Subband coding of digital audio signals without loss of quality

Raymond N.J. Veldhuis, Marcel Breeuwer, Robbert van de Waal

    Research output: Contribution to conferencePaperAcademicpeer-review

    12 Citations (Scopus)
    166 Downloads (Pure)

    Abstract

    A subband coding system for high quality digital audio signals is described. To achieve low bit rates at a high quality level, it exploits the simultaneous masking effect of the human ear. It is shown how this effect can be used in an adaptive bit-allocation scheme. The proposed approach has been applied in two coding systems, a complex system in which signal is split into 26 subbands, each approximately one third of an octave wide, and a simpler 20-band system. Both systems have been designed for coding stereophonic 16-bit compact disk signals with a sampling frequency of 44.1 kHz. With the 26-band system high-quality results can be obtained at bit rates of 220 kb/s. With the 20-band system, similar results can be obtained at bit rates of 360 kb/s
    Original languageUndefined
    Pages2009-2012
    Number of pages4
    DOIs
    Publication statusPublished - 1989
    EventInternational Conference on Acoustics, Speech, and Signal Processing, ICASSP 1989 - Glasgow, United Kingdom
    Duration: 23 May 198925 May 1989

    Conference

    ConferenceInternational Conference on Acoustics, Speech, and Signal Processing, ICASSP 1989
    Abbreviated titleICASSP
    CountryUnited Kingdom
    CityGlasgow
    Period23/05/8925/05/89

    Keywords

    • EWI-1240
    • IR-56294

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