4. The device of claim 2 further comprises the processing module generating the speech characteristic probabilities by: for a subsequent frame of the plurality of frames: individually correlating a second digital signal component of the subsequent frame with the at least some of the plurality of acoustical property sets to produce a second set of acoustical property correlations; interpreting the second set of acoustical property correlations with respect to the speech characteristic probability for the subsequent frame to produce a second index; addressing the speech characteristic codebook based on the second index to retrieve a second speech characteristic sample; and correlating the second digital signal component with the second speech characteristic sample to produce the speech characteristic probability for the subsequent frame.
4. The device of claim 2 further comprises the processing module generating the speech characteristic probabilities by: for a subsequent frame of the plurality of frames: individually correlating a second digital signal component of the subsequent frame with the at least some of the plurality of acoustical property sets to produce a second set of acoustical property correlations; interpreting the second set of acoustical property correlations with respect to the speech characteristic probability for the subsequent frame to produce a second index; addressing the speech characteristic codebook based on the second index to retrieve a second speech characteristic sample; and correlating the second digital signal component with the second speech characteristic sample to produce the speech characteristic probability for the subsequent frame. 5. The device of claim 4 further comprises the processing module generating the speech characteristic probabilities by: for a further subsequent frame of the plurality of frames: identifying one or more non-volatile acoustical property sets of the at least some of the plurality of acoustical property sets having, for preceding frames, a favorable acoustical property correlation; individually correlating a third digital signal component of the further subsequent frame with the at least some of the plurality of acoustical property sets less the one or more non-volatile acoustical property sets to produce a third set of acoustical property correlations; interpreting the third set of acoustical property correlations with respect to the one or more non-volatile acoustical property sets to produce a third index; addressing the speech characteristic codebook based on the third index to retrieve a third speech characteristic sample; and correlating the third digital signal component with the third speech characteristic sample to produce the speech characteristic probability for the further subsequent frame.