Update app.py

app.py

@@ -72,8 +72,8 @@ def process_audio(audio):
 def extract_audio_from_video(video_file):
     try:
         audio = AudioSegment.from_file(video_file)
-        audio_path = "extracted_audio.wav"
-        audio.export(audio_path, format="wav")
+        audio_path = "extracted_audio.mp3"
+        audio.export(audio_path, format="mp3")
         return audio_path, None
     except Exception as e:
         return None, f"Памылка пры выдзяленні аўдыі з відэафайла: {str(e)}"