static int
acmod_init_am(acmod_t *acmod)
{
char const *mdeffn, *tmatfn, *mllrfn, *hmmdir;
/* Read model definition. */
if ((mdeffn = cmd_ln_str_r(acmod->config, "-mdef")) == NULL) {
if ((hmmdir = cmd_ln_str_r(acmod->config, "-hmm")) == NULL)
E_ERROR("Acoustic model definition is not specified either "
"with -mdef option or with -hmm\n");
else
E_ERROR("Folder '%s' does not contain acoustic model "
"definition 'mdef'\n", hmmdir);
return -1;
}
if ((acmod->mdef = bin_mdef_read(acmod->config, mdeffn)) == NULL) {
E_ERROR("Failed to read acoustic model definition from %s\n", mdeffn);
return -1;
}
/* Read transition matrices. */
if ((tmatfn = cmd_ln_str_r(acmod->config, "-tmat")) == NULL) {
E_ERROR("No tmat file specified\n");
return -1;
}
acmod->tmat = tmat_init(tmatfn, acmod->lmath,
cmd_ln_float32_r(acmod->config, "-tmatfloor"),
TRUE);
/* Read the acoustic models. */
if ((cmd_ln_str_r(acmod->config, "-mean") == NULL)
|| (cmd_ln_str_r(acmod->config, "-var") == NULL)
|| (cmd_ln_str_r(acmod->config, "-tmat") == NULL)) {
E_ERROR("No mean/var/tmat files specified\n");
return -1;
}
if (cmd_ln_str_r(acmod->config, "-senmgau")) {
E_INFO("Using general multi-stream GMM computation\n");
acmod->mgau = ms_mgau_init(acmod, acmod->lmath, acmod->mdef);
if (acmod->mgau == NULL)
return -1;
}
else {
E_INFO("Attempting to use PTM computation module\n");
if ((acmod->mgau = ptm_mgau_init(acmod, acmod->mdef)) == NULL) {
E_INFO("Attempting to use semi-continuous computation module\n");
if ((acmod->mgau = s2_semi_mgau_init(acmod)) == NULL) {
E_INFO("Falling back to general multi-stream GMM computation\n");
acmod->mgau = ms_mgau_init(acmod, acmod->lmath, acmod->mdef);
if (acmod->mgau == NULL)
return -1;
}
}
}
/* If there is an MLLR transform, apply it. */
if ((mllrfn = cmd_ln_str_r(acmod->config, "-mllr"))) {
ps_mllr_t *mllr = ps_mllr_read(mllrfn);
if (mllr == NULL)
return -1;
acmod_update_mllr(acmod, mllr);
}
return 0;
}
ps_mllr_t *
ps_update_mllr(ps_decoder_t *ps, ps_mllr_t *mllr)
{
return acmod_update_mllr(ps->acmod, mllr);
}