Quality Improvement Using a Sinusoidal Model in HE-AAC

Kim JG, Hyun DI, Youn DH, Park YC. Quality Improvement Using a Sinusoidal Model in HE-AAC. In: AES Convention 123. Audio Engineering Society; 2007. Paper 7292. Available from: https://aes.org/publications/elibrary-page/?id=14349

@inproceedings{Kim2007_14349,
  author = {Kim, Jung Geun and Hyun, Dong Il and Youn, Dae Hee and Park, Young Cheol},
  title = {{Quality Improvement Using a Sinusoidal Model in HE-AAC}},
  booktitle = {AES Convention 123},
  note = {Paper 7292},
  year = {2007},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14349}
}

TY  - CPAPER
TI  - Quality Improvement Using a Sinusoidal Model in HE-AAC
AU  - Kim, Jung Geun
AU  - Hyun, Dong Il
AU  - Youn, Dae Hee
AU  - Park, Young Cheol
T2  - AES Convention 123
M1  - Paper 7292
PY  - 2007
DA  - 2007/10/06
UR  - https://aes.org/publications/elibrary-page/?id=14349
PB  - Audio Engineering Society
LA  - en
AB  - In Spectral Band Replication (SBR), a tone is often restored as a noise, which results in audible distortion. In this paper, we propose an efficient way of restoring the original tones using SBR. In the proposed algorithm, the tones are identified through a sinusoidal modeling and their frequencies are adjusted within the QMF band in order to reduce the noise floor. The proposed algorithm is perfectly compatible to the standard High-Efficiency AAC (HE-AAC) because it doesn¢¢ç¯t require additional information or operations in the decoding process. Output spectrograms were compared and listening tests were conducted to evaluate the proposed algorithm. Results confirmed the effectiveness of the proposed algorithm.
ER  -