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
본 논문에서는 MPEG-4 AAC의 PAM(Psycho-Acoustic Model)을 위한 효율적인 FFT 알고리즘을 제안합니다. 제안하는 알고리즘은 원형 컨볼루션을 통해 MDCT와 MDST 계수를 이용하여 FFT 계수를 합성한다. MDCT 및 MDST 계수의 복잡도는 원래 FFT의 약 절반입니다. 또한 제안된 FFT 알고리즘을 기반으로 음질 저하 없이 원래 PAM보다 계산 복잡도가 15% 낮은 새로운 PAM을 설계합니다. 제안된 FFT 계산 알고리즘과 PAM의 효율성을 확인하기 위해 주관적 및 객관적인 테스트 결과를 제시한다.
FFT, MDCT, MDST, 심리 음향 모델, MPEG-4 AAC
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부
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
부
@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},}
부
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 -