A new audio compression method based on spectral oriented trees

Wen-Yu Su, Wei Chen Chang, Jing Xin Wang

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

3 Citations (Scopus)

Abstract

A new audio compression method based on Spectral Oriented Trees is presented. After frequency transformation is performed over a frame of audio samples, the transform coefficients are arranged to form one to several quad trees depending on harmonic structures of the signal. In each quad tree, the coefficients having larger magnitudes regarded as more important are placed closer to the root position of the tree. A method called Concurrent Encoding in Hierarchical Tree (CEIHT) is employed to encode the tree coefficients such that those important coefficients are encoded before less important coefficients. Therefore, scalability is easy by discarding the tailing bits at any position of the bit-stream. The quality is comparable to that of MP3. The proposed method doesn't use psychoacoustic model and the computation complexity is relatively lower compared to those of MP3 and AAC. Only one small coding table is used for CEIHT method while the tables used in MP3 or AAC require lots of memory spaces. Thus, the proposed method provides a lower cost alternative, too.

Original languageEnglish
Title of host publicationAudio Engineering Society - 118th Convention Spring Preprints 2005
Pages1082-1088
Number of pages7
Publication statusPublished - 2005 Dec 1
Event118th Convention Spring Preprints 2005 - Barcelona, Spain
Duration: 2005 May 282005 May 31

Publication series

NameAudio Engineering Society - 118th Convention Spring Preprints 2005
Volume3

Other

Other118th Convention Spring Preprints 2005
CountrySpain
CityBarcelona
Period05-05-2805-05-31

Fingerprint

Compression
Tailings
Coefficient
Quadtree
Scalability
coefficients
coding
Concurrent
Data storage equipment
Encoding
Costs
psychoacoustics
Tables
Table
Harmonic
Coding
Roots
Transform
Alternatives
harmonics

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Acoustics and Ultrasonics

Cite this

Su, W-Y., Chang, W. C., & Wang, J. X. (2005). A new audio compression method based on spectral oriented trees. In Audio Engineering Society - 118th Convention Spring Preprints 2005 (pp. 1082-1088). (Audio Engineering Society - 118th Convention Spring Preprints 2005; Vol. 3).
Su, Wen-Yu ; Chang, Wei Chen ; Wang, Jing Xin. / A new audio compression method based on spectral oriented trees. Audio Engineering Society - 118th Convention Spring Preprints 2005. 2005. pp. 1082-1088 (Audio Engineering Society - 118th Convention Spring Preprints 2005).
@inproceedings{6cb82b9e22504b38b4b459f337436bf7,
title = "A new audio compression method based on spectral oriented trees",
abstract = "A new audio compression method based on Spectral Oriented Trees is presented. After frequency transformation is performed over a frame of audio samples, the transform coefficients are arranged to form one to several quad trees depending on harmonic structures of the signal. In each quad tree, the coefficients having larger magnitudes regarded as more important are placed closer to the root position of the tree. A method called Concurrent Encoding in Hierarchical Tree (CEIHT) is employed to encode the tree coefficients such that those important coefficients are encoded before less important coefficients. Therefore, scalability is easy by discarding the tailing bits at any position of the bit-stream. The quality is comparable to that of MP3. The proposed method doesn't use psychoacoustic model and the computation complexity is relatively lower compared to those of MP3 and AAC. Only one small coding table is used for CEIHT method while the tables used in MP3 or AAC require lots of memory spaces. Thus, the proposed method provides a lower cost alternative, too.",
author = "Wen-Yu Su and Chang, {Wei Chen} and Wang, {Jing Xin}",
year = "2005",
month = "12",
day = "1",
language = "English",
isbn = "9781604234848",
series = "Audio Engineering Society - 118th Convention Spring Preprints 2005",
pages = "1082--1088",
booktitle = "Audio Engineering Society - 118th Convention Spring Preprints 2005",

}

Su, W-Y, Chang, WC & Wang, JX 2005, A new audio compression method based on spectral oriented trees. in Audio Engineering Society - 118th Convention Spring Preprints 2005. Audio Engineering Society - 118th Convention Spring Preprints 2005, vol. 3, pp. 1082-1088, 118th Convention Spring Preprints 2005, Barcelona, Spain, 05-05-28.

A new audio compression method based on spectral oriented trees. / Su, Wen-Yu; Chang, Wei Chen; Wang, Jing Xin.

Audio Engineering Society - 118th Convention Spring Preprints 2005. 2005. p. 1082-1088 (Audio Engineering Society - 118th Convention Spring Preprints 2005; Vol. 3).

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

TY - GEN

T1 - A new audio compression method based on spectral oriented trees

AU - Su, Wen-Yu

AU - Chang, Wei Chen

AU - Wang, Jing Xin

PY - 2005/12/1

Y1 - 2005/12/1

N2 - A new audio compression method based on Spectral Oriented Trees is presented. After frequency transformation is performed over a frame of audio samples, the transform coefficients are arranged to form one to several quad trees depending on harmonic structures of the signal. In each quad tree, the coefficients having larger magnitudes regarded as more important are placed closer to the root position of the tree. A method called Concurrent Encoding in Hierarchical Tree (CEIHT) is employed to encode the tree coefficients such that those important coefficients are encoded before less important coefficients. Therefore, scalability is easy by discarding the tailing bits at any position of the bit-stream. The quality is comparable to that of MP3. The proposed method doesn't use psychoacoustic model and the computation complexity is relatively lower compared to those of MP3 and AAC. Only one small coding table is used for CEIHT method while the tables used in MP3 or AAC require lots of memory spaces. Thus, the proposed method provides a lower cost alternative, too.

AB - A new audio compression method based on Spectral Oriented Trees is presented. After frequency transformation is performed over a frame of audio samples, the transform coefficients are arranged to form one to several quad trees depending on harmonic structures of the signal. In each quad tree, the coefficients having larger magnitudes regarded as more important are placed closer to the root position of the tree. A method called Concurrent Encoding in Hierarchical Tree (CEIHT) is employed to encode the tree coefficients such that those important coefficients are encoded before less important coefficients. Therefore, scalability is easy by discarding the tailing bits at any position of the bit-stream. The quality is comparable to that of MP3. The proposed method doesn't use psychoacoustic model and the computation complexity is relatively lower compared to those of MP3 and AAC. Only one small coding table is used for CEIHT method while the tables used in MP3 or AAC require lots of memory spaces. Thus, the proposed method provides a lower cost alternative, too.

UR - http://www.scopus.com/inward/record.url?scp=84866502795&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84866502795&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84866502795

SN - 9781604234848

T3 - Audio Engineering Society - 118th Convention Spring Preprints 2005

SP - 1082

EP - 1088

BT - Audio Engineering Society - 118th Convention Spring Preprints 2005

ER -

Su W-Y, Chang WC, Wang JX. A new audio compression method based on spectral oriented trees. In Audio Engineering Society - 118th Convention Spring Preprints 2005. 2005. p. 1082-1088. (Audio Engineering Society - 118th Convention Spring Preprints 2005).