Processor-efficient implementation of a high quality MPEG-2 AAC encoder

Takamizawa Y, Nomura T. Processor-efficient implementation of a high quality MPEG-2 AAC encoder. In: AES Convention 110. Audio Engineering Society; 2001. Paper 5294. Available from: https://aes.org/publications/elibrary-page/?id=9943

@inproceedings{Takamizawa2001_9943,
  author = {Takamizawa, Yuichiro and Nomura, Toshiyuki},
  title = {{Processor-efficient implementation of a high quality MPEG-2 AAC encoder}},
  booktitle = {AES Convention 110},
  note = {Paper 5294},
  year = {2001},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=9943}
}

TY  - CPAPER
TI  - Processor-efficient implementation of a high quality MPEG-2 AAC encoder
AU  - Takamizawa, Yuichiro
AU  - Nomura, Toshiyuki
T2  - AES Convention 110
M1  - Paper 5294
PY  - 2001
DA  - 2001/05/06
UR  - https://aes.org/publications/elibrary-page/?id=9943
PB  - Audio Engineering Society
LA  - en
AB  - This paper describes processor-efficient implementation of a high quality MPEG-2 AAC encoder employing fast psycho-acoustic analysis, efficient encoding of side information, and SIMD instructions. A psycho-acoustic analysis in the MDCT domain reduces computational costs. Smoothing of scalefactors and optimized selection of Huffman tables are introduced to efficiently encode the side information. SIMD instructions are heavily used in MDCT and quantization processes to improve the encoding speed. Seven-grade comparison MOS test results show that the AAC encoder at 96 kbps/stereo achieves sound quality equivalent to that of MP3 at 128 kbps/stereo. The encoder works 13 times faster than realtime for stereo encoding on an 800 MHz Pentium III processor.
ER  -