Enhanced chroma feature extraction from HE-AAC encoder

Conference contribution
(Conference Contribution)

Publication Details

Author(s): Fink M, Biswas A, Kellermann W
Publication year: 2012
Pages range: 111-124
ISBN: 9781622761180
Language: English


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.

FAU Authors / FAU Editors

Kellermann, Walter Prof. Dr.-Ing.
Professur für Nachrichtentechnik

External institutions
Dolby International AB

How to cite

Fink, M., Biswas, A., & Kellermann, W. (2012). Enhanced chroma feature extraction from HE-AAC encoder. (pp. 111-124). Budapest, HU.

Fink, Marco, Arijit Biswas, and Walter Kellermann. "Enhanced chroma feature extraction from HE-AAC encoder." Proceedings of the Audio Engineering Society Convention, Budapest 2012. 111-124.


Last updated on 2018-17-10 at 09:23