• DocumentCode
    949652
  • Title

    The development of a circuit for the compression of digital audio

  • Author

    Nishida, Hideharu ; Inoue, Takeo ; Hirai, Hiroyuki ; Tsukihashi, Akira ; Sugishita, Shozo ; Abe, Yuzo

  • Author_Institution
    Sanyo Electr. Co. Ltd., Osaka, Japan
  • Volume
    39
  • Issue
    3
  • fYear
    1993
  • Firstpage
    269
  • Lastpage
    273
  • Abstract
    A circuit for the compression of digital audio has been developed which is very small in scale (less than 4000 gates) but exhibits nearly the same quality at 220.5 kb/s as the 705.6 kb/s 16 b PCM (pulse-code-modulated) sound. The proposed method improves the conventional ADPCM (adaptive differential pulse code modulation) coding method. This circuit was used to produce a low-cost and compact antishock compact disc player
  • Keywords
    audio equipment; audio signals; codecs; data compression; filtering and prediction theory; pulse-code modulation; signal processing equipment; 220.5 kbit/s; ADPCM; adaptive differential pulse code modulation; antishock compact disc player; coding; digital audio compression circuit; Audio recording; Auditory system; CD recording; Circuits; Decoding; Electric shock; Optical recording; Optical sensors; Signal processing; Signal restoration;
  • fLanguage
    English
  • Journal_Title
    Consumer Electronics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0098-3063
  • Type

    jour

  • DOI
    10.1109/30.234592
  • Filename
    234592