meta_path local variable error fix

rixvox.py

@@ -179,7 +179,7 @@ class Rixvox(datasets.GeneratorBasedBuilder):
 
             df_meta = pd.concat(data)
         else:
-            df_meta = pd.read_parquet(meta_path[self.config.name])
+            df_meta = pd.read_parquet(meta_paths[self.config.name])
 
         df_meta = df_meta.set_index("filename")