My wifi/Echo/Pulse smartpen makes noise when I write.
Normally the wifi/Echo/Pulse smartpen itself does not make a noise while writing. However, if held upside down or at a steep angle you may hear the smartpen tip "tap" or "rattle" against the smartpen base as you write.
This does not mean there is something wrong with the smartpen.
Try writing with the smartpen display facing away from your hand or try changing where you hold the smartpen (higher up on the smartpen base for example).
If you are hearing the smartpen "scratching" the paper when you are playing back an audio recording, you may have your audio recording set to "High". Try lowering the audio recording quality ( 20305 - How do I set my audio recording quality and sensitivity levels? ) or, if you have one, plug in the 3-D Stereo Headset ( 40000 - What is the Livescribe smartpen 3D recording headset? ) to record instead of using the microphone on the smartpen.