Update app.py

app.py

@@ -5,7 +5,7 @@ import tempfile
 api = TTS(model_name="voice_conversion_models/multilingual/vctk/freevc24")
 
 def greet(source, target):
-    path = tempfile.NamedTemporaryFile().name
+    path = tempfile.NamedTemporaryFile(prefix="bttm_", suffix=".wav").name
 
     print("adio", source, target, path)
     api.voice_conversion_to_file(source_wav=source, target_wav=target, file_path=path)