Improved arithmetic coding for Time-Warped MDCT based audio coding

Bayer S, Edler B (2013)


Publication Type: Conference contribution

Publication year: 2013

Publisher: IEEE

Pages Range: 538-542

Conference Proceedings Title: Proceedings of the {IEEE} 2013 Int. Conference on Acoustics, Speech and Signal Processing ({ICASSP})

Event location: Vancouver, Canada

ISBN: 978-1-4799-0356-6

DOI: 10.1109/ICASSP.2013.6637705

Abstract

The Time-Warped Modified Discrete Cosine Transform (TW-MDCT) improves the energy compaction for harmonic signals with varying fundamental frequency compared to the plain MDCT. Adaptive context based entropy coding has the potential to provide higher gain over memoryless entropy coding. But in combination with the TW-MDCT, the context based adaptive coding may lead to suboptimal coding. This paper presents an algorithm for improving the context for the TW-MDCT. This is mainly achieved by exploiting already available information on the frequency variation needed by the TW-MDCT. This results in an improved entropy coding.

Authors with CRIS profile

How to cite

APA:

Bayer, S., & Edler, B. (2013). Improved arithmetic coding for Time-Warped MDCT based audio coding. In Proceedings of the {IEEE} 2013 Int. Conference on Acoustics, Speech and Signal Processing ({ICASSP}) (pp. 538-542). Vancouver, Canada: IEEE.

MLA:

Bayer, Stefan, and Bernd Edler. "Improved arithmetic coding for Time-Warped MDCT based audio coding." Proceedings of the Proceedings of the {IEEE} 2013 Int. Conference on Acoustics, Speech and Signal Processing ({ICASSP}), Vancouver, Canada IEEE, 2013. 538-542.

BibTeX: Download