Audio Patch Method in MPEG-4 HE AAC Decoder

Hsu HW, Lee WC, Li ZW, Liu CM. Audio Patch Method in MPEG-4 HE AAC Decoder. In: AES Convention 117. Audio Engineering Society; 2004. Paper 6221. Available from: https://aes.org/publications/elibrary-page/?id=12878

@inproceedings{Hsu2004_12878,
  author = {Hsu, Han-Wen and Lee, Wen-Chieh and Li, Zheng-Wen and Liu, Chi-Min},
  title = {{Audio Patch Method in MPEG-4 HE AAC Decoder}},
  booktitle = {AES Convention 117},
  note = {Paper 6221},
  year = {2004},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=12878}
}

TY  - CPAPER
TI  - Audio Patch Method in MPEG-4 HE AAC Decoder
AU  - Hsu, Han-Wen
AU  - Lee, Wen-Chieh
AU  - Li, Zheng-Wen
AU  - Liu, Chi-Min
T2  - AES Convention 117
M1  - Paper 6221
PY  - 2004
DA  - 2004/10/06
UR  - https://aes.org/publications/elibrary-page/?id=12878
PB  - Audio Engineering Society
LA  - en
AB  - This paper extends the previous work on AAC to the HE-AAC. The audio path method consists of two individual parts, zero band dithering and high frequency reconstruction. The zero band dithering can conceal the fishy artifact in the low frequency part that is encoded by a convention AAC encoder. Furthermore, high frequency reconstruction can extend the audio obtained from the SBR to a full bandwidth signal. Intensive experiments have been conducted on various audio tracks to check the quality improvement and the possible risks in degrading the quality. The objective test measures used is the recommendation system by ITU-R Task Group 10/4.
ER  -