Variable-Octave Complex Smoothing

Bharitkar S. Variable-Octave Complex Smoothing. In: AES Convention 123. Audio Engineering Society; 2007. Paper 7264. Available from: https://aes.org/publications/elibrary-page/?id=14322

@inproceedings{Bharitkar2007_14322,
  author = {Bharitkar, Sunil},
  title = {{Variable-Octave Complex Smoothing}},
  booktitle = {AES Convention 123},
  note = {Paper 7264},
  year = {2007},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14322}
}

TY  - CPAPER
TI  - Variable-Octave Complex Smoothing
AU  - Bharitkar, Sunil
T2  - AES Convention 123
M1  - Paper 7264
PY  - 2007
DA  - 2007/10/06
UR  - https://aes.org/publications/elibrary-page/?id=14322
PB  - Audio Engineering Society
LA  - en
AB  - In this paper we present a technique for processing room responses using a variable-octave complex-domain (viz., time-domain) smoother. Traditional techniques for room response processing, for equalization and other applications such as auralization, have focussed on a constant-octave (e.g., 1/3 octave) and with magnitude domain smoothing of these room responses. However, recent research has shown that room responses need to be processed with a {\em high resolution especially in the low-frequency region} to characterize the discrete room modal structure as these are distinctly audible. Coupled this with the need for reducing the computational requirements associated with filters obtained from undesirable {\em over-fitting the high-frequency part} of the room response with such a high-Q complex-domain smoother, and knowledge of the fact that the auditory filters have wider bandwidth (viz., lower resolution) in the high-frequency part of the human hearing, the present paper proposes a variable-octave complex-domain smoothing. Thus this paper incorporates, simultaneously, the high low-frequency resolution requirement as well as the requirement of relatively lower-resolution fitting of the room response in the high-frequency part through a perceptually motivated approach.
ER  -