Fast encoding algorithms for MPEG-4 TwinVQ audio tool

N. Iwakami, T. Moriya, A. Jin, Tatsuya Mori, K. Chikira

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

4 Citations (Scopus)

Abstract

The ISO/IEC MPEG-4 Audio standard includes the TwinVQ encoding tool. This tool is suitable for low-bit-rate general audio coding, but drawback is the computational complexity of the encoder. To develop a faster TwinVQ encoder, new fast vector quantization algorithms - area localized pre-selection and hit zone masking - are introduced. These algorithms exploit pre- and main-selection procedure scheme of the conjugate structure vector quantization which is used in the TwinVQ. The improvement is evaluated by measuring the encoding speed and the sound quality of reproduction.

Original languageEnglish
Title of host publicationICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Pages3253-3256
Number of pages4
Volume5
Publication statusPublished - 2001
Externally publishedYes
Event2001 IEEE Interntional Conference on Acoustics, Speech, and Signal Processing - Salt Lake, UT, United States
Duration: 2001 May 72001 May 11

Other

Other2001 IEEE Interntional Conference on Acoustics, Speech, and Signal Processing
CountryUnited States
CitySalt Lake, UT
Period01/5/701/5/11

    Fingerprint

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Signal Processing
  • Acoustics and Ultrasonics

Cite this

Iwakami, N., Moriya, T., Jin, A., Mori, T., & Chikira, K. (2001). Fast encoding algorithms for MPEG-4 TwinVQ audio tool. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (Vol. 5, pp. 3253-3256)