A Noise-Reduction System: Dynamic Spectral Filtering

Ives FH. A Noise-Reduction System: Dynamic Spectral Filtering. J Audio Eng Soc. 1972;20(7):558-561. Available from: https://aes.org/publications/elibrary-page/?id=2048

@article{Ives1972_2048,
  author = {Ives, Fred H.},
  title = {{A Noise-Reduction System: Dynamic Spectral Filtering}},
  journal = {Journal of the Audio Engineering Society},
  volume = {20},
  number = {7},
  pages = {558--561},
  year = {1972},
  month = sep,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=2048}
}

TY  - JOUR
TI  - A Noise-Reduction System: Dynamic Spectral Filtering
AU  - Ives, Fred H.
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 20
IS  - 7
SP  - 558
EP  - 561
PY  - 1972
DA  - 1972/09/06
UR  - https://aes.org/publications/elibrary-page/?id=2048
PB  - Audio Engineering Society
LA  - en
AB  - A new method of audio noise reduction based on the -spectral derivative- instead of the usual -energy in a band- is proposed. The algorithm has been realized in a system utilizing dynamic filters to sense the upper corner of the audio spectrum and adjust the system to pass frequencies up to the corner. With the proper dynamics, the filter can pass the full bandwidth of the signal, suppress wide-band noise, and reduce the apparent noise with little perceived effect.
ER  -