AAC-ELD V2 - The New State of the Art in High Quality Communication Audio Coding

Lutzky M, Luis Valero M, Schnell M, Hilpert J. AAC-ELD V2 - The New State of the Art in High Quality Communication Audio Coding. In: AES Convention 131. Audio Engineering Society; 2011. Paper 8516. Available from: https://aes.org/publications/elibrary-page/?id=16042

@inproceedings{Lutzky2011_16042,
  author = {Lutzky, Manfred and Luis Valero, María and Schnell, Markus and Hilpert, Johannes},
  title = {{AAC-ELD V2 - The New State of the Art in High Quality Communication Audio Coding}},
  booktitle = {AES Convention 131},
  note = {Paper 8516},
  year = {2011},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16042}
}

TY  - CPAPER
TI  - AAC-ELD V2 - The New State of the Art in High Quality Communication Audio Coding
AU  - Lutzky, Manfred
AU  - Luis Valero, María
AU  - Schnell, Markus
AU  - Hilpert, Johannes
T2  - AES Convention 131
M1  - Paper 8516
PY  - 2011
DA  - 2011/10/06
UR  - https://aes.org/publications/elibrary-page/?id=16042
PB  - Audio Engineering Society
LA  - en
AB  - Recently MPEG finished the standardization of a Low Delay MPEG Surround tool that is tailored for enhancing the widely adopted AAC-ELD low delay codec for high-quality audio communication into AAC-ELD v2. In combination with the Low Delay MPEG Surround tool, the coding efficiency for stereo content outperforms competing low delay audio codecs at least by a factor of 2. This paper describes the technical challenges and solutions for designing a low delay codec that delivers a performance which is comparable to that of existing state of the art compression schemes featuring much higher delay, such as HE AAC v2. It provides a comparison to competing proprietary and ITU-T codecs, as well as a guideline for how to select the best possible points of operation. Applications facilitated by AAC-ELD v2 in the area of broadcasting and mobile video conferencing are discussed
ER  -