Update app.py

app.py

@@ -11,6 +11,7 @@ description = "A simple demo for Wav2Lip Official Repo"
 article = "Official Repo: https://github.com/Rudrabha/Wav2Lip"
 
 def inference(face, audio):
+    os.system("echo $face $audio")
     os.system("python inference.py --checkpoint_path ./wav2lip.pth --face {} --audio {}".format(face, audio))
 
     return "./results/result_voice.mp4"