Control device for spatial sound effect of headphone and control method thereof

A control device for spatial sound effect of a headphone, comprising:

• a receiving unit, configured to receive an original sound signal;
• a head tracking unit, configured to track a head direction;
• at least three equalizers, configured to process the original sound signal according to the head direction to obtain at least a first adjusted sound signal, a second adjusted sound signal, and a third adjusted sound signal, wherein the first adjusted sound signal corresponds to the head direction, the second adjusted sound signal corresponds to a first expected rotation direction, and the third adjusted sound signal corresponds to a second expected rotation direction;
• a switch, configured to output the first adjusted sound signal according to the head direction;
• and
• a controller, configured to determine whether the head direction has changed to the first expected rotation direction or the second expected rotation direction;
• wherein if the head direction has changed to the first expected rotation direction, the controller controls the switch to output the second adjusted sound signal;
• and if the head direction has changed to the second expected rotation direction, the controller controls the switch to output the third adjusted sound signal.