38. The apparatus of claim 33 , further comprising instructions executable to update at least one parameter.
38. The apparatus of claim 33 , further comprising instructions executable to update at least one parameter. 39. The apparatus of claim 38 , wherein the updated parameter comprises one or more of a Normalized Auto-correlation Coefficient Function at pitch parameter, a three frame averaged voiced energy parameter, a look ahead frame energy parameter, a previous three frame average voiced energy parameter and a voice activity detection parameter.