Figure 2
From: S-EMG signal compression based on domain transformation and spectral shape dynamic bit allocation
Illustrative examples. Decreasing Square-Root shape (DSR) and Rotated Hyperbolic Tangent Bit Allocation shape (RHT) models. The horizontal axis indicates the respective frequency bands and the vertical axis the number of bits associated with each frequency band. Smooth behavior of mathematical curves models can be viewed in these examples drawn in continuous lines. Shown in the dashed lines are the amounts of bits associated with variable B[m]. Using Equations (2) and (12) the quantized coefficients can be obtained.