Efficient High-frequency Bandwidth Extension of Music and Speech

Larsen E, Aarts RM, Danessis M. Efficient High-frequency Bandwidth Extension of Music and Speech. In: AES Convention 112. Audio Engineering Society; 2002. Paper 5627. Available from: https://aes.org/publications/elibrary-page/?id=11432

@inproceedings{Larsen2002_11432,
  author = {Larsen, Erik and Aarts, Ronald M. and Danessis, Michael},
  title = {{Efficient High-frequency Bandwidth Extension of Music and Speech}},
  booktitle = {AES Convention 112},
  note = {Paper 5627},
  year = {2002},
  month = apr,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=11432}
}

TY  - CPAPER
TI  - Efficient High-frequency Bandwidth Extension of Music and Speech
AU  - Larsen, Erik
AU  - Aarts, Ronald M.
AU  - Danessis, Michael
T2  - AES Convention 112
M1  - Paper 5627
PY  - 2002
DA  - 2002/04/06
UR  - https://aes.org/publications/elibrary-page/?id=11432
PB  - Audio Engineering Society
LA  - en
AB  - The use of perceptually based (lossy) audio codecs, like MPEG 1 - layer 3 ('mp3'), has become very popular in the last few years. However, at very high compression rates the perceptual quality of the signal is degraded, which is mainly exhibited as a loss of high frequencies. We propose an efficient algorithm for extending the bandwidth of an audio signal, with the goal to create a more natural sound. This is done by adding an extra octave at the high frequency part of the spectrum. The algorithm uses a non-linearity to generate the extended octave, and can be applied to music as well as speech. This also enables application to fixed or mobile communication systems.
ER  -