• DocumentCode
    2951100
  • Title

    High quality audio coding using multipulse LPC

  • Author

    Singhal, Sharad

  • Author_Institution
    Bell Commun. Res. Inc., Morristown, NJ, USA
  • fYear
    1990
  • fDate
    3-6 Apr 1990
  • Firstpage
    1101
  • Abstract
    Experiments are described in coding broadband audio using multipulse linear predictive coding (LPC). It is possible to obtain stable LPC filters that model sinusoids closely and to include perceptual masking in these coders. The quantization of both the LPC and multipulse parameters is also examined, and it is found that multipulse can compensate for quantization error in LPC filters. With appropriate perceptual masking, these coders can provide high quality and audio output. At 128 kb/s, the coders achieved typical SNR values of 35-40 dB in simulations
  • Keywords
    audio equipment; audio signals; digital filters; encoding; 128 kbit/s; 35 to 40 dB; LPC filters; SNR; broadband audio coding; multipulse LPC; perceptual masking; quantization; Audio coding; Bandwidth; Context modeling; Encoding; Filters; Frequency; Linear predictive coding; Nonlinear filters; Pulse generation; Quantization; Signal generators;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Acoustics, Speech, and Signal Processing, 1990. ICASSP-90., 1990 International Conference on
  • Conference_Location
    Albuquerque, NM
  • ISSN
    1520-6149
  • Type

    conf

  • DOI
    10.1109/ICASSP.1990.116126
  • Filename
    116126