Multimedia signal processing using AI

K. P. Seng, L. E. Hui, T. K. Ming

Research output: Chapter in Book or Report/Conference proceedingConference Proceedingpeer-review

4 Citations (Scopus)

Abstract

Audio signal recovery is a frequent problem in digital audio restoration field because of corrupted samples that must be restored. In this paper, we look at a subband multirate architecture with RBF nonlinear predictor for audio signal recovery. The subband approach allows for the reconstruction of a long audio data sequence front forward-backward predicted samples. In order to improve prediction performances, RBF neural networks are used as narrow subband nonlinear forward-backward predictors. Previous neural networks approaches involved a long training process. In our case, the small networks needed for each subband are considered to the speed-up the convergence time and improve the generalization performances, the proposed signal recovery scheme works as a simple nonlinear adaptive filter in on-line mode. EKF (extended-Kalman-filter) is used to adjust the parameters of the RBF network. Simulation results show good results for the reconstruction of over 100 ms of audio signal with low audible effects in overall quality.

Original languageEnglish
Title of host publicationAPCC 2003 - 9th Asia-Pacific Conference on Communications, in conjunction with 6th Malaysia International Conference on Communications, MICC 2003, Proceedings
EditorsKhairil Anuar, Mahamod Ismail, Ashraf Gasim Elsid Abdalla, Hairul Azhar B. Abdul Rashid
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages825-829
Number of pages5
ISBN (Electronic)0780381149, 9780780381148
DOIs
Publication statusPublished - 2003
Externally publishedYes
Event9th IEEE Asia-Pacific Conference on Communications, APCC 2003, in conjunction with 6th Malaysia International Conference on Communications, MICC 2003 - Penang, Malaysia
Duration: 21 Sept 200324 Sept 2003

Publication series

NameAPCC 2003 - 9th Asia-Pacific Conference on Communications, in conjunction with 6th Malaysia International Conference on Communications, MICC 2003, Proceedings
Volume2

Conference

Conference9th IEEE Asia-Pacific Conference on Communications, APCC 2003, in conjunction with 6th Malaysia International Conference on Communications, MICC 2003
Country/TerritoryMalaysia
CityPenang
Period21/09/0324/09/03

Keywords

  • Artificial intelligence
  • Digital signal processing
  • Digital systems
  • Frequency domain analysis
  • Microelectronics
  • Neural networks
  • Signal analysis
  • Signal processing
  • Signal restoration
  • Streaming media

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