Talk:Delta modulation

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[edit] Adaptive Delta Modulation (ADM)

The next version of Delta modulation (DM) is the Adaptive Delta modulation. In ADM, the step size is not fixed unlike in DM. Rather, when slope overload occurs, the step size becomes progressively larger, thereby allowing modulated signal to catch up with the modulating signal more rapidly. Thus, ADM reduces the slope error at the expense of increasing quantization error. Linear DM has less quantization error while more slope error. But, practically, for speech transmission, there must be as less slope error as possible and quantization error is acceptable in limits. --Krishnavedala 10:06, May 15, 2005 (UTC)

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