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A time domain based efficient block decision algorithm for audio coders
Motorola India Electron. Ltd., Bangalore .
KTH, School of Electrical Engineering (EES), Signal Processing.ORCID iD: 0000-0002-4265-9490
2007 (English)In: International Symposium on Communications and Information Technologies, 2007. ISCIT '07, IEEE Press, 2007, 1077-1081 p.Conference paper (Refereed)
Abstract [en]

In typical audio encoders the block decision is done either using time-domain techniques like energy computation or frequency domain techniques like temporal noise shaping (TNS) [1], [2]. The time-domain energy computation based decisions are less effective for detecting many of the stringent scenarios presented by test cases like castanets and fatboy. The frequency domain based algorithms have better decision making capabilities, however they are inherently complex as they require the computation of the FFT, additionally in case of TNS the computation of LPC (Linear Prediction coding) in the frequency domain. An improved time-domain technique with better block decision capability compared to TNS and with lesser computational complexity is proposed in this paper.

Place, publisher, year, edition, pages
IEEE Press, 2007. 1077-1081 p.
National Category
Signal Processing
URN: urn:nbn:se:kth:diva-119854DOI: 10.1109/ISCIT.2007.4392176ISBN: 978-1-4244-0976-1OAI: diva2:612737
IEEE ISCIT 2007,17-19 Oct. 2007 Sydney, NSW

QC 20130610

Available from: 2013-03-24 Created: 2013-03-24 Last updated: 2014-10-29Bibliographically approved

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