Robust low-delay audio coding using multiple descriptions

Gerald Schuller, Jelena Kovačević, Francois Masson, Vivek K. Goyal

Research output: Contribution to journalArticlepeer-review

Abstract

This paper proposes an encoding method for high-quality, low-delay audio communication that is robust to losses in packetized transmission. Robustness is provided by a multiple description vector quantization (MDVQ) technique that is designed to minimize the mean-squared error (MSE). The key to applying this technique effectively is the use of psycho-acoustically controlled pre- and post-filters that make the mean-squared quantization error perceptually relevant. Experiments show that the MDVQ-based encoder yields better results - in both MSE and subjective audio quality - than simple alternative coders with the same low delay.

Original languageEnglish (US)
Pages (from-to)1014-1023
Number of pages10
JournalIEEE Transactions on Speech and Audio Processing
Volume13
Issue number5
DOIs
StatePublished - Sep 2005

Keywords

  • Audio coding
  • Error robustness
  • LMS
  • Low delay
  • Multiple descriptions
  • Predictive coding
  • Psycho-acoustics

ASJC Scopus subject areas

  • Software
  • Acoustics and Ultrasonics
  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering

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