Virtual surround works because the listenerās head stays fixed while watching a screen
Evidence
However, this technique is used in some proprietary spatial-enhancement systems. It has also been used in television and computer game sound reproduction to provide āvirtual surroundā by using the HRTFs to synthesize the surround speakers from the forward stereo ones. In this situation, not only are the speaker locations known, as they are built into the set, but the head is effectively clamped in position due to the need to watch the picture. In this sort of situation, the technique can be very effective. ā David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 2255
Categorization
- SEED: Angle: āthe picture is the clampā ā how screens quietly serve as head-stabilizers that make immersive audio illusions affordable for consumer hardware.
- XREF: Connects to prior chaptersā treatment of HRTF-based binaural synthesis and localization cues. ā connects to: VR with synchronized binaural audio can deliver presence for live events; Interaction with the user is what distinguishes virtual reality audio from traditional reproduction; Head related transfer functions anchor sounds to visual cues in VR (+3 more)
- corroborated: 2 independent passages support this claim ā David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 2255
Broader Connections
- Static binaural images sound inside the head until head movement is tracked
#expands(0.78) - Head related transfer functions anchor sounds to visual cues in VR
#expands(0.75) - Seeing a known loudspeaker erases sensitivity to room-position changes
#exemplifies(0.72) - Two-channel stereo only works for one centrally seated listener
#exemplifies(0.72) ā , Toole, Floyd E - Sound reproduction-ā¦, 69