A comparison of audio compression transforms

Barron E. Rulon, Michael F. Shaw, Kevin D. Donohue

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

Abstract

This paper provides a subjective quality analysis of transforms used in audio compression algorithms for a class of music signals. An analysis with the discrete wavelet packet transform (DWPT) compares performances of an eight-level non-uniform critical-band frequency split versus a five-level uniform subband frequency split used in MPEG. Another analysis compares the performances of the DWPT versus the modified discrete cosine transform (MDCT). The quality assessor at each level of compression was based on a listening test (34 subjects). Results show that the critical-band split provides significantly better quality than the even-band split for sounds with strong low frequency content, and that the DWPT outperforms the MDCT overall, but with significant improvement for non-Tonal sounds.

Original languageEnglish
Title of host publicationProceedings - IEEE Southeastcon 1999
Subtitle of host publicationTechnology on the Brink of 2000
Pages253-257
Number of pages5
ISBN (Electronic)0780352378
DOIs
StatePublished - 1999
Event1999 IEEE Southeastcon - Lexington, United States
Duration: Mar 25 1999Mar 28 1999

Publication series

NameConference Proceedings - IEEE SOUTHEASTCON
Volume1999-March
ISSN (Print)1091-0050
ISSN (Electronic)1558-058X

Conference

Conference1999 IEEE Southeastcon
Country/TerritoryUnited States
CityLexington
Period3/25/993/28/99

Bibliographical note

Publisher Copyright:
© 1999 IEEE.

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Software
  • Electrical and Electronic Engineering
  • Control and Systems Engineering
  • Signal Processing

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