1. A method comprising: sensing a vocal tract of a speaker during non-sounded speech communication using an ultra wide band (UWB) radar system coupled to a wireless communication device; mapping information associated with the sensed vocal tract to a voice model to generate a simulation of the vocal tract during sounded speech communication; and generating at least components of a voice for the speaker based on the simulation to enable the voice for the speaker to be reproduced in real-time via a voice encoder (vocoder).