Update app.py

app.py

@@ -573,14 +573,13 @@ def calibrated_speed(text, desired_duration):
     cps = char_count / desired_duration  # characters per second
 
     # Truncated linear mapping
-    if cps < 10:
+    if cps < 14:
         return 1.0
-    elif cps > 25:
-        return 1.6
+    elif cps > 30:
+        return 2
     else:
-        # Linearly scale between cps 10 -> 25 and speed 1.0 -> 1.3
-        slope = (1.6 - 1.0) / (25 - 10)
-        return 1.0 + slope * (cps - 10)
+        slope = (2 - 1.0) / (30 - 14)
+        return 1.0 + slope * (cps - 14)
 
 
 def upload_and_manage(file, target_language, mode="transcription"):