A Re-Examination of the S/N Question for Systems with Time Varying Gain or Frequency Response

Blesser BA, Ives F. A Re-Examination of the S/N Question for Systems with Time Varying Gain or Frequency Response. In: AES Convention 42. Audio Engineering Society; 1972. Paper 853. Available from: https://aes.org/publications/elibrary-page/?id=1801

@inproceedings{Blesser1972_1801,
  author = {Blesser, Barry A. and Ives, Fred},
  title = {{A Re-Examination of the S/N Question for Systems with Time Varying Gain or Frequency Response}},
  booktitle = {AES Convention 42},
  note = {Paper 853},
  year = {1972},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=1801}
}

TY  - CPAPER
TI  - A Re-Examination of the S/N Question for Systems with Time Varying Gain or Frequency Response
AU  - Blesser, Barry A.
AU  - Ives, Fred
T2  - AES Convention 42
M1  - Paper 853
PY  - 1972
DA  - 1972/05/06
UR  - https://aes.org/publications/elibrary-page/?id=1801
PB  - Audio Engineering Society
LA  - en
AB  - A new definition of S/N is proposed in order to evaluate systems whose noise is a function of the signal, such as compressors, expanders, and dynamic noise filters. This new definition defines S/N as the ratio of short-term average signal-to-noise, instead of the usual definition of the maximum signal to the noise in the absence of signal. A pilot psychophysical investigation shows that a system need have only 52 dB S/N in order for the noise to remain undetectable. For wide dynamic-range classical music this translates into a ratio of 79 dB using the classical definition. The data also predict the optimum compander characteristics for noise reduction systems.
ER  -