How does companding compress dynamic range? - Signal Processing

Regarding when you 'compress' the signal, I typically see diagrams like this: And the companding curve: I can only see how the companding curve achieves a higher average SQNR by rounding down hig

Plots of the exponential companding and proposed method for d = 2

Comparison of µ-law and A-law algorithms. The µ-law algorithm

Transfer function of µ-law companding.

COMPANDING-CIRCUIT-USING-OPAMPS, Mini Projects

Multiband Dynamic Range Compression - MATLAB & Simulink

Companding algorithms for digital communication

COMPANDER, Mini Projects, Electronics tutorial

PDF] Optical Companding

Dynamic range compression - Wikipedia