A 5-Band Companded Technique for Converting Telephone-Quality to Broadcast-Quality Using Two Voice-Grade Phone Lines

Talbot DB, Cheney JF. A 5-Band Companded Technique for Converting Telephone-Quality to Broadcast-Quality Using Two Voice-Grade Phone Lines. In: AES Convention 76. Audio Engineering Society; 1984. Paper 2121. Available from: https://aes.org/publications/elibrary-page/?id=11633

@inproceedings{Talbot1984_11633,
  author = {Talbot, Daniel B. and Cheney, John F.},
  title = {{A 5-Band Companded Technique for Converting Telephone-Quality to Broadcast-Quality Using Two Voice-Grade Phone Lines}},
  booktitle = {AES Convention 76},
  note = {Paper 2121},
  year = {1984},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=11633}
}

TY  - CPAPER
TI  - A 5-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  - AES Convention 76
M1  - Paper 2121
PY  - 1984
DA  - 1984/10/06
UR  - https://aes.org/publications/elibrary-page/?id=11633
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 5-band compression, shifting the frequency bands of the program during transmission to occupy two 3 kHz bandwidth phone lines, then un-shifting 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 recently by several networks and broadcasters. This papar will report on the development of the technique and its application.
ER  -