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Which of the following conversion is performed by using a lookup table?(a) DPCM(b) ADPCM(c) Between DPCM and ADPCM(d) Linear cdec and a-lawI have been asked this question in final exam.This interesting question is from Codecs in portion Interfacing to the Analog World of Embedded Systems

Answer» RIGHT ANSWER is (d) LINEAR cdec and a-law

Easiest explanation: The conversion between a-law/µ-law and a linear DIGITAL signal or between µ-law and a-law is PERFORMED by a lookup table.


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