diff --git a/whisper/utils.py b/whisper/utils.py
index 9b9b13862..f4bc11474 100644
--- a/whisper/utils.py
+++ b/whisper/utils.py
@@ -3,7 +3,8 @@
 import re
 import sys
 import zlib
-from typing import Callable, List, Optional, TextIO
+from pathlib import Path
+from typing import Callable, List, Optional, TextIO, Union
 
 system_encoding = sys.getdefaultencoding()
 
@@ -89,16 +90,21 @@ def __init__(self, output_dir: str):
         self.output_dir = output_dir
 
     def __call__(
-        self, result: dict, audio_path: str, options: Optional[dict] = None, **kwargs
-    ):
-        audio_basename = os.path.basename(audio_path)
-        audio_basename = os.path.splitext(audio_basename)[0]
+        self,
+        result: dict,
+        audio_path: Union[str, Path],
+        options: Optional[dict] = None,
+        **kwargs,
+    ) -> str:
+        if not isinstance(audio_path, Path):
+            audio_path = Path(audio_path)
         output_path = os.path.join(
-            self.output_dir, audio_basename + "." + self.extension
+            self.output_dir, audio_path.with_suffix(self.extension).name
         )
 
         with open(output_path, "w", encoding="utf-8") as f:
             self.write_result(result, file=f, options=options, **kwargs)
+        return output_path
 
     def write_result(
         self, result: dict, file: TextIO, options: Optional[dict] = None, **kwargs