Phase delays beyond 180 degrees make direction judgments ambiguous

Evidence

When this phase shift is greater than π radians (180°), there will be an unresolvable ambiguity in the direction because there are two possible angles—one to the left and one to the right—that could cause such a phase shift. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 720

Categorization

• DEFINE: Clarifies why interaural phase delays fail as directional cues above 180 degrees.
• XREF: connects to: Interaural time delays alone cannot fully determine sound source direction — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 735; High-frequency tones produce ambiguous azimuthal localization due to phase wrapping. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1467

Broader Connections

• High-frequency tones produce ambiguous azimuthal localization due to phase wrapping. #exemplifies (0.85) — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1467
• Interaural time delays alone cannot fully determine sound source direction #expands (0.82) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 735