Human sound localization is remarkably accurate given it processes only two ear signals.

Evidence

The ability of humans to localize sound sources is surprisingly good, especially when you consider that it is based on real-time analysis of two signals entering the ear canals. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1423

Categorization

• CANDY: Nice counterintuitive conversation point about how much spatial information is extracted from just two microphones.
• XREF: connects to: Humans localize sound accurately using only two real-time ear signals; Single-ear listeners can still localize sound sources but with degraded accuracy — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1456; Two ears improve detection, localization, and masking resistance over one. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1596 (+1 more)

Broader Connections

• Humans localize sound accurately using only two real-time ear signals #corroborates (1.00)
• Single-ear listeners can still localize sound sources but with degraded accuracy #qualifies (0.85) — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1456
• Two ears improve detection, localization, and masking resistance over one. #expands (0.80) — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1596
• Monaural spectral cues alone permit sound localization with degraded accuracy #qualifies (0.80)