Two Alternative Minimum-Phase Filters Tested Perceptually

Mores R, Hendrych R. Two Alternative Minimum-Phase Filters Tested Perceptually. In: AES Convention 140. Audio Engineering Society; 2016.pp. 9554:1-6. Available from: https://aes.org/publications/elibrary-page/?id=18252

@inproceedings{Mores2016_18252,
  author = {Mores, Robert and Hendrych, Ralf},
  title = {{Two Alternative Minimum-Phase Filters Tested Perceptually}},
  booktitle = {AES Convention 140},
  pages = {9554:1-6},
  url = {https://aes.org/publications/elibrary-page/?id=18252},
  year = {2016},
  month = may,
  publisher = {Audio Engineering Society}
}

TY  - CPAPER
TI  - Two Alternative Minimum-Phase Filters Tested Perceptually
AU  - Mores, Robert
AU  - Hendrych, Ralf
T2  - AES Convention 140
SP  - 1
EP  - 6
M1  - Paper 9554
PY  - 2016
DA  - 2016/05/06
UR  - https://aes.org/publications/elibrary-page/?id=18252
PB  - Audio Engineering Society
LA  - en
AB  - A widely used method for designing minimum phase filters is based on the real cepstrum (Oppenheim, 1975). An alternative method is proposed for symmetric FIR filters that flips the filter’s “left side” around the central coefficient to the “right side” using a sinus ramp of perceptually irrelevant duration. The resulting phase is nearly minimal and nearly linear. The method is applied to impulse responses. Perception tests use original sound samples (A), samples processed by real-cepstrum-based minimum phase filters (B), and samples processed by the proposed method (C). The tests reveal that for impulsive sound samples the perceived dissimilarity between A and C is smaller than the dissimilarity between A and B suggesting that the alternative method has some potential for sound processing.
ER  -