Log-linear companding—A digital companding technique

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 01 Jan 1969Publisher:Institute of Electrical and Electronics Engineers (IEEE)Journal:Proceedings of the IEEE, volume 57, pages 1,776-1,777 (issn: 0018-9219,

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Authors: G.G. Apple; P.A. Wintz;

doi: 10.1109/proc.1969.7403

Log-linear companding—A digital companding technique

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Abstract

A new method of near-logarithmic companding is proposed. The method consists of first uniformly quantizing each sample and then processing the resulting binary number digitally. This is in contrast to the usual scheme of first compressing the input and then uniformly quantizing it. The method presented here is extremely simple to implement and requires no arithmetic operations. The inverse transformation is equally simple to implement.

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