Changes in / [1da7e08:c721874]


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  • src/aubio_priv.h

    r1da7e08 rc721874  
    11/*
    2          Copyright (C) 2003 Paul Brossier
     2   Copyright (C) 2003-2007 Paul Brossier
    33
    4         This program is free software; you can redistribute it and/or modify
    5         it under the terms of the GNU General Public License as published by
    6         the Free Software Foundation; either version 2 of the License, or
    7         (at your option) any later version.
     4  This program is free software; you can redistribute it and/or modify
     5  it under the terms of the GNU General Public License as published by
     6  the Free Software Foundation; either version 2 of the License, or
     7  (at your option) any later version.
    88
    9         This program is distributed in the hope that it will be useful,
    10         but WITHOUT ANY WARRANTY; without even the implied warranty of
    11         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    12         GNU General Public License for more details.
     9  This program is distributed in the hope that it will be useful,
     10  but WITHOUT ANY WARRANTY; without even the implied warranty of
     11  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     12  GNU General Public License for more details.
    1313
    14         You should have received a copy of the GNU General Public License
    15         along with this program; if not, write to the Free Software
    16         Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
    17        
     14  You should have received a copy of the GNU General Public License
     15  along with this program; if not, write to the Free Software
     16  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
     17 
    1818*/
    1919
    … …  
    7171
    7272/* Memory management */
    73 #define AUBIO_MALLOC(_n)                malloc(_n)
    74 #define AUBIO_REALLOC(_p,_n)            realloc(_p,_n)
    75 #define AUBIO_NEW(_t)                   (_t*)malloc(sizeof(_t))
    76 #define AUBIO_ARRAY(_t,_n)              (_t*)malloc((_n)*sizeof(_t))
    77 #define AUBIO_MEMCPY(_dst,_src,_n)      memcpy(_dst,_src,_n)
    78 #define AUBIO_MEMSET(_dst,_src,_t)      memset(_dst,_src,_t)
    79 #define AUBIO_FREE(_p)                  free(_p)       
     73#define AUBIO_MALLOC(_n)             malloc(_n)
     74#define AUBIO_REALLOC(_p,_n)         realloc(_p,_n)
     75#define AUBIO_NEW(_t)                (_t*)malloc(sizeof(_t))
     76#define AUBIO_ARRAY(_t,_n)           (_t*)malloc((_n)*sizeof(_t))
     77#define AUBIO_MEMCPY(_dst,_src,_n)   memcpy(_dst,_src,_n)
     78#define AUBIO_MEMSET(_dst,_src,_t)   memset(_dst,_src,_t)
     79#define AUBIO_FREE(_p)               free(_p)
    8080
    8181

  • src/fft.c

    r1da7e08 rc721874  
    2424
    2525#if FFTW3F_SUPPORT
    26 #define fftw_malloc             fftwf_malloc
    27 #define fftw_free               fftwf_free
    28 #define fftw_execute            fftwf_execute
    29 #define fftw_plan_dft_r2c_1d    fftwf_plan_dft_r2c_1d
    30 #define fftw_plan_dft_c2r_1d    fftwf_plan_dft_c2r_1d
    31 #define fftw_plan_r2r_1d      fftwf_plan_r2r_1d
    32 #define fftw_plan               fftwf_plan
    33 #define fftw_destroy_plan       fftwf_destroy_plan
     26#define fftw_malloc            fftwf_malloc
     27#define fftw_free              fftwf_free
     28#define fftw_execute           fftwf_execute
     29#define fftw_plan_dft_r2c_1d   fftwf_plan_dft_r2c_1d
     30#define fftw_plan_dft_c2r_1d   fftwf_plan_dft_c2r_1d
     31#define fftw_plan_r2r_1d       fftwf_plan_r2r_1d
     32#define fftw_plan              fftwf_plan
     33#define fftw_destroy_plan      fftwf_destroy_plan
    3434#endif
    3535
    … …  
    4141
    4242struct _aubio_fft_t {
    43         uint_t fft_size;
    44         uint_t channels;
    45         real_t          *in, *out;
    46         fft_data_t      *specdata;
    47         fftw_plan       pfw, pbw;
     43  uint_t fft_size;
     44  uint_t channels;
     45  real_t    *in, *out;
     46  fft_data_t   *specdata;
     47  fftw_plan   pfw, pbw;
    4848};
    4949
    … …  
    5151
    5252aubio_fft_t * new_aubio_fft(uint_t size) {
    53         aubio_fft_t * s = AUBIO_NEW(aubio_fft_t);
    54         /* allocate memory */
    55         s->in       = AUBIO_ARRAY(real_t,size);
    56         s->out      = AUBIO_ARRAY(real_t,size);
    57         s->specdata = (fft_data_t*)fftw_malloc(sizeof(fft_data_t)*size);
    58         /* create plans */
     53  aubio_fft_t * s = AUBIO_NEW(aubio_fft_t);
     54  /* allocate memory */
     55  s->in       = AUBIO_ARRAY(real_t,size);
     56  s->out      = AUBIO_ARRAY(real_t,size);
     57  /* create plans */
    5958#ifdef HAVE_COMPLEX_H
    60         s->pfw = fftw_plan_dft_r2c_1d(size, s->in,  s->specdata, FFTW_ESTIMATE);
    61         s->pbw = fftw_plan_dft_c2r_1d(size, s->specdata, s->out, FFTW_ESTIMATE);
     59  s->fft_size = size/2+1;
     60  s->specdata = (fft_data_t*)fftw_malloc(sizeof(fft_data_t)*s->fft_size);
     61  s->pfw = fftw_plan_dft_r2c_1d(size, s->in,  s->specdata, FFTW_ESTIMATE);
     62  s->pbw = fftw_plan_dft_c2r_1d(size, s->specdata, s->out, FFTW_ESTIMATE);
    6263#else
    63         s->pfw = fftw_plan_r2r_1d(size, s->in,  s->specdata, FFTW_R2HC, FFTW_ESTIMATE);
    64         s->pbw = fftw_plan_r2r_1d(size, s->specdata, s->out, FFTW_HC2R, FFTW_ESTIMATE);
     64  s->fft_size = size;
     65  s->specdata = (fft_data_t*)fftw_malloc(sizeof(fft_data_t)*s->fft_size);
     66  s->pfw = fftw_plan_r2r_1d(size, s->in,  s->specdata, FFTW_R2HC, FFTW_ESTIMATE);
     67  s->pbw = fftw_plan_r2r_1d(size, s->specdata, s->out, FFTW_HC2R, FFTW_ESTIMATE);
    6568#endif
    66         return s;
     69  return s;
    6770}
    6871
    6972void del_aubio_fft(aubio_fft_t * s) {
    70         /* destroy data */
    71         fftw_destroy_plan(s->pfw);
    72         fftw_destroy_plan(s->pbw);
    73         fftw_free(s->specdata);
    74         AUBIO_FREE(s->out);
    75         AUBIO_FREE(s->in );
    76         AUBIO_FREE(s);
     73  /* destroy data */
     74  fftw_destroy_plan(s->pfw);
     75  fftw_destroy_plan(s->pbw);
     76  fftw_free(s->specdata);
     77  AUBIO_FREE(s->out);
     78  AUBIO_FREE(s->in );
     79  AUBIO_FREE(s);
    7780}
    7881
    7982void aubio_fft_do(const aubio_fft_t * s,
    80                 const smpl_t * data, fft_data_t * spectrum,
    81                 const uint_t size) {
    82         uint_t i;
    83         for (i=0;i<size;i++) s->in[i] = data[i];
    84         fftw_execute(s->pfw);
    85         for (i=0;i<size;i++) spectrum[i] = s->specdata[i];
     83    const smpl_t * data, fft_data_t * spectrum, const uint_t size) {
     84  uint_t i;
     85  for (i=0;i<size;i++) s->in[i] = data[i];
     86  fftw_execute(s->pfw);
     87  for (i=0; i < s->fft_size; i++) spectrum[i] = s->specdata[i];
    8688}
    8789
    8890void aubio_fft_rdo(const aubio_fft_t * s,
    89                 const fft_data_t * spectrum,
    90                 smpl_t * data,
    91                 const uint_t size) {
    92         uint_t i;
    93         const smpl_t renorm = 1./(smpl_t)size;
    94         for (i=0;i<size;i++) s->specdata[i] = spectrum[i];
    95         fftw_execute(s->pbw);
    96         for (i=0;i<size;i++) data[i] = s->out[i]*renorm;
     91    const fft_data_t * spectrum, smpl_t * data, const uint_t size) {
     92  uint_t i;
     93  const smpl_t renorm = 1./(smpl_t)size;
     94  for (i=0; i < s->fft_size; i++) s->specdata[i] = spectrum[i];
     95  fftw_execute(s->pbw);
     96  for (i=0;i<size;i++) data[i] = s->out[i]*renorm;
    9797}
    9898
    … …  
    100100
    101101void aubio_fft_getnorm(smpl_t * norm, fft_data_t * spectrum, uint_t size) {
    102         uint_t i;
    103         for (i=0;i<size/2+1;i++) norm[i] = ABSC(spectrum[i]);
    104         //for (i=0;i<size/2+1;i++) AUBIO_DBG("%f\n", norm[i]);
     102  uint_t i;
     103  for (i=0;i<size/2+1;i++) norm[i] = ABSC(spectrum[i]);
    105104}
    106105
    107106void aubio_fft_getphas(smpl_t * phas, fft_data_t * spectrum, uint_t size) {
    108         uint_t i;
    109         for (i=0;i<size/2+1;i++) phas[i] = ARGC(spectrum[i]);
    110         //for (i=0;i<size/2+1;i++) AUBIO_DBG("%f\n", phas[i]);
     107  uint_t i;
     108  for (i=0;i<size/2+1;i++) phas[i] = ARGC(spectrum[i]);
    111109}
    112110
    … …  
    122120
    123121void aubio_fft_getnorm(smpl_t * norm, fft_data_t * spectrum, uint_t size) {
    124         uint_t i;
    125   norm[0] = -spectrum[0];
    126         for (i=1;i<size/2+1;i++) norm[i] = SQRT(SQR(spectrum[i]) + SQR(spectrum[size-i]));
    127         //for (i=0;i<size/2+1;i++) AUBIO_DBG("%f\n", norm[i]);
     122  uint_t i;
     123  norm[0] = SQR(spectrum[0]);
     124  for (i=1;i<size/2;i++) norm[i] = (SQR(spectrum[i]) + SQR(spectrum[size-i]));
     125  norm[size/2] = SQR(spectrum[size/2]);
    128126}
    129127
    130128void aubio_fft_getphas(smpl_t * phas, fft_data_t * spectrum, uint_t size) {
    131         uint_t i;
    132   phas[0] = PI;
    133         for (i=1;i<size/2+1;i++) phas[i] = atan2f(spectrum[size-i] , spectrum[i]);
    134         //for (i=0;i<size/2+1;i++) AUBIO_DBG("%f\n", phas[i]);
     129  uint_t i;
     130  phas[0] = 0;
     131  for (i=1;i<size/2+1;i++) phas[i] = atan2f(spectrum[size-i] , spectrum[i]);
     132  phas[size/2] = 0;
    135133}
    136134
    … …  
    156154
    157155aubio_mfft_t * new_aubio_mfft(uint_t winsize, uint_t channels){
    158         uint_t i;
    159         aubio_mfft_t * fft = AUBIO_NEW(aubio_mfft_t);
    160         fft->winsize       = winsize;
    161         fft->channels      = channels;
    162         fft->fft           = new_aubio_fft(winsize);
    163         fft->spec          = AUBIO_ARRAY(fft_data_t*,channels);
    164         for (i=0; i < channels; i++)
    165                 fft->spec[i] = AUBIO_ARRAY(fft_data_t,winsize);
    166         return fft;
     156  uint_t i;
     157  aubio_mfft_t * fft = AUBIO_NEW(aubio_mfft_t);
     158  fft->winsize       = winsize;
     159  fft->channels      = channels;
     160  fft->fft           = new_aubio_fft(winsize);
     161  fft->spec          = AUBIO_ARRAY(fft_data_t*,channels);
     162  for (i=0; i < channels; i++)
     163    fft->spec[i] = AUBIO_ARRAY(fft_data_t,winsize);
     164  return fft;
    167165}
    168166
    169167/* execute stft */
    170168void aubio_mfft_do (aubio_mfft_t * fft,fvec_t * in,cvec_t * fftgrain){
    171         uint_t i=0;
    172         /* execute stft */
    173         for (i=0; i < fft->channels; i++) {
    174                 aubio_fft_do (fft->fft,in->data[i],fft->spec[i],fft->winsize);
    175                 /* put norm and phase into fftgrain */
    176                 aubio_fft_getnorm(fftgrain->norm[i], fft->spec[i], fft->winsize);
    177                 aubio_fft_getphas(fftgrain->phas[i], fft->spec[i], fft->winsize);
    178         }
     169  uint_t i=0;
     170  /* execute stft */
     171  for (i=0; i < fft->channels; i++) {
     172    aubio_fft_do (fft->fft,in->data[i],fft->spec[i],fft->winsize);
     173    /* put norm and phase into fftgrain */
     174    aubio_fft_getnorm(fftgrain->norm[i], fft->spec[i], fft->winsize);
     175    aubio_fft_getphas(fftgrain->phas[i], fft->spec[i], fft->winsize);
     176  }
    179177}
    180178
    181179/* execute inverse fourier transform */
    182180void aubio_mfft_rdo(aubio_mfft_t * fft,cvec_t * fftgrain, fvec_t * out){
    183         uint_t i=0;
    184         for (i=0; i < fft->channels; i++) {
    185                 aubio_fft_getspectrum(fft->spec[i],fftgrain->norm[i],fftgrain->phas[i],fft->winsize);
    186                 aubio_fft_rdo(fft->fft,fft->spec[i],out->data[i],fft->winsize);
    187         }
     181  uint_t i=0;
     182  for (i=0; i < fft->channels; i++) {
     183    aubio_fft_getspectrum(fft->spec[i],fftgrain->norm[i],fftgrain->phas[i],fft->winsize);
     184    aubio_fft_rdo(fft->fft,fft->spec[i],out->data[i],fft->winsize);
     185  }
    188186}
    189187
    190188void del_aubio_mfft(aubio_mfft_t * fft) {
    191         uint_t i;
    192         for (i=0; i < fft->channels; i++)
    193                 AUBIO_FREE(fft->spec[i]);
    194         AUBIO_FREE(fft->spec);
    195         del_aubio_fft(fft->fft);
    196         AUBIO_FREE(fft);       
     189  uint_t i;
     190  for (i=0; i < fft->channels; i++)
     191    AUBIO_FREE(fft->spec[i]);
     192  AUBIO_FREE(fft->spec);
     193  del_aubio_fft(fft->fft);
     194  AUBIO_FREE(fft);       
    197195}

  • src/fft.h

    r1da7e08 rc721874  
    11/*
    2         Copyright (C) 2003 Paul Brossier
     2  Copyright (C) 2003 Paul Brossier
    33
    4         This program is free software; you can redistribute it and/or modify
    5         it under the terms of the GNU General Public License as published by
    6         the Free Software Foundation; either version 2 of the License, or
    7         (at your option) any later version.
     4  This program is free software; you can redistribute it and/or modify
     5  it under the terms of the GNU General Public License as published by
     6  the Free Software Foundation; either version 2 of the License, or
     7  (at your option) any later version.
    88
    9         This program is distributed in the hope that it will be useful,
    10         but WITHOUT ANY WARRANTY; without even the implied warranty of
    11         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    12         GNU General Public License for more details.
     9  This program is distributed in the hope that it will be useful,
     10  but WITHOUT ANY WARRANTY; without even the implied warranty of
     11  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     12  GNU General Public License for more details.
    1313
    14         You should have received a copy of the GNU General Public License
    15         along with this program; if not, write to the Free Software
    16         Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
    17        
     14  You should have received a copy of the GNU General Public License
     15  along with this program; if not, write to the Free Software
     16  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
     17 
    1818*/
    1919

  • src/phasevoc.c

    r1da7e08 rc721874  
    2626/** phasevocoder internal object */
    2727struct _aubio_pvoc_t {
    28         /** grain length */
    29         uint_t win_s;
    30         /** overlap step */
    31         uint_t hop_s;
    32         /** number of channels */
    33         uint_t channels;
    34         /** spectral data */
    35         aubio_mfft_t * fft;
    36         /**cur output grain             [win_s] */
    37         fvec_t * synth;         
    38         /**last input frame             [win_s-hop_s] */
    39         fvec_t * synthold;
    40         /**current input grain          [win_s] */
    41         fvec_t * data;           
    42         /**last input frame             [win_s-hop_s] */
    43         fvec_t * dataold; 
    44         /** grain window                [win_s] */
    45         float * w;
     28  uint_t win_s;       /** grain length */
     29  uint_t hop_s;       /** overlap step */
     30  uint_t channels;    /** number of channels */
     31  aubio_mfft_t * fft; /** spectral data */
     32  fvec_t * synth;     /**cur output grain [win_s] */
     33  fvec_t * synthold;  /**last input frame [win_s-hop_s] */
     34  fvec_t * data;      /**current input grain [win_s] */
     35  fvec_t * dataold;   /**last input frame [win_s-hop_s] */
     36  smpl_t * w;          /** grain window [win_s] */
    4637};
    4738
    4839
    4940/** returns data and dataold slided by hop_s */
    50 static void aubio_pvoc_swapbuffers(
    51                 smpl_t * data,
    52                 smpl_t * dataold,
    53                 const smpl_t * datanew,
    54                 uint_t win_s, uint_t hop_s);
     41static void aubio_pvoc_swapbuffers(smpl_t * data, smpl_t * dataold, const
     42    smpl_t * datanew, uint_t win_s, uint_t hop_s);
     43
    5544/** do additive synthesis from 'old' and 'cur' */
    56 static void aubio_pvoc_addsynth(
    57                 const smpl_t * synth,
    58                 smpl_t * synthold,
    59                 smpl_t * synthnew,
    60                 uint_t win_s, uint_t hop_s);
    61 
     45static void aubio_pvoc_addsynth(const smpl_t * synth, smpl_t * synthold,
     46    smpl_t * synthnew, uint_t win_s, uint_t hop_s);
    6247
    6348void aubio_pvoc_do(aubio_pvoc_t *pv, fvec_t * datanew, cvec_t *fftgrain) {
    64         uint_t i,j;
    65         for (i=0; i<pv->channels; i++) {
    66                 /* slide  */
    67                 aubio_pvoc_swapbuffers(pv->data->data[i],pv->dataold->data[i],
    68                                 datanew->data[i],pv->win_s,pv->hop_s);
    69                 /* windowing */
    70                 for (j=0; j<pv->win_s; j++) pv->data->data[i][j] *= pv->w[j];
    71         }
    72         /* shift */
    73         vec_shift(pv->data);
    74         /* calculate fft */
    75         aubio_mfft_do (pv->fft,pv->data,fftgrain);
     49  uint_t i,j;
     50  for (i=0; i<pv->channels; i++) {
     51    /* slide  */
     52    aubio_pvoc_swapbuffers(pv->data->data[i],pv->dataold->data[i],
     53        datanew->data[i],pv->win_s,pv->hop_s);
     54    /* windowing */
     55    for (j=0; j<pv->win_s; j++) pv->data->data[i][j] *= pv->w[j];
     56  }
     57  /* shift */
     58  vec_shift(pv->data);
     59  /* calculate fft */
     60  aubio_mfft_do (pv->fft,pv->data,fftgrain);
    7661}
    7762
    7863void aubio_pvoc_rdo(aubio_pvoc_t *pv,cvec_t * fftgrain, fvec_t * synthnew) {
    79         uint_t i,j;
    80         /* calculate rfft */
    81         aubio_mfft_rdo(pv->fft,fftgrain,pv->synth);
    82         /* unshift */
    83         vec_shift(pv->synth);
    84         for (i=0; i<pv->channels; i++) {
    85                 for (j=0; j<pv->win_s; j++) pv->synth->data[i][j] *= pv->w[j];
    86                 aubio_pvoc_addsynth(pv->synth->data[i],pv->synthold->data[i],
    87                                 synthnew->data[i],pv->win_s,pv->hop_s);
    88         }
     64  uint_t i;
     65  /* calculate rfft */
     66  aubio_mfft_rdo(pv->fft,fftgrain,pv->synth);
     67  /* unshift */
     68  vec_shift(pv->synth);
     69  for (i=0; i<pv->channels; i++) {
     70    aubio_pvoc_addsynth(pv->synth->data[i],pv->synthold->data[i],
     71        synthnew->data[i],pv->win_s,pv->hop_s);
     72  }
    8973}
    9074
    9175aubio_pvoc_t * new_aubio_pvoc (uint_t win_s, uint_t hop_s, uint_t channels) {
    92         aubio_pvoc_t * pv = AUBIO_NEW(aubio_pvoc_t);
     76  aubio_pvoc_t * pv = AUBIO_NEW(aubio_pvoc_t);
    9377
    94         if (win_s < 2*hop_s) {
    95                 AUBIO_ERR("Hop size bigger than half the window size!\n");
    96                 AUBIO_ERR("Resetting hop size to half the window size.\n");
    97                 hop_s = win_s / 2;
    98         }
     78  if (win_s < 2*hop_s) {
     79    AUBIO_ERR("Hop size bigger than half the window size!\n");
     80    AUBIO_ERR("Resetting hop size to half the window size.\n");
     81    hop_s = win_s / 2;
     82  }
    9983
    100         if (hop_s < 1) {
    101                 AUBIO_ERR("Hop size is smaller than 1!\n");
    102                 AUBIO_ERR("Resetting hop size to half the window size.\n");
    103                 hop_s = win_s / 2;
    104         }
    105        
    106         pv->fft      = new_aubio_mfft(win_s,channels);
     84  if (hop_s < 1) {
     85    AUBIO_ERR("Hop size is smaller than 1!\n");
     86    AUBIO_ERR("Resetting hop size to half the window size.\n");
     87    hop_s = win_s / 2;
     88  }
    10789
    108         /* remember old */
    109         pv->data     = new_fvec (win_s, channels);
    110         pv->synth    = new_fvec (win_s, channels);
     90  pv->fft      = new_aubio_mfft(win_s,channels);
    11191
    112         /* new input output */
    113         pv->dataold  = new_fvec  (win_s-hop_s, channels);
    114         pv->synthold = new_fvec (win_s-hop_s, channels);
    115         pv->w        = AUBIO_ARRAY(smpl_t,win_s);
    116         aubio_window(pv->w,win_s,aubio_win_hanningz);
     92  /* remember old */
     93  pv->data     = new_fvec (win_s, channels);
     94  pv->synth    = new_fvec (win_s, channels);
    11795
    118         pv->channels = channels;
    119         pv->hop_s    = hop_s;
    120         pv->win_s    = win_s;
     96  /* new input output */
     97  pv->dataold  = new_fvec  (win_s-hop_s, channels);
     98  pv->synthold = new_fvec (win_s-hop_s, channels);
     99  pv->w        = AUBIO_ARRAY(smpl_t,win_s);
     100  aubio_window(pv->w,win_s,aubio_win_hanningz);
    121101
    122         return pv;
     102  pv->channels = channels;
     103  pv->hop_s    = hop_s;
     104  pv->win_s    = win_s;
     105
     106  return pv;
    123107}
    124108
    125109void del_aubio_pvoc(aubio_pvoc_t *pv) {
    126         del_fvec(pv->data);
    127         del_fvec(pv->synth);
    128         del_fvec(pv->dataold);
    129         del_fvec(pv->synthold);
    130         del_aubio_mfft(pv->fft);
    131         AUBIO_FREE(pv->w);
    132         AUBIO_FREE(pv);
     110  del_fvec(pv->data);
     111  del_fvec(pv->synth);
     112  del_fvec(pv->dataold);
     113  del_fvec(pv->synthold);
     114  del_aubio_mfft(pv->fft);
     115  AUBIO_FREE(pv->w);
     116  AUBIO_FREE(pv);
    133117}
    134118
    135119static void aubio_pvoc_swapbuffers(smpl_t * data, smpl_t * dataold,
    136                 const smpl_t * datanew, uint_t win_s, uint_t hop_s)
     120    const smpl_t * datanew, uint_t win_s, uint_t hop_s)
    137121{
    138         uint_t i;
    139         for (i=0;i<win_s-hop_s;i++)
    140                 data[i] = dataold[i];
    141         for (i=0;i<hop_s;i++)
    142                 data[win_s-hop_s+i] = datanew[i];
    143         for (i=0;i<win_s-hop_s;i++)
    144                 dataold[i] = data[i+hop_s];
     122  uint_t i;
     123  for (i=0;i<win_s-hop_s;i++)
     124    data[i] = dataold[i];
     125  for (i=0;i<hop_s;i++)
     126    data[win_s-hop_s+i] = datanew[i];
     127  for (i=0;i<win_s-hop_s;i++)
     128    dataold[i] = data[i+hop_s];
    145129}
    146130
    … …  
    148132                smpl_t * synthnew, uint_t win_s, uint_t hop_s)
    149133{
    150         uint_t i;
    151         smpl_t scale = 2*hop_s/(win_s+.0);
    152         /* add new synth to old one and put result in synthnew */
    153         for (i=0;i<hop_s;i++)                                           
    154                 synthnew[i] = synthold[i]+synth[i]*scale;
    155         /* shift synthold */
    156         for (i=0;i<win_s-2*hop_s;i++)   
    157                 synthold[i] = synthold[i+hop_s];
    158         /* erase last frame in synthold */
    159         for (i=win_s-hop_s;i<win_s;i++)
    160                 synthold[i-hop_s]=0.;
    161         /* additive synth */
    162         for (i=0;i<win_s-hop_s;i++)     
    163                 synthold[i] += synth[i+hop_s]*scale;
     134  uint_t i;
     135  smpl_t scale = 2*hop_s/(win_s+.0);
     136  /* add new synth to old one and put result in synthnew */
     137  for (i=0;i<hop_s;i++)
     138    synthnew[i] = synthold[i]+synth[i]*scale;
     139  /* shift synthold */
     140  for (i=0;i<win_s-2*hop_s;i++)
     141    synthold[i] = synthold[i+hop_s];
     142  /* erase last frame in synthold */
     143  for (i=win_s-hop_s;i<win_s;i++)
     144    synthold[i-hop_s]=0.;
     145  /* additive synth */
     146  for (i=0;i<win_s-hop_s;i++)
     147    synthold[i] += synth[i+hop_s]*scale;
    164148}
    165149

  • src/types.h

    r1da7e08 rc721874  
    4040
    4141/** short sample format (32 or 64 bits) */
    42 typedef float        smpl_t;
    43 //typedef double       smpl_t;
     42//typedef float        smpl_t;
     43typedef double       smpl_t;
    4444/** long sample format (64 bits or more) */
    4545typedef double       lsmp_t;

  • tests/python/fvec.py

    r1da7e08 rc721874  
    2222    for index in range(buf_size):
    2323      for channel in range(channels):
    24         self.assertEqual(fvec_read_sample(self.vector,channel,index),0.)
     24        self.assertEqual(0., fvec_read_sample(self.vector,channel,index))
    2525
    2626  def test_fvec_write_sample(self):
    … …  
    3131    for index in range(buf_size):
    3232      for channel in range(channels):
    33         self.assertEqual(fvec_read_sample(self.vector,channel,index),1.)
     33        self.assertEqual(1., fvec_read_sample(self.vector,channel,index))
    3434
    3535if __name__ == '__main__':

  • tests/src/Makefile.am

    r1da7e08 rc721874  
    1010        test-hist \
    1111        test-scale \
    12         test-sample \
     12        test-cvec \
     13        test-fvec \
    1314        test-window \
    1415        test-filter \
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