Enhanced Chroma Feature Extraction from HE-AAC Encoder

Fink M, Biswas A, Kellermann W. Enhanced Chroma Feature Extraction from HE-AAC Encoder. In: AES Convention 132. Audio Engineering Society; 2012. Paper 8637. Available from: https://aes.org/publications/elibrary-page/?id=16275

@inproceedings{Fink2012_16275,
  author = {Fink, Marco and Biswas, Arijit and Kellermann, Walter},
  title = {{Enhanced Chroma Feature Extraction from HE-AAC Encoder}},
  booktitle = {AES Convention 132},
  note = {Paper 8637},
  year = {2012},
  month = apr,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16275}
}

TY  - CPAPER
TI  - Enhanced Chroma Feature Extraction from HE-AAC Encoder
AU  - Fink, Marco
AU  - Biswas, Arijit
AU  - Kellermann, Walter
T2  - AES Convention 132
M1  - Paper 8637
PY  - 2012
DA  - 2012/04/06
UR  - https://aes.org/publications/elibrary-page/?id=16275
PB  - Audio Engineering Society
LA  - en
AB  - A perceptually enhanced chroma feature extraction during the HE-AAC audio encoding process is proposed. Extraction of chroma features from the MDCT-domain spectra of the encoder and its further enhancement utilizing the perceptual model of the encoder is investigated. The main advantage of such a scheme is a reduced computational complexity when both chroma feature extraction and encoding is desired. Specifically, the system is designed to produce reliable chroma features irrespective of the block switching decision of the encoder. Three methods are discussed to circumvent the poor frequency resolution during short blocks. All proposed enhancements are evaluated systematically within a well-known state-of-the-art chord recognition framework.
ER  -