fix

deepspeech/exps/u2_kaldi/model.py

@@ -233,7 +233,7 @@ class U2Trainer(Trainer):
             batch_frames_inout=0,
             preprocess_conf=config.collator.augmentation_config,
             n_iter_processes=config.collator.num_workers,
-            subsampling_factor=0,
+            subsampling_factor=1,
             num_encs=1)
 
         self.valid_loader = BatchDataLoader(

deepspeech/frontend/augmentor/spec_augment.py

@@ -65,7 +65,6 @@ class SpecAugmentor(AugmentorBase):
         self.n_time_masks = n_time_masks
         self.p = p
 
-
         # adaptive SpecAugment
         self.adaptive_number_ratio = adaptive_number_ratio
         self.adaptive_size_ratio = adaptive_size_ratio