Update app.py

app.py

@@ -99,7 +99,7 @@ def download_youtube_clip(
     end_time,
     output_filename,
     num_attempts=5,
-    url_base="",
+    url_base="https://www.youtube.com/watch?v=",
     quiet=False,
     force=False,
 ):
@@ -184,7 +184,7 @@ def predict_song_from_yt(
         end,
         "track.wav",
         force=True,
-        url_base="",
+        url_base="" if ytid_or_url.startswith("http") else "https://www.youtube.com/watch?v=",
     )
     vox_wav, inst_wav = extract_vocal_demucs(demucs_model, original_track_filepath)
     if transpose != 0:
@@ -205,7 +205,6 @@ def predict_song_from_yt(
     full_song = inst_wav + np.expand_dims(cloned_vox, 1)
     return (model.target_sample, full_song), (model.target_sample, cloned_vox)
 
-
 SPACE_ID = "nateraw/voice-cloning"
 description = f"""