Head-related transfer functions encode all body-induced spectral and temporal sound changes
Evidence
The pinnae and head are not the only aspect of human anatomy that influence the sound received by the two ears, and any component of the body in the sound field contributes to localization abilities. Without having to characterize the relative contributions of all potential obstacles to the sound source, the spectral and temporal changes can be captured by a head-related transfer function (HRTF), a three-dimensional function that codes for the acoustic changes that occur when sounds are presented at different locations with respect to the body. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1534
Categorization
- DEFINE: Defines HRTF as the unifying three-dimensional function for body-influenced acoustic changes.
- corroborated: 3 independent passages support this claim — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1534
- XREF: connects to: Head-motion-dependent sound changes are required for external sound localization; Large diverse datasets of human HRTF and ear geometry are now being collected; HRTFs encode direction through head, ear, and torso shape filtering (+5 more)
Broader Connections
- Head-related transfer functions encode how the head and pinna shape spatial hearing
#expands(0.95) - Head-related transfer functions are measured with in-ear microphones in anechoic chambers
#expands(0.80) — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1410 - Head shading creates interaural level differences used for sound localization
#exemplifies(0.80) — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 726