

*/
void del_aubio_tss(aubio_tss_t *s);

/** set transient / steady state separation threshold 
 
  \param tss tss object as returned by new_aubio_tss
  \param thrs new threshold value

*/
void aubio_tss_set_thres(aubio_tss_t *tss, smpl_t thrs);
/** split input into transient and steady states components
 
  \param s tss object as returned by new_aubio_tss
  \param input input spectral frame
  \param trans output transient components
  \param stead output steady state components

*/
void aubio_tss_do(aubio_tss_t *s, cvec_t * input, cvec_t * trans, cvec_t * stead);

#ifdef __cplusplus
}
#endif

#endif /*TSS_H*/