Provided is a system and method for muting zero level pulse code modulated
(PCM) samples. PCM samples are received as inputs to a digital to analog
converter (DAC) including a PCM input module and a mapping module. The
method includes monitoring a level of the PCM samples received as inputs
to the PCM input module and sensing consecutive zero level PCM samples
from among the monitored input PCM samples. The method also includes
muting a PCM input to the mapper when a predetermined number of zero
level PCM samples have been sensed.