Update app.py

app.py

@@ -69,23 +69,22 @@ async def edge_tts_engine(text, voice, rate, pitch):
 # -----------------------------
 
 def piper_engine_wrapper(text, rate, pitch):
-
     if not text.strip():
         return None, "Please enter text."
 
-    # Emotion mapping
+    # Map sliders to speed / pitch
     speed = 1.0 + rate / 100
     pitch_scale = 1.0 + pitch / 50
 
+    # Call PiperEngine
     audio = piper_engine.synthesize(
         text=text,
         speed=speed,
-        pitch=pitch_scale,
+        pitch=pitch_scale
     )
 
     return audio, None
-
-
+    
 # -----------------------------
 # Unified Interface
 # -----------------------------