int main(int argc, char **argv)
{
cst_wave *in, *out;
cst_val *files;
cst_features *args;
int i,j;
int w, a, t;
args = new_features();
files =
cst_args(argv,argc,
"usage: dcoffset_wave OPTIONS\n"
"Subtract window average from waveform\n"
"-i <string> Input waveform\n"
"-o <string> Output waveform\n"
"-w <int> Window size (in samples)\n",
args);
w = flite_get_param_int(args,"-w",20);
in = new_wave();
cst_wave_load_riff(in,flite_get_param_string(args,"-i","-"));
out = copy_wave(in);
for (i=0; i<=out->num_samples; i++)
{
for (t=a=0,j=i-w/2; j < i+w/2; j++)
{
if ((j > 0) && (j < out->num_samples))
{
t += 1;
a+=in->samples[j];
}
}
/* printf("%d %d %d %d %d\n",i,out->samples[i],a/t,t,out->samples[i]-a/t); */
out->samples[i] -= a/t;
}
cst_wave_save_riff(out,flite_get_param_string(args,"-o","-"));
return 0;
}
cst_voice *cst_cg_load_voice(const char *filename,
const cst_lang *lang_table)
{
cst_voice *vox;
cst_lexicon *lex = NULL;
int i, end_of_features;
const char *language;
const char *xname;
cst_cg_db *cg_db;
char* fname;
char* fval;
cst_file vd;
vd = cst_fopen(filename,CST_OPEN_READ | CST_OPEN_BINARY);
if (vd == NULL)
{
cst_errmsg("Error load voice: can't open file %s\n",filename);
return NULL;
}
if (cst_cg_read_header(vd) != 0)
{
cst_errmsg("Error load voice: %s does not have expected header\n",filename);
cst_fclose(vd);
return NULL;
}
vox = new_voice();
/* Read voice features from the external file */
/* Read until the feature is "end_of_features" */
fname="";
end_of_features = 0;
while (end_of_features == 0)
{
cst_read_voice_feature(vd,&fname, &fval);
if (cst_streq(fname,"end_of_features"))
end_of_features = 1;
else
{
xname = feat_own_string(vox->features,fname);
flite_feat_set_string(vox->features,xname, fval);
}
cst_free(fname);
cst_free(fval);
}
/* Load up cg_db from external file */
cg_db = cst_cg_load_db(vox,vd);
if (cg_db == NULL)
{
cst_fclose(vd);
return NULL;
}
/* Use the language feature to initialize the correct voice */
language = flite_get_param_string(vox->features, "language", "");
/* Search Lang table for lang_init() and lex_init(); */
for (i=0; lang_table[i].lang; i++)
{
if (cst_streq(language,lang_table[i].lang))
{
(lang_table[i].lang_init)(vox);
lex = (lang_table[i].lex_init)();
break;
}
}
if (lex == NULL)
{ /* Language is not supported */
/* Delete allocated memory in cg_db */
cst_cg_free_db(vd,cg_db);
cst_fclose(vd);
cst_errmsg("Error load voice: lang/lex %s not supported in this binary\n",language);
return NULL;
}
/* Things that weren't filled in already. */
vox->name = cg_db->name;
flite_feat_set_string(vox->features,"name",cg_db->name);
flite_feat_set_string(vox->features,"pathname",filename);
flite_feat_set(vox->features,"lexicon",lexicon_val(lex));
flite_feat_set(vox->features,"postlex_func",uttfunc_val(lex->postlex));
/* No standard segment durations are needed as its done at the */
/* HMM state level */
flite_feat_set_string(vox->features,"no_segment_duration_model","1");
flite_feat_set_string(vox->features,"no_f0_target_model","1");
/* Waveform synthesis */
flite_feat_set(vox->features,"wave_synth_func",uttfunc_val(&cg_synth));
flite_feat_set(vox->features,"cg_db",cg_db_val(cg_db));
flite_feat_set_int(vox->features,"sample_rate",cg_db->sample_rate);
cst_fclose(vd);
return vox;
}
