-
Notifications
You must be signed in to change notification settings - Fork 26
/
mglsadf.cc
420 lines (382 loc) · 15.5 KB
/
mglsadf.cc
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
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
// ------------------------------------------------------------------------ //
// Copyright 2021 SPTK Working Group //
// //
// Licensed under the Apache License, Version 2.0 (the "License"); //
// you may not use this file except in compliance with the License. //
// You may obtain a copy of the License at //
// //
// http://www.apache.org/licenses/LICENSE-2.0 //
// //
// Unless required by applicable law or agreed to in writing, software //
// distributed under the License is distributed on an "AS IS" BASIS, //
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. //
// See the License for the specific language governing permissions and //
// limitations under the License. //
// ------------------------------------------------------------------------ //
#include <algorithm> // std::transform
#include <cmath> // std::log
#include <fstream> // std::ifstream
#include <iomanip> // std::setw
#include <iostream> // std::cerr, std::cin, std::cout, std::endl, etc.
#include <sstream> // std::ostringstream
#include <vector> // std::vector
#include "GETOPT/ya_getopt.h"
#include "SPTK/conversion/generalized_cepstrum_gain_normalization.h"
#include "SPTK/conversion/mel_cepstrum_to_mlsa_digital_filter_coefficients.h"
#include "SPTK/filter/mglsa_digital_filter.h"
#include "SPTK/input/input_source_from_stream.h"
#include "SPTK/input/input_source_interpolation.h"
#include "SPTK/utils/sptk_utils.h"
namespace {
const int kDefaultNumFilterOrder(25);
const double kDefaultAlpha(0.35);
const int kDefaultNumStage(0);
const int kDefaultFramePeriod(100);
const int kDefaultInterpolationPeriod(1);
const int kDefaultNumPadeOrder(4);
const bool kDefaultTranspositionFlag(false);
const bool kDefaultGainFlag(true);
void PrintUsage(std::ostream* stream) {
// clang-format off
*stream << std::endl;
*stream << " mglsadf - MGLSA digital filter for speech synthesis" << std::endl; // NOLINT
*stream << std::endl;
*stream << " usage:" << std::endl;
*stream << " mglsadf [ options ] mgcfile [ infile ] > stdout" << std::endl; // NOLINT
*stream << " options:" << std::endl;
*stream << " -m m : order of filter coefficients ( int)[" << std::setw(5) << std::right << kDefaultNumFilterOrder << "][ 0 <= m <= ]" << std::endl; // NOLINT
*stream << " -a a : all-pass constant (double)[" << std::setw(5) << std::right << kDefaultAlpha << "][ -1.0 < a < 1.0 ]" << std::endl; // NOLINT
*stream << " -c c : gamma = -1 / c ( int)[" << std::setw(5) << std::right << kDefaultNumStage << "][ 0 <= c <= ]" << std::endl; // NOLINT
*stream << " -p p : frame period ( int)[" << std::setw(5) << std::right << kDefaultFramePeriod << "][ 1 <= p <= ]" << std::endl; // NOLINT
*stream << " -i i : interpolation period ( int)[" << std::setw(5) << std::right << kDefaultInterpolationPeriod << "][ 0 <= i <= p/2 ]" << std::endl; // NOLINT
*stream << " -P P : order of Pade approximation ( int)[" << std::setw(5) << std::right << kDefaultNumPadeOrder << "][ 4 <= P <= 7 ]" << std::endl; // NOLINT
*stream << " -t : transpose filter ( bool)[" << std::setw(5) << std::right << sptk::ConvertBooleanToString(kDefaultTranspositionFlag) << "]" << std::endl; // NOLINT
*stream << " -k : filtering without gain ( bool)[" << std::setw(5) << std::right << sptk::ConvertBooleanToString(!kDefaultGainFlag) << "]" << std::endl; // NOLINT
*stream << " -h : print this message" << std::endl;
*stream << " mgcfile:" << std::endl;
*stream << " mel-generalized cepstral coefficients (double)" << std::endl; // NOLINT
*stream << " infile:" << std::endl;
*stream << " filter input (double)[stdin]" << std::endl; // NOLINT
*stream << " stdout:" << std::endl;
*stream << " filter output (double)" << std::endl; // NOLINT
*stream << " notice:" << std::endl;
*stream << " if i = 0, don't interpolate filter coefficients" << std::endl; // NOLINT
*stream << " if c = 0, MLSA filter is used" << std::endl;
*stream << " if c > 0, MGLSA filter is used and P is ignored" << std::endl; // NOLINT
*stream << std::endl;
*stream << " SPTK: version " << sptk::kVersion << std::endl;
*stream << std::endl;
// clang-format on
}
class InputSourcePreprocessingForMelCepstrum
: public sptk::InputSourceInterface {
public:
InputSourcePreprocessingForMelCepstrum(double alpha, double gamma,
bool gain_flag,
sptk::InputSourceInterface* source)
: gamma_(gamma),
gain_flag_(gain_flag),
source_(source),
mel_cepstrum_to_mlsa_digital_filter_coefficients_(
source ? source->GetSize() - 1 : 0, alpha),
generalized_cepstrum_gain_normalization_(
source ? source->GetSize() - 1 : 0, gamma),
is_valid_(true) {
if (NULL == source || !source->IsValid() ||
!mel_cepstrum_to_mlsa_digital_filter_coefficients_.IsValid() ||
!generalized_cepstrum_gain_normalization_.IsValid()) {
is_valid_ = false;
return;
}
}
~InputSourcePreprocessingForMelCepstrum() {
}
bool GetGainFlag() const {
return gain_flag_;
}
virtual int GetSize() const {
return source_ ? source_->GetSize() : 0;
}
virtual bool IsValid() const {
return is_valid_;
}
virtual bool Get(std::vector<double>* mlsa_digital_filter_coefficients) {
if (!is_valid_) {
return false;
}
if (!source_->Get(&mel_cepstrum_)) {
return false;
}
if (!mel_cepstrum_to_mlsa_digital_filter_coefficients_.Run(
mel_cepstrum_, mlsa_digital_filter_coefficients)) {
return false;
}
if (0.0 != gamma_) {
if (!generalized_cepstrum_gain_normalization_.Run(
mlsa_digital_filter_coefficients)) {
return false;
}
if (gain_flag_) {
(*mlsa_digital_filter_coefficients)[0] =
std::log((*mlsa_digital_filter_coefficients)[0]);
}
std::transform(mlsa_digital_filter_coefficients->begin() + 1,
mlsa_digital_filter_coefficients->end(),
mlsa_digital_filter_coefficients->begin() + 1,
[this](double b) { return b * gamma_; });
}
if (!gain_flag_) {
(*mlsa_digital_filter_coefficients)[0] = 0.0; // exp(0) = 1
}
return true;
}
private:
const double gamma_;
const bool gain_flag_;
InputSourceInterface* source_;
const sptk::MelCepstrumToMlsaDigitalFilterCoefficients
mel_cepstrum_to_mlsa_digital_filter_coefficients_;
const sptk::GeneralizedCepstrumGainNormalization
generalized_cepstrum_gain_normalization_;
bool is_valid_;
std::vector<double> mel_cepstrum_;
DISALLOW_COPY_AND_ASSIGN(InputSourcePreprocessingForMelCepstrum);
};
} // namespace
/**
* @a mglsadf [ @e option ] @e mgcfile [ @e infile ]
*
* - @b -m @e int
* - order of coefficients @f$(0 \le M)@f$
* - @b -a @e double
* - all-pass constant @f$(|\alpha| < 1)@f$
* - @b -c @e int
* - gamma @f$\gamma = -1 / C@f$ @f$(1 \le C)@f$
* - @b -p @e int
* - frame period @f$(1 \le P)@f$
* - @b -i @e int
* - interpolation period @f$(0 \le I \le P/2)@f$
* - @b -P @e int
* - order of Pade approximation @f$(4 \le L \le 7)@f$
* - @b -t
* - transpose filter
* - @b -k
* - filtering without gain
* - @b mgcfile @e str
* - double-type mel-generalized cepstral coefficients
* - @b infile @e str
* - double-type input sequence
* - @b stdout
* - double-type output sequence
*
* In the below example, an excitation signal generated from pitch information
* is passed through the MLSA filter built from mel-cepstral coefficients
* @c data.mcep.
*
* @code{.sh}
* excite < data.pitch | mglsadf data.mcep > data.syn
* @endcode
*
* @param[in] argc Number of arguments.
* @param[in] argv Argument vector.
* @return 0 on success, 1 on failure.
*/
int main(int argc, char* argv[]) {
int num_filter_order(kDefaultNumFilterOrder);
double alpha(kDefaultAlpha);
int num_stage(kDefaultNumStage);
int frame_period(kDefaultFramePeriod);
int interpolation_period(kDefaultInterpolationPeriod);
int num_pade_order(kDefaultNumPadeOrder);
bool transposition_flag(kDefaultTranspositionFlag);
bool gain_flag(kDefaultGainFlag);
for (;;) {
const int option_char(
getopt_long(argc, argv, "m:a:c:p:i:P:tkh", NULL, NULL));
if (-1 == option_char) break;
switch (option_char) {
case 'm': {
if (!sptk::ConvertStringToInteger(optarg, &num_filter_order) ||
num_filter_order < 0) {
std::ostringstream error_message;
error_message << "The argument for the -m option must be a "
<< "non-negative integer";
sptk::PrintErrorMessage("mglsadf", error_message);
return 1;
}
break;
}
case 'a': {
if (!sptk::ConvertStringToDouble(optarg, &alpha) ||
!sptk::IsValidAlpha(alpha)) {
std::ostringstream error_message;
error_message
<< "The argument for the -a option must be in (-1.0, 1.0)";
sptk::PrintErrorMessage("mglsadf", error_message);
return 1;
}
break;
}
case 'c': {
if (!sptk::ConvertStringToInteger(optarg, &num_stage) ||
num_stage < 0) {
std::ostringstream error_message;
error_message << "The argument for the -c option must be a "
<< "non-negative integer";
sptk::PrintErrorMessage("mglsadf", error_message);
return 1;
}
break;
}
case 'p': {
if (!sptk::ConvertStringToInteger(optarg, &frame_period) ||
frame_period <= 0) {
std::ostringstream error_message;
error_message
<< "The argument for the -p option must be a positive integer";
sptk::PrintErrorMessage("mglsadf", error_message);
return 1;
}
break;
}
case 'i': {
if (!sptk::ConvertStringToInteger(optarg, &interpolation_period) ||
interpolation_period < 0) {
std::ostringstream error_message;
error_message << "The argument for the -i option must be a "
<< "non-negative integer";
sptk::PrintErrorMessage("mglsadf", error_message);
return 1;
}
break;
}
case 'P': {
const int min(4);
const int max(7);
if (!sptk::ConvertStringToInteger(optarg, &num_pade_order) ||
!sptk::IsInRange(num_pade_order, min, max)) {
std::ostringstream error_message;
error_message << "The argument for the -P option must be an integer "
<< "in the range of " << min << " to " << max;
sptk::PrintErrorMessage("mglsadf", error_message);
return 1;
}
break;
}
case 't': {
transposition_flag = true;
break;
}
case 'k': {
gain_flag = false;
break;
}
case 'h': {
PrintUsage(&std::cout);
return 0;
}
default: {
PrintUsage(&std::cerr);
return 1;
}
}
}
if (frame_period / 2 < interpolation_period) {
std::ostringstream error_message;
error_message << "Interpolation period must be equal to or less than half "
<< "frame period";
sptk::PrintErrorMessage("mglsadf", error_message);
return 1;
}
// Get input file names.
const char* filter_coefficients_file;
const char* filter_input_file;
const int num_input_files(argc - optind);
if (2 == num_input_files) {
filter_coefficients_file = argv[argc - 2];
filter_input_file = argv[argc - 1];
} else if (1 == num_input_files) {
filter_coefficients_file = argv[argc - 1];
filter_input_file = NULL;
} else {
std::ostringstream error_message;
error_message << "Just two input files, mgcfile and infile, are required";
sptk::PrintErrorMessage("mglsadf", error_message);
return 1;
}
if (!sptk::SetBinaryMode()) {
std::ostringstream error_message;
error_message << "Cannot set translation mode";
sptk::PrintErrorMessage("mglsadf", error_message);
return 1;
}
// Open stream for reading filter coefficients.
std::ifstream ifs1;
ifs1.open(filter_coefficients_file, std::ios::in | std::ios::binary);
if (ifs1.fail()) {
std::ostringstream error_message;
error_message << "Cannot open file " << filter_coefficients_file;
sptk::PrintErrorMessage("mglsadf", error_message);
return 1;
}
std::istream& stream_for_filter_coefficients(ifs1);
// Open stream for reading input signals.
std::ifstream ifs2;
if (NULL != filter_input_file) {
ifs2.open(filter_input_file, std::ios::in | std::ios::binary);
if (ifs2.fail()) {
std::ostringstream error_message;
error_message << "Cannot open file " << filter_input_file;
sptk::PrintErrorMessage("mglsadf", error_message);
return 1;
}
}
std::istream& stream_for_filter_input(ifs2.is_open() ? ifs2 : std::cin);
// Prepare variables for filtering.
const int filter_length(num_filter_order + 1);
std::vector<double> filter_coefficients(filter_length);
sptk::InputSourceFromStream input_source(false, filter_length,
&stream_for_filter_coefficients);
const double gamma((0 == num_stage) ? 0.0 : -1.0 / num_stage);
InputSourcePreprocessingForMelCepstrum preprocessing(alpha, gamma, gain_flag,
&input_source);
sptk::InputSourceInterpolation interpolation(
frame_period, interpolation_period, true, &preprocessing);
if (!interpolation.IsValid()) {
std::ostringstream error_message;
error_message << "Failed to initialize InputSource";
sptk::PrintErrorMessage("mglsadf", error_message);
return 1;
}
sptk::MglsaDigitalFilter filter(num_filter_order, num_pade_order, num_stage,
alpha, transposition_flag);
sptk::MglsaDigitalFilter::Buffer buffer;
if (!filter.IsValid()) {
std::ostringstream error_message;
error_message << "Failed to initialize MglsaDigitalFilter";
sptk::PrintErrorMessage("mglsadf", error_message);
return 1;
}
double signal;
while (sptk::ReadStream(&signal, &stream_for_filter_input)) {
if (!interpolation.Get(&filter_coefficients)) {
std::ostringstream error_message;
error_message << "Cannot get filter coefficients";
sptk::PrintErrorMessage("mglsadf", error_message);
return 1;
}
if (!filter.Run(filter_coefficients, &signal, &buffer)) {
std::ostringstream error_message;
error_message << "Failed to apply MGLSA digital filter";
sptk::PrintErrorMessage("mglsadf", error_message);
return 1;
}
if (!sptk::WriteStream(signal, &std::cout)) {
std::ostringstream error_message;
error_message << "Failed to write a filter output";
sptk::PrintErrorMessage("mglsadf", error_message);
return 1;
}
}
return 0;
}