Update app.py

app.py

@@ -18,7 +18,7 @@ async def text_to_speech_edge(text, language_code):
 
     new_temp_path = tmp_path.replace(".mp3", ".wav")
     (
-    await ffmpeg.input(tmp_path)
+    ffmpeg.input(tmp_path)
     .output(new_temp_path)
     .run()
     )