High Frequency Reconstruction by Linear Extrapolation

Hsu HW, Lee WC, Liu CM. High Frequency Reconstruction by Linear Extrapolation. In: AES Convention 115. Audio Engineering Society; 2003. Paper 5968. Available from: https://aes.org/publications/elibrary-page/?id=12426

@inproceedings{Hsu2003_12426,
  author = {Hsu, Han-Wen and Lee, Wen-Chieh and Liu, Chi-Min},
  title = {{High Frequency Reconstruction by Linear Extrapolation}},
  booktitle = {AES Convention 115},
  note = {Paper 5968},
  year = {2003},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=12426}
}

TY  - CPAPER
TI  - High Frequency Reconstruction by Linear Extrapolation
AU  - Hsu, Han-Wen
AU  - Lee, Wen-Chieh
AU  - Liu, Chi-Min
T2  - AES Convention 115
M1  - Paper 5968
PY  - 2003
DA  - 2003/10/06
UR  - https://aes.org/publications/elibrary-page/?id=12426
PB  - Audio Engineering Society
LA  - en
AB  - Current existing digital audio signals are always restricted by sampling rates and bandwidth fit for the various storages and communication bandwidth. Take for example the widely spread mp3 tracks encoded by the standard MPEG1 layer 3. The audio bandwidth in MP3 is restricted to 16 kHz due to the protocols constraints defined. This paper presents the method to reconstruct the lost high frequency components from the band-limited signals. Both the subjective and objective measures have been conducted and shown the better quality. Especially, the important objective measurement by the perceptual evaluation of audio quality system, which is the recommendation system by ITU-R Task Group 10/4 has proven a significant quality improvement.
ER  -