Implement A-law compressor for source coding
The A-Law Compressor block implements an A-law compressor for the input signal. The formula for the A-law compressor is
where A is the A-law parameter of the compressor, V is the peak signal magnitude for x, log is the natural logarithm, and sgn is the signum function (sign in MATLAB® software).
The most commonly used A value is 87.6.
The input can have any shape or frame status. This block processes each vector element independently.