diff --git a/sms_wsj/database/write_files.py b/sms_wsj/database/write_files.py
index b3e1f4f..2afb4d1 100644
--- a/sms_wsj/database/write_files.py
+++ b/sms_wsj/database/write_files.py
@@ -63,7 +63,11 @@ def audio_read(example):
 
             with soundfile.SoundFile(wav_file, mode='r') as f:
                 audio_data.append(f.read().T)
-        example['audio_data'][audio_key] = np.array(audio_data)
+        try:
+            example['audio_data'][audio_key] = np.array(audio_data)
+        except ValueError:
+            example['audio_data'][audio_key] = np.array(audio_data, dtype="object")
+
     return example