A New Audio Bit Rate Reduction System for the CD-I Format

Nishiguchi M, Akagiri K, Suzuki T. A New Audio Bit Rate Reduction System for the CD-I Format. In: AES Convention 81. Audio Engineering Society; 1986. Paper 2375. Available from: https://aes.org/publications/elibrary-page/?id=5055

@inproceedings{Nishiguchi1986_5055,
  author = {Nishiguchi, Masayuki and Akagiri, Kenzo and Suzuki, Tadao},
  title = {{A New Audio Bit Rate Reduction System for the CD-I Format}},
  booktitle = {AES Convention 81},
  note = {Paper 2375},
  year = {1986},
  month = nov,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=5055}
}

TY  - CPAPER
TI  - A New Audio Bit Rate Reduction System for the CD-I Format
AU  - Nishiguchi, Masayuki
AU  - Akagiri, Kenzo
AU  - Suzuki, Tadao
T2  - AES Convention 81
M1  - Paper 2375
PY  - 1986
DA  - 1986/11/06
UR  - https://aes.org/publications/elibrary-page/?id=5055
PB  - Audio Engineering Society
LA  - en
AB  - This paper describes a newly developed audio bit rate reduction systems for the CD-I (Compact Disc Interactive) format. The bit rate reduction system is based on the fact that the spectrum and amplitude distribution of audio signals tends to be concentrated in a certain region. We have developed an algorithm of the bit rate reduction system and built both an encoder using DSPs and a dedicated decoder LSI. The present system allows us to record and reproduce audio signals of three different bit rates to match specific applications. Level A: Audio signals whose quality is almost the same as that obtainable with compact discs, using 309 Kbits/second per channel. Level B: Audio signals of slightly lower quality than Level A, but still suitable for high-quality music, using 159 Kbits/second per channel. Level C: Audio signals for recording and reproduction of high-quality speech, using 80 Kbits/second per channel.
ER  -