Multiple Exponential Sweep Method for Fast Measurement of Head-Related Transfer Functions

Majdak P, Balazs P, Laback B. Multiple Exponential Sweep Method for Fast Measurement of Head-Related Transfer Functions. J Audio Eng Soc. 2007;55(7/8):623-637. Available from: https://aes.org/publications/elibrary-page/?id=14190

@article{Majdak2007_14190,
  author = {Majdak, Piotr and Balazs, Peter and Laback, Bernhard},
  title = {{Multiple Exponential Sweep Method for Fast Measurement of Head-Related Transfer Functions}},
  journal = {Journal of the Audio Engineering Society},
  volume = {55},
  number = {7/8},
  pages = {623--637},
  year = {2007},
  month = jul,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14190}
}

TY  - JOUR
TI  - Multiple Exponential Sweep Method for Fast Measurement of Head-Related Transfer Functions
AU  - Majdak, Piotr
AU  - Balazs, Peter
AU  - Laback, Bernhard
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 55
IS  - 7/8
SP  - 623
EP  - 637
PY  - 2007
DA  - 2007/07/06
UR  - https://aes.org/publications/elibrary-page/?id=14190
PB  - Audio Engineering Society
LA  - en
AB  - Presenting sounds in virtual environments requires filtering free-field signals with head-related transfer functions (HRTF). HRTFs describe the filtering effects of pinna, head, and torso measured in the ear canal of a subject. The measurement of HRTFs for many positions in space is a time-consuming procedure. To speed up the HRTF measurement, the multiple exponential sweep method (MESM) was developed. MESM speeds up the measurement by overlapping sweeps in an optimized way and retrieves the impulse responses of the measured systems. MESM and its parameter optimization are described. As an example of an application of MESM, the measurement duration of an HRTF set with 1550 positions is compared to the unoptimized method. Using MESM, the measurement duration could be reduced by a factor of four without a reduction of the signal-to-noise ratio.
ER  -