Head movement and pinna shape resolve cone-of-confusion ambiguities

Evidence

Head movements have long been assumed to be important to satisfactory externalization in binaural headphone reproduction (Toole, 1970). The brain protests when the musicians and the performance venue move with the head. But mismatched HRTFs are a logical contributing factor to the perceptual error. — Toole, Floyd E, Sound reproduction- the acoustics and…, 290 (#corroborates, via linked claim)

Categorization

• XREF: connects to: Head symmetry creates a cone of directions where sound localization is ambiguous; In-head localization stems from mismatched HRTFs and missing head tracking; Adults relearn spatial localization within six weeks of altered pinnae (+6 more)

Related

• Head symmetry creates a cone of directions where sound localization is ambiguous (similarity 0.91)
• Head orientation is necessary because interaural level differences plateau off-midline (similarity 0.90)
• Head movement resolves directional ambiguity and explains headphone sounds seeming internal (similarity 0.89)
• In-head localization stems from mismatched HRTFs and missing head tracking (similarity 0.89)
• Head-motion-dependent sound changes are required for external sound localization (similarity 0.87)
• Headphone sounds are usually lateralized inside the head. (similarity 0.86)
• Head movements and pinna shape resolve ambiguous sound localization (similarity 0.86)
• Lack of head-tracking dynamic cues causes headphone audio to sound internalized (similarity 0.86)
• Head-related transfer functions encode how the head and pinna shape spatial hearing (similarity 0.85)
• The cone of confusion makes identical ITDs map to many indistinguishable locations (similarity 0.85)
• Dynamic head tracking restores externalized sound localization in binaural reproduction. (similarity 0.85)
• Head movements resolve front-back ambiguity by creating direction-specific binaural cue changes (similarity 0.84)
• Amplitude panning produces equivalent spatial perception across headphones and loudspeakers. (similarity 0.84)
• HRTFs encode direction through head, ear, and torso shape filtering (similarity 0.84)
• The outer ear’s resonant shapes enable front-back sound localization (similarity 0.83)

Broader Connections

• Head movement resolves directional ambiguity and explains headphone sounds seeming internal #corroborates (0.92) — Toole, Floyd E, Sound reproduction- the acoustics and…, 290
• Head-related transfer functions encode how the head and pinna shape spatial hearing #expands (0.90)
• Individual pinnae shapes make spatial hearing uniquely personal and learned #expands (0.82)
• Head separation between ears produces arrival-time and intensity cues for direction #exemplifies (0.78)
• Head orientation is necessary because interaural level differences plateau off-midline #qualifies (0.75)