The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Makalah ini mencadangkan algoritma FFT yang cekap untuk Model Psiko-Akustik (PAM) MPEG-4 AAC. Algoritma yang dicadangkan mensintesis pekali FFT menggunakan pekali MDCT dan MDST melalui lilitan bulat. Kerumitan pekali MDCT dan MDST adalah kira-kira separuh daripada FFT asal. Kami juga mereka bentuk PAM baharu berdasarkan algoritma FFT yang dicadangkan, yang mempunyai kerumitan pengiraan 15% lebih rendah daripada PAM asal tanpa penurunan kualiti bunyi. Keputusan ujian subjektif dan juga objektif dibentangkan untuk mengesahkan kecekapan algoritma pengiraan FFT yang dicadangkan dan PAM.
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.
Salinan
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
Salinan
@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},}
Salinan
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 -