New Enhancements to the Audio Bandwidth Extension Toolkit (ABET)

Annadana R, E.V. H, Ferreira A, Sinha D. New Enhancements to the Audio Bandwidth Extension Toolkit (ABET). In: AES Convention 124. Audio Engineering Society; 2008. Paper 7488. Available from: https://aes.org/publications/elibrary-page/?id=14618

@inproceedings{Annadana2008_14618,
  author = {Annadana, Raghuram and E.V., Harinarayanan and Ferreira, Anibal and Sinha, Deepen},
  title = {{New Enhancements to the Audio Bandwidth Extension Toolkit (ABET)}},
  booktitle = {AES Convention 124},
  note = {Paper 7488},
  year = {2008},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14618}
}

TY  - CPAPER
TI  - New Enhancements to the Audio Bandwidth Extension Toolkit (ABET)
AU  - Annadana, Raghuram
AU  - E.V., Harinarayanan
AU  - Ferreira, Anibal
AU  - Sinha, Deepen
T2  - AES Convention 124
M1  - Paper 7488
PY  - 2008
DA  - 2008/05/06
UR  - https://aes.org/publications/elibrary-page/?id=14618
PB  - Audio Engineering Society
LA  - en
AB  - Audio bandwidth extension has emerged as a key low bit rate coding tool. In continuation with our on going research on audio bandwidth extension, this paper presents new enhancements to Audio Bandwidth Extension Toolkit (ABET). ABET consists of three primary tools Accurate Spectral Replacement (ASR), Fractal Self Similarity Model (FSSM) and Multi-band Temporal Envelope Amplitude Coding (MBTAC) [1],[2],[3] . Additionally we have also introduced a blind bandwidth extension mode into ABET [4]. We discuss several new ideas / improvements to ABET. Specifically enhancements to the blind bandwidth extension architecture which allow it to work with signals with only 3.5-4.0 kHz audio bandwidth are described. We also elaborate on a new tool for efficient coding of time-frequency envelope which cuts the overhead by 0.75-1.0 kbps/channel. We also address a practical issue i.e., the computational complexity and describe a new low decoder complexity mode of ABET.
ER  -