bug fix for S4D

features_extractor.py

@@ -598,6 +598,7 @@ class FeaturesExtractor(object):
                 _, threshold_id = self._vad(None, energy[idx], None, None)
                 logging.info('show: ' + show + ' cluster: ' + _id + ' thr:' + str(threshold_id))
                 label_id = energy > threshold_id
+                label_id = label_id.ravel()
                 label[idx] = label_id[idx]
 
                 if not keep_all: