Wiener Filtering for Anechoic Transfer Function Measurement in Acoustics

Dadic M. Wiener Filtering for Anechoic Transfer Function Measurement in Acoustics. J Audio Eng Soc. 2013;61(7/8):573-578. Available from: https://aes.org/publications/elibrary-page/?id=16872

@article{Dadic2013_16872,
  author = {Dadic, Martin},
  title = {{Wiener Filtering for Anechoic Transfer Function Measurement in Acoustics}},
  journal = {Journal of the Audio Engineering Society},
  volume = {61},
  number = {7/8},
  pages = {573--578},
  year = {2013},
  month = jul,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16872}
}

TY  - JOUR
TI  - Wiener Filtering for Anechoic Transfer Function Measurement in Acoustics
AU  - Dadic, Martin
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 61
IS  - 7/8
SP  - 573
EP  - 578
PY  - 2013
DA  - 2013/07/06
UR  - https://aes.org/publications/elibrary-page/?id=16872
PB  - Audio Engineering Society
LA  - en
AB  - Deriving the transfer function of electroacoustical systems in a normal reverberant environment is usually based on frequency-domain methods that compute the anechoic spectra of direct and early sounds. Unlike time-delay spectrometry and time-gating frequency analysis, this paper proposes a Wiener-Hopf solution for time-gating in anechoic transfer-function measurements. The procedure eliminates scattered or reflected rays. Compared to methods based on the discrete Fourier transform, this approach allows for nonuniform frequency-domain sampling when the system’s magnitude and/or phase responses exhibit large variations. Since the approach relies only on frequency-domain measurements and simple time-gating, it does not require complicated and expensive equipment such as pulse generators and fast sampling oscilloscopes.
ER  -