Implement µ-law expander for source coding
The Mu-Law Expander block recovers data that the Mu-Law Compressor block compressed. The formula for the µ-law expander, shown below, is the inverse of the compressor function.
The input can have any shape or frame status. This block processes each vector element independently.
The µ-law parameter of the compressor.
The peak value of the input signal. This is also the peak value of the output.
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 Sklar, Bernard. Digital Communications: Fundamentals and Applications. Englewood Cliffs, N.J.: Prentice-Hall, 1988.