Apparatus and Method for Converting ?-law and A-law in Switch

摘要

The present invention when the serial audio signal of the first method is received, and determines whether or not the currency system conversion, and, if you need to convert is determined that the currency system, extracting a second system code value corresponding to the first system code value, wherein using the second system code value extracted as to convert the serial audio signal of the first system in series audio signal of the second system, u / a law conversion function because the treatment in series to implement a simple, digital If simple addition u / a law conversion is not in the exchange it is possible, even u / a law conversion.