Papers

Quality Improvement Using a Sinusoidal Model in HE-AAC

International Conference
2006~2010
작성자
한혜원
작성일
2007-10-01 23:27
조회
1347
Authors : Jeng-Geun Kim, Dong-il Hyun, Dae Hee Youn, Young-Cheol Park

Year : 2007

Publisher / Conference : 123th Convention of Audio Engineering Society

Page : 7292

This paper identifies a phenomenon that a signal is distorted because noise floor is generated when restoring a tone in HE-AAC, which does not exist in the original input signal; and to solve this matter, it suggests how to restore only the original tonal components in decoding by adding a sinusoidal model to the HE-AAC encoder. In this process, the sinusoidal model is used to analyze a tone and to move it to the place where noise floor is reduced. The lower the bit-rate is, the lower the frequency where the restoration by SBR(Spectral Band Replication) is started becomes, and in the lower frequency, the distortion phenomenon by noise inflow can be sensed easily; thus, the effect of improvement in the suggested method is greater, and it is beneficial that no additional information or operation in the decoding process is needed.
전체 356
53 International Conference Dong-il Hyun, Jeongil Seo, Young-cheol Park, Dae Hee Youn "Improved phase parameter analysis and synthesis for parametric stereo audio coding" in ICASSP, 2011
52 International Conference Jeongook Song, Hyen-o Oh, Hong-Goo Kong "Enhanced long-term predictor for Unified Speech and Audio Coding" in ICASSP, 2011
51 International Conference Myung-Suk Song, Cha Zhang, Dinei Florencio, Hong-Goo Kang "Enhancing loudspeaker-based 3D audio with room modeling" in MMSP, 2010
50 International Conference Chi-Sang Jung, Kyu J. Han, Hyunson Seo, Shrikanth S. Narayanan, Hong-Goo Kang "A Variable Frame Length and Rate Algorithm Based on the Spectral Kurtosis Measure for Speaker Verification" in INTERPSEECH, pp.2754-2757, 2010
49 International Conference Ming Li, Chi-Sang Jung, Kyu J. Han "Combining Five Acoustic Level Modeling Methods for Automatic Speaker Age and Gender Recognition" in INTERSPEECH, pp.2826-2829, 2010
48 International Conference Myung-Suk Song , Cha Zhang, Dinei Florencio, Hong-Goo Kang "Personal 3D audio system with loudspeakers" in ICME, 2010
47 International Conference Se-Woon Jeon, Young-Cheol Park, Seok-Pil Lee, Dae Hee Youn "Robust Representation of Spatial Sound in Stereo-to-Multichannel Upmix" in 128th Convention of Audio Engineering Society, pp.7976, 2010
46 International Conference Se-Woon Jeon, Dongil Hyun, Jeongil Seo, Young-Cheol Park, Dae Hee Youn "Enhancement of principal to ambient energy ratio for PCA-based parametric audio coding" in ICASSP, 2010
45 International Conference Ho Seon Shin, Min-Seok Choi, Taesu Kim, Hong-Goo Kang "Binaural loudness based speech reinforcement with a closed-form solution" in ICASSP, 2010
44 International Conference SoonHo Beak, Myung-Suk Song, Seok-Pil Lee, Hong-Goo Kang "Speaker Array System Based on Equalization Method with a Quiet Zone" in 127th Convention of Audio Engineering Society, pp.7951, 2009