Subband coding with modified multipulse LPC for high quality audio

Authors:
Xiao Lin;Raymond Steele
Affiliations:
Department of Electronics and Computer Science, University of Southampton, UK;Department of Electronics and Computer Science, University of Southampton, UK
Venue:
ICASSP'93 Proceedings of the 1993 IEEE international conference on Acoustics, speech, and signal processing: plenary, special, audio, underwater acoustics, VLSI, neural networks - Volume I
Year:
1993

Citing 2
Cited 0

Multirate Digital Signal Processing

Multirate Digital Signal Processing
Synthesis/coding of audio signals using optimized wavelets

ICASSP'92 Proceedings of the 1992 IEEE international conference on Acoustics, speech and signal processing - Volume 1

Quantified Score

Hi-index	0.00

Visualization

Abstract

A modified muiti-pulse excitation LPC (MMPLPC) combined with a subband(SB) technique is proposed to encode audio signals of l5kHz bandwidth. The bit allocation is dynamically adapted according to both the signal power in different subbands and a perceptual hearing model. Informal listening tests show that high fidelity audio coding can be achieved at bit rates of less than 86 kbits/s by SB-MMPLPC.