A Respectable Single-Band Expander

Talbot DB. A Respectable Single-Band Expander. In: AES Convention 63. Audio Engineering Society; 1979. Paper 1487. Available from: https://aes.org/publications/elibrary-page/?id=2867

@inproceedings{Talbot1979_2867,
  author = {Talbot, Daniel B.},
  title = {{A Respectable Single-Band Expander}},
  booktitle = {AES Convention 63},
  note = {Paper 1487},
  year = {1979},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=2867}
}

TY  - CPAPER
TI  - A Respectable Single-Band Expander
AU  - Talbot, Daniel B.
T2  - AES Convention 63
M1  - Paper 1487
PY  - 1979
DA  - 1979/05/06
UR  - https://aes.org/publications/elibrary-page/?id=2867
PB  - Audio Engineering Society
LA  - en
AB  - Most single-band audio signal dynamic range expanders suffer from cross-modulation effects, insufficient "apparent" expansion, and/or stereo image shift, susceptibility to only a small range of frequencies or too broad a range of frequencies, and slow attack time. Also, most do not incorporate a sophisticated algorithm for attack and release behavior. The expander described here addresses all of the above problems using a combination of level detector sophistication (including infrasonic filters), proportional-plus-derivative attack behavior, and program-determined release rate. Also, stereo image shift is prevented by "gang"-ing the two channels, which are controlled by a single level detector.
ER  -