Fix clone error

app.py

@@ -37,13 +37,17 @@ model = OmniVoice.from_pretrained(
 )
 
 
-def estimate_duration(text, ref_text=None, steps=32, **_):
+def estimate_duration(text, ref_audio=None, ref_text=None, steps=32, speed=1.0):
     """Declare only the GPU time we plausibly need. Saves visitor quota
-    and improves queue priority."""
+    and improves queue priority.
+
+    The signature must mirror the decorated function's parameters, because
+    ZeroGPU forwards the call's arguments here positionally.
+    """
     chars = len((text or "").strip())
     # OmniVoice is very fast on H200; the floor is startup overhead.
     seconds = 8 + (chars / 100.0) * 2.0 * (int(steps) / 32.0)
-    if ref_text is not None and not (ref_text or "").strip():
+    if not (ref_text or "").strip():
         seconds += 10  # Whisper transcription runs on GPU too
     return min(int(seconds), 60)