Update functions.py

functions.py

@@ -124,7 +124,7 @@ def get_yt_audio_dl(url):
         'format': 'bestaudio/best',
         'postprocessors': [{
             'key': 'FFmpegExtractAudio',
-            'preferredcodec': 'mp4',
+            'preferredcodec': 'mp3',
             'preferredquality': '192',
         }],
         'outtmpl': temp_audio_file,
@@ -138,7 +138,7 @@ def get_yt_audio_dl(url):
         ydl.download([url])
 
     #with open(temp_audio_file+'.mp3', 'rb') as file:
-    audio_file = os.path.join('output', 'audio.mp4')
+    audio_file = os.path.join('output', 'audio.mp3')
 
     return audio_file, title