IEICE TRANSACTIONS on Information
Efficient FFT Algorithm for Psychoacoustic Model of the MPEG-4 AAC
Summary :
This paper proposes an efficient FFT algorithm for the Psycho-Acoustic Model (PAM) of MPEG-4 AAC. The proposed algorithm synthesizes FFT coefficients using MDCT and MDST coefficients through circular convolution. The complexity of the MDCT and MDST coefficients is approximately half of the original FFT. We also design a new PAM based on the proposed FFT algorithm, which has 15% lower computational complexity than the original PAM without degradation of sound quality. Subjective as well as objective test results are presented to confirm the efficiency of the proposed FFT computation algorithm and the PAM.
- Publication
- IEICE TRANSACTIONS on Information Vol.E92-D No.12 pp.2535-2539
- Publication Date
- 2009/12/01
- Publicized
- Online ISSN
- 1745-1361
- DOI
- 10.1587/transinf.E92.D.2535
- Type of Manuscript
- LETTER
- Category
- Speech and Hearing
Authors
Keyword
Latest Issue
Copyrights notice of machine-translated contents
The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.
Cite this
Copy
Jae-Seong LEE, Chang-Joon LEE, Young-Cheol PARK, Dae-Hee YOUN, "Efficient FFT Algorithm for Psychoacoustic Model of the MPEG-4 AAC" in IEICE TRANSACTIONS on Information,
vol. E92-D, no. 12, pp. 2535-2539, December 2009, doi: 10.1587/transinf.E92.D.2535.
Abstract: This paper proposes an efficient FFT algorithm for the Psycho-Acoustic Model (PAM) of MPEG-4 AAC. The proposed algorithm synthesizes FFT coefficients using MDCT and MDST coefficients through circular convolution. The complexity of the MDCT and MDST coefficients is approximately half of the original FFT. We also design a new PAM based on the proposed FFT algorithm, which has 15% lower computational complexity than the original PAM without degradation of sound quality. Subjective as well as objective test results are presented to confirm the efficiency of the proposed FFT computation algorithm and the PAM.
URL: https://global.ieice.org/en_transactions/information/10.1587/transinf.E92.D.2535/_p
Copy
@ARTICLE{e92-d_12_2535,
author={Jae-Seong LEE, Chang-Joon LEE, Young-Cheol PARK, Dae-Hee YOUN, },
journal={IEICE TRANSACTIONS on Information},
title={Efficient FFT Algorithm for Psychoacoustic Model of the MPEG-4 AAC},
year={2009},
volume={E92-D},
number={12},
pages={2535-2539},
abstract={This paper proposes an efficient FFT algorithm for the Psycho-Acoustic Model (PAM) of MPEG-4 AAC. The proposed algorithm synthesizes FFT coefficients using MDCT and MDST coefficients through circular convolution. The complexity of the MDCT and MDST coefficients is approximately half of the original FFT. We also design a new PAM based on the proposed FFT algorithm, which has 15% lower computational complexity than the original PAM without degradation of sound quality. Subjective as well as objective test results are presented to confirm the efficiency of the proposed FFT computation algorithm and the PAM.},
keywords={},
doi={10.1587/transinf.E92.D.2535},
ISSN={1745-1361},
month={December},}
Copy
TY - JOUR
TI - Efficient FFT Algorithm for Psychoacoustic Model of the MPEG-4 AAC
T2 - IEICE TRANSACTIONS on Information
SP - 2535
EP - 2539
AU - Jae-Seong LEE
AU - Chang-Joon LEE
AU - Young-Cheol PARK
AU - Dae-Hee YOUN
PY - 2009
DO - 10.1587/transinf.E92.D.2535
JO - IEICE TRANSACTIONS on Information
SN - 1745-1361
VL - E92-D
IS - 12
JA - IEICE TRANSACTIONS on Information
Y1 - December 2009
AB - This paper proposes an efficient FFT algorithm for the Psycho-Acoustic Model (PAM) of MPEG-4 AAC. The proposed algorithm synthesizes FFT coefficients using MDCT and MDST coefficients through circular convolution. The complexity of the MDCT and MDST coefficients is approximately half of the original FFT. We also design a new PAM based on the proposed FFT algorithm, which has 15% lower computational complexity than the original PAM without degradation of sound quality. Subjective as well as objective test results are presented to confirm the efficiency of the proposed FFT computation algorithm and the PAM.
ER -
English
