QMF Based Harmonic Spectral Band Replication

Zhong H, Villemoes L, Ekstrand P, Disch S, Nagel F, Wilde S, Chong KS, Norimatsu T. QMF Based Harmonic Spectral Band Replication. In: AES Convention 131. Audio Engineering Society; 2011. Paper 8517. Available from: https://aes.org/publications/elibrary-page/?id=16043

@inproceedings{Zhong2011_16043,
  author = {Zhong, Haishan and Villemoes, Lars and Ekstrand, Per and Disch, Sascha and Nagel, Frederik and Wilde, Stephan and Chong, Kok Seng and Norimatsu, Takeshi},
  title = {{QMF Based Harmonic Spectral Band Replication}},
  booktitle = {AES Convention 131},
  note = {Paper 8517},
  year = {2011},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16043}
}

TY  - CPAPER
TI  - QMF Based Harmonic Spectral Band Replication
AU  - Zhong, Haishan
AU  - Villemoes, Lars
AU  - Ekstrand, Per
AU  - Disch, Sascha
AU  - Nagel, Frederik
AU  - Wilde, Stephan
AU  - Chong, Kok Seng
AU  - Norimatsu, Takeshi
T2  - AES Convention 131
M1  - Paper 8517
PY  - 2011
DA  - 2011/10/06
UR  - https://aes.org/publications/elibrary-page/?id=16043
PB  - Audio Engineering Society
LA  - en
AB  - Unified speech and audio coding (USAC) is the next step in the evolution of audio codecs that are standardized by the Moving Picture Experts Group (MPEG). USAC provides consistent quality for music, speech and mixed material, by extending the strength of an audio codec by speech codec functions. Two novel flavors of Spectral Band Replication (SBR) were introduced to enhance the perceptual quality of SBR: the Discrete Fourier Transform (DFT) based and the Quadrature Mirror Filter (QMF) bank harmonic SBR. The DFT-based SBR has higher frequency resolution for the harmonic transposition process, resulting in good sound quality. The QMF-based SBR has significantly lower computational complexity. This paper describes the detailed technical aspects of the low complexity QMF-based harmonic SBR tool within USAC. A complexity comparison and the listening test results are also presented in the paper.
ER  -