Efficient Cross-Fade Windows for Transitions between LPC-Based and Non-LPC Based Audio Coding

Lecomte J, Gournay P, Geiger R, Bessette B, Neuendorf M. Efficient Cross-Fade Windows for Transitions between LPC-Based and Non-LPC Based Audio Coding. In: AES Convention 126. Audio Engineering Society; 2009. Paper 7712. Available from: https://aes.org/publications/elibrary-page/?id=14908

@inproceedings{Lecomte2009_14908,
  author = {Lecomte, Jérémie and Gournay, Philippe and Geiger, Ralf and Bessette, Bruno and Neuendorf, Max},
  title = {{Efficient Cross-Fade Windows for Transitions between LPC-Based and Non-LPC Based Audio Coding}},
  booktitle = {AES Convention 126},
  note = {Paper 7712},
  year = {2009},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14908}
}

TY  - CPAPER
TI  - Efficient Cross-Fade Windows for Transitions between LPC-Based and Non-LPC Based Audio Coding
AU  - Lecomte, Jérémie
AU  - Gournay, Philippe
AU  - Geiger, Ralf
AU  - Bessette, Bruno
AU  - Neuendorf, Max
T2  - AES Convention 126
M1  - Paper 7712
PY  - 2009
DA  - 2009/05/06
UR  - https://aes.org/publications/elibrary-page/?id=14908
PB  - Audio Engineering Society
LA  - en
AB  - The reference model selected by MPEG for the forthcoming unified speech and audio codec (USAC) switches between a non-LPC based coding mode (based on AAC) operating in the transform domain and an LPC-based coding mode (derived from AMR-WB+) operating either in the time domain (ACELP) or in the frequency domain (wLPT). Seamlessly switching between these different coding modes required the design of a new set of cross-fade windows optimized to minimize the amount of overhead information sent during transitions between LPC-based and non-LPC based coding. This paper presents the new set of windows which was designed in order to provide an adequate trade-off between overlap duration and time/frequency resolution, and to maintain the benefits of critical sampling through all coding modes.
ER  -