Fast measurement system for spatially continuous individual HRTFs

Pollow M, Masiero B, Dietrich P, Fels J, Vorländer M. Fast measurement system for spatially continuous individual HRTFs. In: AES Conference: UK 25th Conference: Spatial Audio in Today’s 3D World. Audio Engineering Society; 2012. Paper 05. Available from: https://aes.org/publications/elibrary-page/?id=18112

@inproceedings{Pollow2012_18112,
  author = {Pollow, Martin and Masiero, Bruno and Dietrich, Pascal and Fels, Janina and Vorländer, Michael},
  title = {{Fast measurement system for spatially continuous individual HRTFs}},
  booktitle = {AES Conference: UK 25th Conference: Spatial Audio in Today’s 3D World},
  note = {Paper 05},
  year = {2012},
  month = mar,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=18112}
}

TY  - CPAPER
TI  - Fast measurement system for spatially continuous individual HRTFs
AU  - Pollow, Martin
AU  - Masiero, Bruno
AU  - Dietrich, Pascal
AU  - Fels, Janina
AU  - Vorländer, Michael
T2  - AES Conference: UK 25th Conference: Spatial Audio in Today’s 3D World
M1  - Paper 05
PY  - 2012
DA  - 2012/03/06
UR  - https://aes.org/publications/elibrary-page/?id=18112
PB  - Audio Engineering Society
LA  - en
AB  - The head-related transfer functions (HRTFs) play a major role for the auralization of virtual sources around the listener as well as for cross-talk cancellation systems. Generic HRTFs of artificial heads are often used, as measuring individuals using a high spatial resolution is usually time-consuming and tedious. A fast measurement system for HRTFs is presented, consisting of a circular arc of 40 broadband loudspeakers placed on the elevations of a Gaussian grid. By rotating the subject horizontally (either in discrete steps or continuously) HRTFs can be acquired on a spherical surface. Using an optimized version of the multiple exponential sweep technique [Majdak 2007], thousands of discrete points can be measured within a few minutes making the use of individual HRTFs well feasible in practice. This measurement data is used to obtain a spatially continuous representation of the HRTFs by using a reciprocal formulation as modal components of an outgoing spherical wave. The assumed acoustical centre of the wave is varied in order to get a best possible reconstruction for a finite order of spherical harmonics coefficients. This results in a setup independent and compact description of individual HRTFs, allowing to evaluate the binaural transfer functions for any point in near-field or far-field.
ER  -