Reliable Detection of Acoustically Coupled DTMF Signals

Hahn JH. Reliable Detection of Acoustically Coupled DTMF Signals. J Audio Eng Soc. 1991;39(12):956-960. Available from: https://aes.org/publications/elibrary-page/?id=5951

@article{Hahn1991_5951,
  author = {Hahn, James H.},
  title = {{Reliable Detection of Acoustically Coupled DTMF Signals}},
  journal = {Journal of the Audio Engineering Society},
  volume = {39},
  number = {12},
  pages = {956--960},
  year = {1991},
  month = dec,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=5951}
}

TY  - JOUR
TI  - Reliable Detection of Acoustically Coupled DTMF Signals
AU  - Hahn, James H.
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 39
IS  - 12
SP  - 956
EP  - 960
PY  - 1991
DA  - 1991/12/06
UR  - https://aes.org/publications/elibrary-page/?id=5951
PB  - Audio Engineering Society
LA  - en
AB  - Dual-tone multi-frequency (DTMF) signaling has become a widespread cost-effective method for low-volume data communication. DTMF receivers used in such applications are generally adequate if input signals are hard wired to the telephone line. However, when the signals are coupled acoustically to the telephone, standard receivers perform poorly. A previous publication examined the special problems involved in receiving acoustically coupled DTMF signals. It is shown how the principles developed in that publication can be applied to the design of a receiver optimized for acoustically coupled signals.
ER  -