/* ----------------------------------------------------------------- */
/* The English TTS System "Flite+hts_engine" */
/* developed by HTS Working Group */
/* http://hts-engine.sourceforge.net/ */
/* ----------------------------------------------------------------- */
/* */
/* Copyright (c) 2005-2013 Nagoya Institute of Technology */
/* Department of Computer Science */
/* */
/* 2005-2008 Tokyo Institute of Technology */
/* Interdisciplinary Graduate School of */
/* Science and Engineering */
/* */
/* All rights reserved. */
/* */
/* Redistribution and use in source and binary forms, with or */
/* without modification, are permitted provided that the following */
/* conditions are met: */
/* */
/* - Redistributions of source code must retain the above copyright */
/* notice, this list of conditions and the following disclaimer. */
/* - 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. */
/* - Neither the name of the HTS working group nor the names of its */
/* contributors may be used to endorse or promote products derived */
/* from this software without specific prior written permission. */
/* */
/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND */
/* CONTRIBUTORS "AS IS" AND ANY EXPRESS 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 THE COPYRIGHT OWNER OR CONTRIBUTORS */
/* 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. */
/* ----------------------------------------------------------------- */
#include "cst_synth.h"
#include "cst_utt_utils.h"
#include "cst_math.h"
#include "cst_file.h"
#include "cst_val.h"
#include "cst_string.h"
#include "cst_alloc.h"
#include "cst_item.h"
#include "cst_relation.h"
#include "cst_utterance.h"
#include "cst_tokenstream.h"
#include "cst_string.h"
#include "cst_regex.h"
#include "cst_features.h"
#include "cst_utterance.h"
#include "flite.h"
#include "cst_synth.h"
#include "cst_utt_utils.h"
#include "flite_hts_engine.h"
/* HTS_GStreamSet_get_total_nsamples: get total number of sample */
size_t HTS_GStreamSet_get_total_nsamples(HTS_GStreamSet * gss);
/* HTS_GStreamSet_get_speech: get synthesized speech parameter */
double HTS_GStreamSet_get_speech(HTS_GStreamSet * gss, size_t sample_index);
#define REGISTER_VOX register_cmu_us_kal
#define UNREGISTER_VOX unregister_cmu_us_kal
#define MAXBUFLEN 1024
cst_voice *REGISTER_VOX(const char *voxdir);
cst_voice *UNREGISTER_VOX(cst_voice * vox);
/* Flite_HTS_Engine_create_label: create label per phoneme */
static void Flite_HTS_Engine_create_label(Flite_HTS_Engine * f, cst_item * item, char *label)
{
char seg_pp[8];
char seg_p[8];
char seg_c[8];
char seg_n[8];
char seg_nn[8];
char endtone[8];
int sub_phrases = 0;
int lisp_total_phrases = 0;
int tmp1 = 0;
int tmp2 = 0;
int tmp3 = 0;
int tmp4 = 0;
/* load segments */
strcpy(seg_pp, ffeature_string(item, "p.p.name"));
strcpy(seg_p, ffeature_string(item, "p.name"));
strcpy(seg_c, ffeature_string(item, "name"));
strcpy(seg_n, ffeature_string(item, "n.name"));
strcpy(seg_nn, ffeature_string(item, "n.n.name"));
/* load endtone */
strcpy(endtone, ffeature_string(item, "R:SylStructure.parent.parent.R:Phrase.parent.daughtern.R:SylStructure.daughtern.endtone"));
if (strcmp(seg_c, "pau") == 0) {
/* for pause */
if (item_next(item) != NULL) {
sub_phrases = ffeature_int(item, "n.R:SylStructure.parent.R:Syllable.sub_phrases");
tmp1 = ffeature_int(item, "n.R:SylStructure.parent.parent.R:Phrase.parent.lisp_total_syls");
tmp2 = ffeature_int(item, "n.R:SylStructure.parent.parent.R:Phrase.parent.lisp_total_words");
lisp_total_phrases = ffeature_int(item, "n.R:SylStructure.parent.parent.R:Phrase.parent.lisp_total_phrases");
} else {
sub_phrases = ffeature_int(item, "p.R:SylStructure.parent.R:Syllable.sub_phrases");
tmp1 = ffeature_int(item, "p.R:SylStructure.parent.parent.R:Phrase.parent.lisp_total_syls");
tmp2 = ffeature_int(item, "p.R:SylStructure.parent.parent.R:Phrase.parent.lisp_total_words");
lisp_total_phrases = ffeature_int(item, "p.R:SylStructure.parent.parent.R:Phrase.parent.lisp_total_phrases");
}
sprintf(label, "%s^%s-%s+%s=%s@x_x/A:%d_%d_%d/B:x-x-x@x-x&x-x#x-x$x-x!x-x;x-x|x/C:%d+%d+%d/D:%s_%d/E:x+x@x+x&x+x#x+x/F:%s_%d/G:%d_%d/H:x=x^%d=%d|%s/I:%d=%d/J:%d+%d-%d", strcmp(seg_pp, "0") == 0 ? "x" : seg_pp, strcmp(seg_p, "0") == 0 ? "x" : seg_p, seg_c, strcmp(seg_n, "0") == 0 ? "x" : seg_n, strcmp(seg_nn, "0") == 0 ? "x" : seg_nn, ffeature_int(item, "p.R:SylStructure.parent.R:Syllable.stress"), ffeature_int(item, "p.R:SylStructure.parent.R:Syllable.accented"), ffeature_int(item, "p.R:SylStructure.parent.R:Syllable.syl_numphones"), ffeature_int(item, "n.R:SylStructure.parent.R:Syllable.stress"), ffeature_int(item, "n.R:SylStructure.parent.R:Syllable.accented"), ffeature_int(item, "n.R:SylStructure.parent.R:Syllable.syl_numphones"), ffeature_string(item, "p.R:SylStructure.parent.parent.R:Word.gpos"), ffeature_int(item, "p.R:SylStructure.parent.parent.R:Word.word_numsyls"), ffeature_string(item, "n.R:SylStructure.parent.parent.R:Word.gpos"), ffeature_int(item, "n.R:SylStructure.parent.parent.R:Word.word_numsyls"), ffeature_int(item, "p.R:SylStructure.parent.parent.R:Phrase.parent.lisp_num_syls_in_phrase"), ffeature_int(item, "p.R:SylStructure.parent.parent.R:Phrase.parent.lisp_num_words_in_phrase"), sub_phrases + 1, lisp_total_phrases - sub_phrases, endtone, ffeature_int(item, "n.R:SylStructure.parent.parent.R:Phrase.parent.lisp_num_syls_in_phrase"), ffeature_int(item, "n.R:SylStructure.parent.parent.R:Phrase.parent.lisp_num_words_in_phrase"), tmp1, tmp2, lisp_total_phrases);
} else {
/* for no pause */
tmp1 = ffeature_int(item, "R:SylStructure.pos_in_syl");
tmp2 = ffeature_int(item, "R:SylStructure.parent.R:Syllable.syl_numphones");
tmp3 = ffeature_int(item, "R:SylStructure.parent.R:Syllable.pos_in_word");
tmp4 = ffeature_int(item, "R:SylStructure.parent.parent.R:Word.word_numsyls");
sub_phrases = ffeature_int(item, "R:SylStructure.parent.R:Syllable.sub_phrases");
lisp_total_phrases = ffeature_int(item, "R:SylStructure.parent.parent.R:Phrase.parent.lisp_total_phrases");
sprintf(label, "%s^%s-%s+%s=%s@%d_%d/A:%d_%d_%d/B:%d-%d-%d@%d-%d&%d-%d#%d-%d$%d-%d!%d-%d;%d-%d|%s/C:%d+%d+%d/D:%s_%d/E:%s+%d@%d+%d&%d+%d#%d+%d/F:%s_%d/G:%d_%d/H:%d=%d^%d=%d|%s/I:%d=%d/J:%d+%d-%d", strcmp(seg_pp, "0") == 0 ? "x" : seg_pp, strcmp(seg_p, "0") == 0 ? "x" : seg_p, seg_c, strcmp(seg_n, "0") == 0 ? "x" : seg_n, strcmp(seg_nn, "0") == 0 ? "x" : seg_nn, tmp1 + 1, tmp2 - tmp1, ffeature_int(item, "R:SylStructure.parent.R:Syllable.p.stress"), ffeature_int(item, "R:SylStructure.parent.R:Syllable.p.accented"), ffeature_int(item, "R:SylStructure.parent.R:Syllable.p.syl_numphones"), ffeature_int(item, "R:SylStructure.parent.R:Syllable.stress"), ffeature_int(item, "R:SylStructure.parent.R:Syllable.accented"), tmp2, tmp3 + 1, tmp4 - tmp3, ffeature_int(item, "R:SylStructure.parent.R:Syllable.syl_in") + 1, ffeature_int(item, "R:SylStructure.parent.R:Syllable.syl_out") + 1, ffeature_int(item, "R:SylStructure.parent.R:Syllable.ssyl_in") + 1, ffeature_int(item, "R:SylStructure.parent.R:Syllable.ssyl_out") + 1, ffeature_int(item, "R:SylStructure.parent.R:Syllable.asyl_in") + 1, ffeature_int(item, "R:SylStructure.parent.R:Syllable.asyl_out") + 1, ffeature_int(item, "R:SylStructure.parent.R:Syllable.lisp_distance_to_p_stress"), ffeature_int(item, "R:SylStructure.parent.R:Syllable.lisp_distance_to_n_stress"), ffeature_int(item, "R:SylStructure.parent.R:Syllable.lisp_distance_to_p_accent"), ffeature_int(item, "R:SylStructure.parent.R:Syllable.lisp_distance_to_n_accent"), ffeature_string(item, "R:SylStructure.parent.R:Syllable.syl_vowel"), ffeature_int(item, "R:SylStructure.parent.R:Syllable.n.stress"), ffeature_int(item, "R:SylStructure.parent.R:Syllable.n.accented"), ffeature_int(item, "R:SylStructure.parent.R:Syllable.n.syl_numphones"), ffeature_string(item, "R:SylStructure.parent.parent.R:Word.p.gpos"), ffeature_int(item, "R:SylStructure.parent.parent.R:Word.p.word_numsyls"), ffeature_string(item, "R:SylStructure.parent.parent.R:Word.gpos"), tmp4, ffeature_int(item, "R:SylStructure.parent.parent.R:Word.pos_in_phrase") + 1, ffeature_int(item, "R:SylStructure.parent.parent.R:Word.words_out"), ffeature_int(item, "R:SylStructure.parent.parent.R:Word.content_words_in") + 1, ffeature_int(item, "R:SylStructure.parent.parent.R:Word.content_words_out") + 1, ffeature_int(item, "R:SylStructure.parent.parent.R:Word.lisp_distance_to_p_content"), ffeature_int(item, "R:SylStructure.parent.parent.R:Word.lisp_distance_to_n_content"), ffeature_string(item, "R:SylStructure.parent.parent.R:Word.n.gpos"), ffeature_int(item, "R:SylStructure.parent.parent.R:Word.n.word_numsyls"), ffeature_int(item, "R:SylStructure.parent.parent.R:Phrase.parent.p.lisp_num_syls_in_phrase"), ffeature_int(item, "R:SylStructure.parent.parent.R:Phrase.parent.p.lisp_num_words_in_phrase"), ffeature_int(item, "R:SylStructure.parent.parent.R:Phrase.parent.lisp_num_syls_in_phrase"), ffeature_int(item, "R:SylStructure.parent.parent.R:Phrase.parent.lisp_num_words_in_phrase"), sub_phrases + 1, lisp_total_phrases - sub_phrases, strcmp(endtone, "0") == 0 ? "NONE" : endtone, ffeature_int(item, "R:SylStructure.parent.parent.R:Phrase.parent.n.lisp_num_syls_in_phrase"), ffeature_int(item, "R:SylStructure.parent.parent.R:Phrase.parent.n.lisp_num_words_in_phrase"), ffeature_int(item, "R:SylStructure.parent.parent.R:Phrase.parent.lisp_total_syls"), ffeature_int(item, "R:SylStructure.parent.parent.R:Phrase.parent.lisp_total_words"), lisp_total_phrases);
}
}
/* Flite_HTS_Engine_initialize: initialize system */
void Flite_HTS_Engine_initialize(Flite_HTS_Engine * f)
{
HTS_Engine_initialize(&f->engine);
}
/* Flite_HTS_Engine_load: load HTS voice */
HTS_Boolean Flite_HTS_Engine_load(Flite_HTS_Engine * f, const char *fn)
{
HTS_Boolean result;
char *voices = strdup(fn);
result = HTS_Engine_load(&f->engine, &voices, 1);
free(voices);
return result;
}
/* Flite_HTS_Engine_set_sampling_frequency: set sampling frequency */
void Flite_HTS_Engine_set_sampling_frequency(Flite_HTS_Engine * f, size_t i)
{
HTS_Engine_set_sampling_frequency(&f->engine, i);
}
/* Flite_HTS_Engine_set_fperiod: set frame period */
void Flite_HTS_Engine_set_fperiod(Flite_HTS_Engine * f, size_t i)
{
HTS_Engine_set_fperiod(&f->engine, i);
}
/* Flite_HTS_Engine_set_audio_buff_size: set audio buffer size */
void Flite_HTS_Engine_set_audio_buff_size(Flite_HTS_Engine * f, size_t i)
{
HTS_Engine_set_audio_buff_size(&f->engine, i);
}
/* Flite_HTS_Engine_set_alpha: set alpha */
void Flite_HTS_Engine_set_alpha(Flite_HTS_Engine * f, double d)
{
HTS_Engine_set_alpha(&f->engine, d);
}
/* Flite_HTS_Engine_set_beta: set beta */
void Flite_HTS_Engine_set_beta(Flite_HTS_Engine * f, double d)
{
HTS_Engine_set_beta(&f->engine, d);
}
/* Flite_HTS_Engine_add_half_tone: add half-tone */
void Flite_HTS_Engine_add_half_tone(Flite_HTS_Engine * f, double d)
{
HTS_Engine_add_half_tone(&f->engine, d);
}
/* Flite_HTS_Engine_set_msd_threshold: set MSD threshold */
void Flite_HTS_Engine_set_msd_threshold(Flite_HTS_Engine * f, size_t stream_index, double d)
{
HTS_Engine_set_msd_threshold(&f->engine, stream_index, d);
}
/* Flite_HTS_Engine_set_gv_weight: set GV weight */
void Flite_HTS_Engine_set_gv_weight(Flite_HTS_Engine * f, size_t stream_index, double d)
{
HTS_Engine_set_gv_weight(&f->engine, stream_index, d);
}
/* Flite_HTS_Engine_set_speed: set speech speed */
void Flite_HTS_Engine_set_speed(Flite_HTS_Engine * f, double d)
{
HTS_Engine_set_speed(&f->engine, d);
}
/* Flite_HTS_Engine_synthesize: synthesize speech */
HTS_Boolean Flite_HTS_Engine_synthesize(Flite_HTS_Engine * f, const char *txt, const char *wav)
{
int i;
FILE *fp;
cst_voice *v = NULL;
cst_utterance *u = NULL;
cst_item *s = NULL;
char **label_data = NULL;
int label_size = 0;
if (txt == NULL)
return FALSE;
/* text analysis part */
v = REGISTER_VOX(NULL);
if (v == NULL)
return FALSE;
u = flite_synth_text(txt, v);
if (u == NULL)
return FALSE;
for (s = relation_head(utt_relation(u, "Segment")); s; s = item_next(s))
label_size++;
if (label_size <= 0)
return FALSE;
label_data = (char **) calloc(label_size, sizeof(char *));
for (i = 0, s = relation_head(utt_relation(u, "Segment")); s; s = item_next(s), i++) {
label_data[i] = (char *) calloc(MAXBUFLEN, sizeof(char));
Flite_HTS_Engine_create_label(f, s, label_data[i]);
}
/* speech synthesis part */
HTS_Engine_synthesize_from_strings(&f->engine, label_data, label_size);
if (wav != NULL) {
fp = fopen(wav, "wb");
HTS_Engine_save_riff(&f->engine, fp);
fclose(fp);
}
HTS_Engine_refresh(&f->engine);
for (i = 0; i < label_size; i++)
free(label_data[i]);
free(label_data);
delete_utterance(u);
UNREGISTER_VOX(v);
return TRUE;
}
/* Flite_HTS_Engine_synthesize: synthesize speech */
HTS_Boolean Flite_HTS_Engine_synthesize_samples_mono16(Flite_HTS_Engine * f, const char *txt,
void** samples, int* sampleCount, int* sampleRate)
{
int i;
cst_voice *v = NULL;
cst_utterance *u = NULL;
cst_item *s = NULL;
char **label_data = NULL;
int label_size = 0;
short* samplePtr = NULL;
HTS_GStreamSet *gss;
if (txt == NULL)
return FALSE;
/* text analysis part */
v = REGISTER_VOX(NULL);
if (v == NULL)
return FALSE;
u = flite_synth_text(txt, v);
if (u == NULL)
return FALSE;
for (s = relation_head(utt_relation(u, "Segment")); s; s = item_next(s))
label_size++;
if (label_size <= 0)
return FALSE;
label_data = (char **) calloc(label_size, sizeof(char *));
for (i = 0, s = relation_head(utt_relation(u, "Segment")); s; s = item_next(s), i++) {
label_data[i] = (char *) calloc(MAXBUFLEN, sizeof(char));
Flite_HTS_Engine_create_label(f, s, label_data[i]);
}
/* speech synthesis part */
HTS_Engine_synthesize_from_strings(&f->engine, label_data, label_size);
gss = &f->engine.gss;
*sampleRate = f->engine.condition.sampling_frequency;
*sampleCount = HTS_GStreamSet_get_total_nsamples(gss);
*samples = malloc(sizeof(short) * *sampleCount);
samplePtr = *samples;
for (i=0; i < *sampleCount; ++i) {
*samplePtr++ = (short) HTS_GStreamSet_get_speech(gss, i);
}
HTS_Engine_refresh(&f->engine);
for (i = 0; i < label_size; i++)
free(label_data[i]);
free(label_data);
delete_utterance(u);
UNREGISTER_VOX(v);
return TRUE;
}
/* Flite_HTS_Engine_clear: free system */
void Flite_HTS_Engine_clear(Flite_HTS_Engine * f)
{
HTS_Engine_clear(&f->engine);
}
typedef struct _Flite_Utterance {
cst_voice *v;
cst_utterance *u;
int nitem;
cst_item **items;
} Flite_Utterance;
/* Flite_Text_Analyzer_initialize: initialize flite front-end */
void Flite_Text_Analyzer_initialize(Flite_Text_Analyzer * analyzer)
{
if (analyzer == NULL)
return;
analyzer->pointer = NULL;
}
/* Flite_Text_Analyzer_analysis: text analysis */
void Flite_Text_Analyzer_analysis(Flite_Text_Analyzer * analyzer, const char *text)
{
int i;
cst_item *s;
Flite_Utterance *fu;
if (analyzer == NULL || text == NULL)
return;
if (analyzer->pointer != NULL)
Flite_Text_Analyzer_clear(analyzer);
/* allocate */
fu = (Flite_Utterance *) malloc(sizeof(Flite_Utterance));
if (fu == NULL)
return;
/* create voice */
fu->v = REGISTER_VOX(NULL);
if (fu->v == NULL) {
free(fu);
return;
}
/* create utterance */
fu->u = flite_synth_text(text, fu->v);
if (fu->u == NULL) {
UNREGISTER_VOX(fu->v);
free(fu);
return;
}
/* count number of phonemes */
for (fu->nitem = 0, s = relation_head(utt_relation(fu->u, "Segment")); s; s = item_next(s), fu->nitem++);
if (fu->nitem == 0) {
delete_utterance(fu->u);
UNREGISTER_VOX(fu->v);
free(fu);
return;
}
/* save informations */
fu->items = (cst_item **) malloc(sizeof(cst_item *) * fu->nitem);
for (i = 0, s = relation_head(utt_relation(fu->u, "Segment")); s; s = item_next(s), i++)
fu->items[i] = s;
analyzer->pointer = (void *) fu;
}
/* Flite_Text_Analyzer_get_nphoneme_in_utterance: get number of phonemes */
int Flite_Text_Analyzer_get_nphoneme_in_utterance(Flite_Text_Analyzer * analyzer)
{
Flite_Utterance *fu;
if (analyzer == NULL || analyzer->pointer == NULL)
return 0;
fu = (Flite_Utterance *) analyzer->pointer;
return fu->nitem;
}
/* Flite_Text_Analyzer_get_phoneme: get phoneme identity */
const char *Flite_Text_Analyzer_get_phoneme(Flite_Text_Analyzer * analyzer, int phoneme_index)
{
Flite_Utterance *fu;
if (analyzer == NULL || analyzer->pointer == NULL)
return NULL;
fu = (Flite_Utterance *) analyzer->pointer;
if (phoneme_index < 0 || phoneme_index >= fu->nitem)
return NULL;
return ffeature_string(fu->items[phoneme_index], "name");
}
/* Flite_Text_Analyzer_get_word: get word */
const char *Flite_Text_Analyzer_get_word(Flite_Text_Analyzer * analyzer, int phoneme_index)
{
Flite_Utterance *fu;
if (analyzer == NULL || analyzer->pointer == NULL)
return NULL;
fu = (Flite_Utterance *) analyzer->pointer;
if (phoneme_index < 0 || phoneme_index >= fu->nitem)
return NULL;
return ffeature_string(fu->items[phoneme_index], "R:SylStructure.parent.parent.name");
}
/* Flite_Text_Analyzer_get_nphoneme_in_syllable: get number of phonemes in syllable */
int Flite_Text_Analyzer_get_nphoneme_in_syllable(Flite_Text_Analyzer * analyzer, int phoneme_index)
{
Flite_Utterance *fu;
if (analyzer == NULL || analyzer->pointer == NULL)
return 0;
fu = (Flite_Utterance *) analyzer->pointer;
if (phoneme_index < 0 || phoneme_index >= fu->nitem)
return 0;
return ffeature_int(fu->items[phoneme_index], "R:SylStructure.parent.R:Syllable.syl_numphones");
}
/* Flite_Text_Analayzer_get_nsyllable_in_word: get number of syllables in word */
int Flite_Text_Analyzer_get_nsyllable_in_word(Flite_Text_Analyzer * analyzer, int phoneme_index)
{
Flite_Utterance *fu;
if (analyzer == NULL || analyzer->pointer == NULL)
return 0;
fu = (Flite_Utterance *) analyzer->pointer;
if (phoneme_index < 0 || phoneme_index >= fu->nitem)
return 0;
return ffeature_int(fu->items[phoneme_index], "R:SylStructure.parent.parent.R:Word.word_numsyls");
}
/* Flite_Text_Analyzer_get_nword_in_phrase: get number of words in phrase */
int Flite_Text_Analyzer_get_nword_in_phrase(Flite_Text_Analyzer * analyzer, int phoneme_index)
{
Flite_Utterance *fu;
if (analyzer == NULL || analyzer->pointer == NULL)
return 0;
fu = (Flite_Utterance *) analyzer->pointer;
if (phoneme_index < 0 || phoneme_index >= fu->nitem)
return 0;
return ffeature_int(fu->items[phoneme_index], "R:SylStructure.parent.parent.R:Phrase.parent.lisp_num_words_in_phrase");
}
/* Flite_Text_Analyzer_get_nphrase_in_utterance: get number of phrases in utterance */
int Flite_Text_Analyzer_get_nphrase_in_utterance(Flite_Text_Analyzer * analyzer, int phoneme_index)
{
Flite_Utterance *fu;
if (analyzer == NULL || analyzer->pointer == NULL)
return 0;
fu = (Flite_Utterance *) analyzer->pointer;
if (phoneme_index < 0 || phoneme_index >= fu->nitem)
return 0;
return ffeature_int(fu->items[phoneme_index], "R:SylStructure.parent.parent.R:Phrase.parent.lisp_total_phrases");
}
/* Flite_Text_Analyzer_get_accent: get accent */
int Flite_Text_Analyzer_get_accent(Flite_Text_Analyzer * analyzer, int phoneme_index)
{
Flite_Utterance *fu;
if (analyzer == NULL || analyzer->pointer == NULL)
return 0;
fu = (Flite_Utterance *) analyzer->pointer;
if (phoneme_index < 0 || phoneme_index >= fu->nitem)
return 0;
return ffeature_int(fu->items[phoneme_index], "R:SylStructure.parent.R:Syllable.accented");
}
/* Flite_Text_Analyzer_get_stress: get stress */
int Flite_Text_Analyzer_get_stress(Flite_Text_Analyzer * analyzer, int phoneme_index)
{
Flite_Utterance *fu;
if (analyzer == NULL || analyzer->pointer == NULL)
return 0;
fu = (Flite_Utterance *) analyzer->pointer;
if (phoneme_index < 0 || phoneme_index >= fu->nitem)
return 0;
return ffeature_int(fu->items[phoneme_index], "R:SylStructure.parent.R:Syllable.stress");
}
/* Flite_Text_Analyzer_clear: finalize flite front-end */
void Flite_Text_Analyzer_clear(Flite_Text_Analyzer * analyzer)
{
Flite_Utterance *fu;
if (analyzer == NULL || analyzer->pointer == NULL)
return;
fu = (Flite_Utterance *) analyzer->pointer;
if (fu->items != NULL)
free(fu->items);
if (fu->u != NULL)
delete_utterance(fu->u);
if (fu->v != NULL)
UNREGISTER_VOX(fu->v);
free(fu);
analyzer->pointer = NULL;
}