/* HTS_Engine_create_gstream: synthesis speech */
void HTS_Engine_create_gstream(HTS_Engine * engine)
{
HTS_GStreamSet_create(&engine->gss, &engine->pss, engine->global.stage,
engine->global.use_log_gain,
engine->global.sampling_rate, engine->global.fperiod,
engine->global.alpha, engine->global.beta,
engine->global.audio_buff_size);
}
/* HTS_Engine_synthesize_from_strings: synthesize speech from strings */
HTS_Boolean HTS_Engine_synthesize_from_strings(HTS_Engine * engine, char **lines, size_t num_lines)
{
size_t i;
double f;
HTS_Engine_refresh(engine);
// Generate state sequence
if (HTS_SStreamSet_create(&engine->sss, &engine->ms, lines, num_lines, engine->condition.speed) != TRUE) {
HTS_Engine_refresh(engine);
return FALSE;
}
if (engine->condition.additional_half_tone != 0.0) {
for (i = 0; i < HTS_SStreamSet_get_total_state(&engine->sss); i++) {
f = HTS_SStreamSet_get_mean(&engine->sss, 1, i, 0);
f += engine->condition.additional_half_tone * HALF_TONE;
if (f < MIN_LF0)
f = MIN_LF0;
else if (f > MAX_LF0)
f = MAX_LF0;
HTS_SStreamSet_set_mean(&engine->sss, 1, i, 0, f);
}
}
// Generate parameter sequence
if (HTS_PStreamSet_create(&engine->pss, &engine->sss, engine->condition.msd_threshold) != TRUE) {
HTS_Engine_refresh(engine);
return FALSE;
}
// Free state sequence
HTS_SStreamSet_clear(&engine->sss);
// Generate sound sample sequence
if (HTS_GStreamSet_create(&engine->gss, &engine->pss, engine->condition.sampling_frequency,
engine->condition.fperiod, engine->condition.alpha,
engine->condition.beta) != TRUE) {
HTS_Engine_refresh(engine);
return FALSE;
}
return TRUE;
}
/* HTS_Engine_generate_sample_sequence: generate sample sequence (3rd synthesis step) */
HTS_Boolean HTS_Engine_generate_sample_sequence(HTS_Engine * engine)
{
return HTS_GStreamSet_create(&engine->gss, &engine->pss, engine->condition.stage, engine->condition.use_log_gain, engine->condition.sampling_frequency, engine->condition.fperiod, engine->condition.alpha, engine->condition.beta, &engine->condition.stop, engine->condition.volume, engine->condition.audio_buff_size > 0 ? &engine->audio : NULL);
}
