feat: use voice shaping parameter

src/robot_interface/core/config.py

@@ -118,11 +118,11 @@ class RobotConfig(object):
     """
     Configuration of Pepper-specific parameters, like speech pitch.
     
-    :ivar pitch: The relative pitch offset of Pepper's voice, in relation to its base pitch.
-    :vartype pitch: float
+    :ivar voice_shaping: Pepper's voice shape, a number between 50 and 150. Defaults to 100.
+    :vartype voice_shaping: int
     """
     def __init__(self, pitch=None):
-        self.pitch = get_config(pitch, "ROBOT__PITCH", 0.0, float)
+        self.voice_shaping = get_config(pitch, "ROBOT__VOICE_SHAPING", 100, int)
     
 
 class Settings(object):