Sound’s wavelength determines whether it reflects off the head or diffracts around it

Evidence

In order to fully understand the mechanisms responsible for hearing with two ears, we must first discuss the relationship between the wavelength of sound (the distance sound travels in a single cycle) and the size of the human head. Any object within a sound field will disrupt that sound field; however, the relationship between the wavelength of sound and the size of that object is of critical importance. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1445

Categorization

• corroborated: 2 independent passages support this claim — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1445
• XREF: connects to: The head shadows and reflects sound to create level differences between the ears. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1433