Update mg21_data.py

mg21_data.py

@@ -145,6 +145,11 @@ class MGDB2Dataset(datasets.GeneratorBasedBuilder):
             #file_contents = f.read()
             #print (file_contents)
             #f.close()
+
+            wav_list = []
+            for arc in wav_archive['train']:
+                for wav_name in absoluteFilePaths(dl_manager.extract(arc)):
+                    wav_list.append(wav_name)
             
             return [
             datasets.SplitGenerator(
@@ -172,7 +177,7 @@ class MGDB2Dataset(datasets.GeneratorBasedBuilder):
                 gen_kwargs={
                     "path_to_txt": train_dir + "/txt",
                     "path_to_wav": train_dir + "/wav",
-                    "wav_files": [absoluteFilePaths(dl_manager.extract(a))  for a in wav_archive['train']],
+                    "wav_files": wav_list,
                     "txt_files": absoluteFilePaths(dl_manager.extract(txt_archive['train'])),
                     "data_type":0,
                 },