Near-Field Compensation for HRTF Processing

Romblom D, Cook B. Near-Field Compensation for HRTF Processing. In: AES Convention 125. Audio Engineering Society; 2008. Paper 7611. Available from: https://aes.org/publications/elibrary-page/?id=14762

@inproceedings{Romblom2008_14762,
  author = {Romblom, David and Cook, Bryan},
  title = {{Near-Field Compensation for HRTF Processing}},
  booktitle = {AES Convention 125},
  note = {Paper 7611},
  year = {2008},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14762}
}

TY  - CPAPER
TI  - Near-Field Compensation for HRTF Processing
AU  - Romblom, David
AU  - Cook, Bryan
T2  - AES Convention 125
M1  - Paper 7611
PY  - 2008
DA  - 2008/10/06
UR  - https://aes.org/publications/elibrary-page/?id=14762
PB  - Audio Engineering Society
LA  - en
AB  - It is difficult to present near-field virtual audio displays using available HRTF filters, as most existing databases are measured at a single distance in the far-field of the listener’s head. Measuring near-field data is possible, but would quickly become tiresome due to the large number of distances required to simulate sources moving close to the head. For applications requiring a compelling near-field virtual audio display, one could compensate the far-field HRTF filters with a scheme based on 1/r spreading roll off. However, this would not account for spectral differences that occur in the near-field. Using difference filters based on a spherical head model [1], as well as a geometrically accurate HRTF lookup scheme [2], we are able to compensate existing data and present a convincing virtual audio display for near field distances.
ER  -