A Five-Band Companded Technique for Converting Telephone Quality to Broadcast Quality Using Two Voice-Grade Phone Lines

Talbot DB, Cheney JF. A Five-Band Companded Technique for Converting Telephone Quality to Broadcast Quality Using Two Voice-Grade Phone Lines. J Audio Eng Soc. 1986;34(10):804-811. Available from: https://aes.org/publications/elibrary-page/?id=5241

@article{Talbot1986_5241,
  author = {Talbot, Daniel B. and Cheney, John F.},
  title = {{A Five-Band Companded Technique for Converting Telephone Quality to Broadcast Quality Using Two Voice-Grade Phone Lines}},
  journal = {Journal of the Audio Engineering Society},
  volume = {34},
  number = {10},
  pages = {804--811},
  year = {1986},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=5241}
}

TY  - JOUR
TI  - A Five-Band Companded Technique for Converting Telephone Quality to Broadcast Quality Using Two Voice-Grade Phone Lines
AU  - Talbot, Daniel B.
AU  - Cheney, John F.
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 34
IS  - 10
SP  - 804
EP  - 811
PY  - 1986
DA  - 1986/10/06
UR  - https://aes.org/publications/elibrary-page/?id=5241
PB  - Audio Engineering Society
LA  - en
AB  - A technique has been developed whereby two voice-grade telephone lines can be used to send and receive broadcast-quality audio. The technique involves five-band compression, shifting the frequency bands of the program during transmission to occupy two 3-kHz-bandwidth phone lines, then "unshifting" the received phone-line signals, and finally dynamic range expansion to exactly mirror the compression used during transmission. The resulting product has been successfully employed receivly by several networks and broadcasters. The development of the technique and its application are described.
ER  -