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In this paper, an S-EMG signal encoder based on wavelet transform and bit allocation for sub-bands is presented. Were implemented and compared two methods of allocating bits: linear decreasing spectral profile and hyperbolic tangent decreasing spectral profile. Comparisons with other encoders in the literature are shown. In the development of the encoder, always sought to maximum compression, but without loss of fidelity of the reconstructed signal, a fundamental characteristic of the analysis of electromyographic signals. Developed algorithm showed very satisfactory and promising results.