Noise

Hi
After Recording Data with Eyetribe Developer kit Eye Tracker I Used fft Function to Check Noises.
There was Huge Noises in First 5 Frames of Every Trials.
How Can I fix it?
Thanks
After Recording Data with Eyetribe Developer kit Eye Tracker I Used fft Function to Check Noises.
There was Huge Noises in First 5 Frames of Every Trials.
How Can I fix it?
Thanks