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 language | English |
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Title of host publication | Proceedings - IEEE Southeastcon 1999 |
Subtitle of host publication | Technology on the Brink of 2000 |
Pages | 253-257 |
Number of pages | 5 |
ISBN (Electronic) | 0780352378 |
DOIs | |
State | Published - 1999 |
Event | 1999 IEEE Southeastcon - Lexington, United States Duration: Mar 25 1999 → Mar 28 1999 |
Publication series
Name | Conference Proceedings - IEEE SOUTHEASTCON |
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Volume | 1999-March |
ISSN (Print) | 1091-0050 |
ISSN (Electronic) | 1558-058X |
Conference
Conference | 1999 IEEE Southeastcon |
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Country/Territory | United States |
City | Lexington |
Period | 3/25/99 → 3/28/99 |
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