1 /*************************************************************************/
2 /* */
3 /* Centre for Speech Technology Research */
4 /* University of Edinburgh, UK */
5 /* Copyright (c) 1996,1997 */
6 /* All Rights Reserved. */
7 /* */
8 /* Permission is hereby granted, free of charge, to use and distribute */
9 /* this software and its documentation without restriction, including */
10 /* without limitation the rights to use, copy, modify, merge, publish, */
11 /* distribute, sublicense, and/or sell copies of this work, and to */
12 /* permit persons to whom this work is furnished to do so, subject to */
13 /* the following conditions: */
14 /* 1. The code must retain the above copyright notice, this list of */
15 /* conditions and the following disclaimer. */
16 /* 2. Any modifications must be clearly marked as such. */
17 /* 3. Original authors' names are not deleted. */
18 /* 4. The authors' names are not used to endorse or promote products */
19 /* derived from this software without specific prior written */
20 /* permission. */
21 /* */
22 /* THE UNIVERSITY OF EDINBURGH AND THE CONTRIBUTORS TO THIS WORK */
23 /* DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING */
24 /* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT */
25 /* SHALL THE UNIVERSITY OF EDINBURGH NOR THE CONTRIBUTORS BE LIABLE */
26 /* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES */
27 /* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN */
28 /* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, */
29 /* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF */
30 /* THIS SOFTWARE. */
31 /* */
32 /*************************************************************************/
33 /* Author : Alistair Conkie */
34 /* Date : 1996 */
35 /* This version was gifted by Alistair for this new */
36 /* copyright, the original retains their original copyright */
37 /* */
38 /*************************************************************************/
39 #include <stdio.h>
40 #include "t2s.h"
41
42 static int min(int a, int b);
43 static float local_fmax(float a, float b);
44
durations(SPN * ps,ACOUSTIC * as)45 void durations(SPN *ps, ACOUSTIC *as)
46 {
47 int durdist;
48 int interdist;
49 float multiplier_i;
50 float proportion;
51 int i;
52 int j;
53
54 for(i=0;i<ps->p_sz;i++)
55 ps->scale[i] = (float)ps->duration[i] /
56 (float)((ps->pb[i+1]-ps->pb[i])*FR_SZ);
57
58 ps->cum_dur[0] = 0; /* do cumulative at same time */
59 for(i=0,j=0;i<as->f_sz;i++) {
60 if(i == ps->pb[j]) {
61 if(j != 0) {
62 ps->cum_dur[j] = ps->duration[j-1] + ps->cum_dur[j-1];
63 }
64 as->duration[i] = FR_SZ;
65 ps->duration[j] = FR_SZ; /* saves adding later */
66 j++;
67 } else {
68 durdist = min(i-ps->pb[j-1],ps->pb[j]-i);
69 interdist = ps->pb[j] - ps->pb[j-1];
70 proportion = (float)durdist/(float)interdist;
71 multiplier_i = local_fmax(0.01,4.0*proportion*(ps->scale[j-1]-1.0)+1.0);
72 as->duration[i] = FR_SZ*multiplier_i;
73 ps->duration[j-1] += as->duration[i];
74 }
75 }
76 }
77
min(int a,int b)78 static int min(int a, int b)
79 {
80 return((a<b)?a:b);
81 }
82
local_fmax(float a,float b)83 static float local_fmax(float a, float b)
84 {
85 return((a>b)?a:b);
86 }
87
88