1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
|
/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */
/* ====================================================================
* Copyright (c) 2006 Carnegie Mellon University. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* This work was supported in part by funding from the Defense Advanced
* Research Projects Agency and the National Science Foundation of the
* United States of America, and the CMU Sphinx Speech Consortium.
*
* THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND
* ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY
* NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* ====================================================================
*
*/
/*********************************************************************
*
* File: fe_warp.c
*
* Description:
* Allows a caller to choose a warping function.
*********************************************************************/
/* static char rcsid[] = "@(#)$Id: fe_warp.c,v 1.2 2006/02/17 00:31:34 egouvea Exp $";*/
#include "fe_warp_inverse_linear.h"
#include "fe_warp_affine.h"
#include "fe_warp_piecewise_linear.h"
#include "fe_warp.h"
#include "sphinxbase/err.h"
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <stdlib.h>
/* This is for aliases for each of the entries below. Currently not
used.
*/
static char *__name2id[] = {
"inverse",
"linear",
"piecewise",
NULL
};
static char *name2id[] = {
"inverse_linear",
"affine",
"piecewise_linear",
NULL
};
static fe_warp_conf_t fe_warp_conf[FE_WARP_ID_MAX + 1] = {
{fe_warp_inverse_linear_set_parameters,
fe_warp_inverse_linear_doc,
fe_warp_inverse_linear_id,
fe_warp_inverse_linear_n_param,
fe_warp_inverse_linear_warped_to_unwarped,
fe_warp_inverse_linear_unwarped_to_warped,
fe_warp_inverse_linear_print}, /* Inverse linear warping */
{fe_warp_affine_set_parameters,
fe_warp_affine_doc,
fe_warp_affine_id,
fe_warp_affine_n_param,
fe_warp_affine_warped_to_unwarped,
fe_warp_affine_unwarped_to_warped,
fe_warp_affine_print}, /* Affine warping */
{fe_warp_piecewise_linear_set_parameters,
fe_warp_piecewise_linear_doc,
fe_warp_piecewise_linear_id,
fe_warp_piecewise_linear_n_param,
fe_warp_piecewise_linear_warped_to_unwarped,
fe_warp_piecewise_linear_unwarped_to_warped,
fe_warp_piecewise_linear_print}, /* Piecewise_Linear warping */
};
int
fe_warp_set(melfb_t *mel, const char *id_name)
{
uint32 i;
for (i = 0; name2id[i]; i++) {
if (strcmp(id_name, name2id[i]) == 0) {
mel->warp_id = i;
break;
}
}
if (name2id[i] == NULL) {
for (i = 0; __name2id[i]; i++) {
if (strcmp(id_name, __name2id[i]) == 0) {
mel->warp_id = i;
break;
}
}
if (__name2id[i] == NULL) {
E_ERROR("Unimplemented warping function %s\n", id_name);
E_ERROR("Implemented functions are:\n");
for (i = 0; name2id[i]; i++) {
fprintf(stderr, "\t%s\n", name2id[i]);
}
mel->warp_id = FE_WARP_ID_NONE;
return FE_START_ERROR;
}
}
return FE_SUCCESS;
}
void
fe_warp_set_parameters(melfb_t *mel, char const *param_str, float sampling_rate)
{
if (mel->warp_id <= FE_WARP_ID_MAX) {
fe_warp_conf[mel->warp_id].set_parameters(param_str, sampling_rate);
}
else if (mel->warp_id == FE_WARP_ID_NONE) {
E_FATAL("feat module must be configured w/ a valid ID\n");
}
else {
E_FATAL
("fe_warp module misconfigured with invalid fe_warp_id %u\n",
mel->warp_id);
}
}
const char *
fe_warp_doc(melfb_t *mel)
{
if (mel->warp_id <= FE_WARP_ID_MAX) {
return fe_warp_conf[mel->warp_id].doc();
}
else if (mel->warp_id == FE_WARP_ID_NONE) {
E_FATAL("fe_warp module must be configured w/ a valid ID\n");
}
else {
E_FATAL
("fe_warp module misconfigured with invalid fe_warp_id %u\n",
mel->warp_id);
}
return NULL;
}
uint32
fe_warp_id(melfb_t *mel)
{
if (mel->warp_id <= FE_WARP_ID_MAX) {
assert(mel->warp_id == fe_warp_conf[mel->warp_id].id());
return mel->warp_id;
}
else if (mel->warp_id != FE_WARP_ID_NONE) {
E_FATAL
("fe_warp module misconfigured with invalid fe_warp_id %u\n",
mel->warp_id);
}
return FE_WARP_ID_NONE;
}
uint32
fe_warp_n_param(melfb_t *mel)
{
if (mel->warp_id <= FE_WARP_ID_MAX) {
return fe_warp_conf[mel->warp_id].n_param();
}
else if (mel->warp_id == FE_WARP_ID_NONE) {
E_FATAL("fe_warp module must be configured w/ a valid ID\n");
}
else {
E_FATAL
("fe_warp module misconfigured with invalid fe_warp_id %u\n",
mel->warp_id);
}
return 0;
}
float
fe_warp_warped_to_unwarped(melfb_t *mel, float nonlinear)
{
if (mel->warp_id <= FE_WARP_ID_MAX) {
return fe_warp_conf[mel->warp_id].warped_to_unwarped(nonlinear);
}
else if (mel->warp_id == FE_WARP_ID_NONE) {
E_FATAL("fe_warp module must be configured w/ a valid ID\n");
}
else {
E_FATAL
("fe_warp module misconfigured with invalid fe_warp_id %u\n",
mel->warp_id);
}
return 0;
}
float
fe_warp_unwarped_to_warped(melfb_t *mel,float linear)
{
if (mel->warp_id <= FE_WARP_ID_MAX) {
return fe_warp_conf[mel->warp_id].unwarped_to_warped(linear);
}
else if (mel->warp_id == FE_WARP_ID_NONE) {
E_FATAL("fe_warp module must be configured w/ a valid ID\n");
}
else {
E_FATAL
("fe_warp module misconfigured with invalid fe_warp_id %u\n",
mel->warp_id);
}
return 0;
}
void
fe_warp_print(melfb_t *mel, const char *label)
{
if (mel->warp_id <= FE_WARP_ID_MAX) {
fe_warp_conf[mel->warp_id].print(label);
}
else if (mel->warp_id == FE_WARP_ID_NONE) {
E_FATAL("fe_warp module must be configured w/ a valid ID\n");
}
else {
E_FATAL
("fe_warp module misconfigured with invalid fe_warp_id %u\n",
mel->warp_id);
}
}
|
