Fixed the datatypes

banc-trawsgrifiadau-bangor.py

@@ -26,9 +26,9 @@ class BancTrawsgrifiadauBangor(datasets.GeneratorBasedBuilder):
         features = datasets.Features(
             {
                 "audio_filename": datasets.Value("string"),
-                "audio_filesize": datasets.Value("string"),
+                "audio_filesize": datasets.Value("int64"),
                 "transcript": datasets.Value("string"),
-                "duration": datasets.Value("int64"),
+                "duration": datasets.Value("duration[64]"),
                 "audio": datasets.features.Audio(sampling_rate=16_000)
                 # These are the features of your dataset like images, labels ...
             }