Update app.py

app.py

@@ -286,7 +286,7 @@ def wave_header_chunk(frame_input=b"", channels=1, sample_width=2, sample_rate=2
 xtts_supported_languages=config.languages  
 def detect_language(prompt):
     # Fast language autodetection
-    if len(prompt)>15:
+    if len(prompt)>13:
         language_predicted=langid.classify(prompt)[0].strip() # strip need as there is space at end!
         if language_predicted == "zh": 
             #we use zh-cn on xtts