Table 4 Immersion indicators

Sound: (n = 8)

Sounds of cities (e.g. traffic and noise)

[25,26,27, 47]

Sounds of nature (e.g. birds and waterfalls)

[52]

Voices of other people passing by

[50]

Unspecified

[48, 55]

Frame rate

Higher frame rate means more images are displayed, resulting in a smoother VR experience

[46]