DEMO.DESIGN
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Mu-Law encoding involves passing the analogue signal through a compressor that conforms to the Mu-Law before quantizing it. I expect what you need to do is to "expand" the digital values by performing the reverse transformation on the digital values held in the file. According to "Principles of Communication Systems", Taub & Schilling, McGraw Hill, 1986 pg 245 A Mu law compressor relates input to output by the relation y = + log(1+mu/x) - ______________ log(1+mu) the plus sign applies when x is positive, and the minus sign is used when x is negative where x = Input Voltage/ V and y = Output Voltage/ V range of allowable voltages is -V..+V The parameter mu determines the degree of compression, and a common value is 255

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