Spectral Delay Filters

Välimäki V, Abel JS, Smith JO. Spectral Delay Filters. J Audio Eng Soc. 2009;57(7/8):521-531. Available from: https://aes.org/publications/elibrary-page/?id=14832

@article{Valimaki2009_14832,
  author = {Välimäki, Vesa and Abel, Jonathan S. and Smith, Julius O.},
  title = {{Spectral Delay Filters}},
  journal = {Journal of the Audio Engineering Society},
  volume = {57},
  number = {7/8},
  pages = {521--531},
  year = {2009},
  month = jul,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14832}
}

TY  - JOUR
TI  - Spectral Delay Filters
AU  - Välimäki, Vesa
AU  - Abel, Jonathan S.
AU  - Smith, Julius O.
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 57
IS  - 7/8
SP  - 521
EP  - 531
PY  - 2009
DA  - 2009/07/06
UR  - https://aes.org/publications/elibrary-page/?id=14832
PB  - Audio Engineering Society
LA  - en
AB  - High- and low-order all-pass networks have been used extensively in a wide variety of audio applications, such as reverberators, because they change the phase and temporal structure without changing the frequency content. Each frequency region experiences an independent delay. In this paper the authors explore how these properties can be used to create unusual special effects. The perceived timbre is changed even though the frequency content remains unchanged. By cascading a large number of such filters, a chirplike sound can be created, which can be equalized and mixed with the original. This is yet another form of sound synthesis.
ER  -