서라운드 사운드
A headset is placed around the ears of a patient that allows for sound to be heard. Generally, full surround-sound is desirable as it gives the patient a sense of space. For example, if a virtual person standing in front of the patient was speaking, the voice would be clear and audible. However, if a virtual person was standing to the left or right of the patient, the sound would be much quieter and muffled. Surround sound aids in giving a lifelike feeling to the VR environment.