diff options
Diffstat (limited to 'speech_utils')
| -rw-r--r-- | speech_utils/init.lua | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/speech_utils/init.lua b/speech_utils/init.lua index 87129af..3d1a470 100644 --- a/speech_utils/init.lua +++ b/speech_utils/init.lua @@ -1,13 +1,19 @@ nerv.speech_utils = {} function nerv.speech_utils.global_transf(feat_utter, global_transf, frm_ext, gconf) - local step = frm_ext * 2 + 1 - -- expand the feature - local expanded = gconf.cumat_type(feat_utter:nrow(), feat_utter:ncol() * step) - expanded:expand_frm(gconf.cumat_type.new_from_host(feat_utter), frm_ext) - -- rearrange the feature (``transpose'' operation in TNet) - local rearranged = expanded:create() - rearranged:rearrange_frm(expanded, step) + local rearranged + feat_utter = gconf.cumat_type.new_from_host(feat_utter) + if frm_ext > 0 then + local step = frm_ext * 2 + 1 + -- expand the feature + local expanded = gconf.cumat_type(feat_utter:nrow(), feat_utter:ncol() * step) + expanded:expand_frm(feat_utter, frm_ext) + -- rearrange the feature (``transpose'' operation in TNet) + rearranged = expanded:create() + rearranged:rearrange_frm(expanded, step) + else + rearranged = feat_utter + end -- prepare for transf local input = {rearranged} local output = {rearranged:create()} |