Embedding perceptual metrics in rate control algorithms

Venkatraman Atti, Andreas Spanias

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we describe a perceptuallymotivated rate control algorithm for variable bit rate (VBR) speech coding. Unlike the existing rate selection strategies that are based on statistical metrics, the proposed method employs a perceptual loudness (PL) measure. The VBR speech standard TIA IS-127 enhanced variable rate codec (EVRC) has been chosen as the test-bed for evaluating the performance of the PL-based rate selection strategy relative to three other existing methods. In particular, the comparative study includes the following rate determination algorithms: voice activity detection, speech frame energy-thresholding, and phonetic segmentation. Experimental results demonstrate that the proposed PL-based RDA compares well against other rate selection techniques in terms of average bitrate and speech quality.

Original languageEnglish (US)
Title of host publicationProceedings of the 20th IEEE International Symposium on Intelligent Control, ISIC '05 and the 13th Mediterranean Conference on Control and Automation, MED '05
Pages861-865
Number of pages5
DOIs
StatePublished - Dec 1 2005
Event20th IEEE International Symposium on Intelligent Control, ISIC '05 and the13th Mediterranean Conference on Control and Automation, MED '05 - Limassol, Cyprus
Duration: Jun 27 2005Jun 29 2005

Publication series

NameProceedings of the 20th IEEE International Symposium on Intelligent Control, ISIC '05 and the 13th Mediterranean Conference on Control and Automation, MED '05
Volume2005

Other

Other20th IEEE International Symposium on Intelligent Control, ISIC '05 and the13th Mediterranean Conference on Control and Automation, MED '05
CountryCyprus
CityLimassol
Period6/27/056/29/05

Keywords

  • Perceptual rate control algorithm
  • Signal processing
  • Speech modeling
  • Variable bit rate speech analysis

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'Embedding perceptual metrics in rate control algorithms'. Together they form a unique fingerprint.

  • Cite this

    Atti, V., & Spanias, A. (2005). Embedding perceptual metrics in rate control algorithms. In Proceedings of the 20th IEEE International Symposium on Intelligent Control, ISIC '05 and the 13th Mediterranean Conference on Control and Automation, MED '05 (pp. 861-865). [1467127] (Proceedings of the 20th IEEE International Symposium on Intelligent Control, ISIC '05 and the 13th Mediterranean Conference on Control and Automation, MED '05; Vol. 2005). https://doi.org/10.1109/.2005.1467127