Enhanced chroma feature extraction from HE-AAC encoder
Fink M, Biswas A, Kellermann W (2012)
Publication Language: English
Publication Status: Published
Publication Type: Conference contribution, Conference Contribution
Publication year: 2012
Pages Range: 111-124
Event location: Budapest
ISBN: 9781622761180
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84867558291∨igin=inward
Abstract
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.
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Netherlands (NL)How to cite
APA:
Fink, M., Biswas, A., & Kellermann, W. (2012). Enhanced chroma feature extraction from HE-AAC encoder. In Proceedings of the Audio Engineering Society Convention (pp. 111-124). Budapest, HU.
MLA:
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.
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