NDLI: A Novel Bit-Plane Shifting Algorithm for Scalable Audio Coding

Content Provider	IEEE Xplore Digital Library
Author	Bo Zhang Weibei Dou
Copyright Year	2010
Abstract	Bit-plane shifting is one of the strategies for providing Fine Grain Scalability (FGS) in scalable audio coding. It is still desirable to cater the network bandwidth, device capabilities and user preferences. In this paper, a Noise to Mask Ratio (NMR) based bit-plane shifting algorithm is proposed. It is different from just sequential bit-plane coding used in MPEG 4 scalable to lossless (SLS) audio coding, and also different from other existed strategies at lower bit-rate audio coding. It firstly transforms normal bit-planes corresponding with scalefactor bands to the priority bit-planes by a bit-plane shifting according to their NMR. And then, a simple sequential bit-plane coding is used. The priority bit-plane means that a bit-plane corresponding to a scalefactor band which have larger NMR takes a higher priority of coding. Both the objective and the subjective audio quality evaluations give us good scores by comparing with the sequential bit-plane coding of SLS and Just Noticeable Distortion (JND) method. Otherwise, no extra side information is needed and the computational complexity is reduced substantially. The proposed NMR-based bit-plane shifting algorithm obtains good performance in both subjective and objective assessments while leaving the computational complexity at a low level.
Starting Page	356
Ending Page	360
File Size	397552
Page Count	5
File Format	PDF
ISBN	9781424460830
e-ISBN	9781424460847
DOI	10.1109/ICN.2010.63
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-04-11
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Noise to Mask Ratio Scalability Laser sintering bit-plane coding Computational complexity MPEG 4 Standard Audio coding psychoacoustic model Bandwidth scalable audio coding Streaming media Nuclear magnetic resonance Error correction codes Signal to noise ratio
Content Type	Text
Resource Type	Article

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