18. A system for use in communicating speech signals to a receiving party, the system comprising: a transducer for converting speech utterances of a speaker into a wideband electronic waveform; a speaker-dependent data generator adapted to generate speaker-dependent data correlating narrowband versions of speech utterances of the speaker with corresponding wideband versions of the speech utterances of the speaker, where the wideband versions of the speech utterances of the speaker correspond to the wideband electronic waveform provided through operation of the transducer; a transmitter adapted to transmit the speaker-dependent data as well as a narrowband signal corresponding to a narrowband version of the speech utterances of the speaker, where the narrowband version of the speech utterances of the speaker comprise the speech utterances that are to be communicated to a receiving party.
18. A system for use in communicating speech signals to a receiving party, the system comprising: a transducer for converting speech utterances of a speaker into a wideband electronic waveform; a speaker-dependent data generator adapted to generate speaker-dependent data correlating narrowband versions of speech utterances of the speaker with corresponding wideband versions of the speech utterances of the speaker, where the wideband versions of the speech utterances of the speaker correspond to the wideband electronic waveform provided through operation of the transducer; a transmitter adapted to transmit the speaker-dependent data as well as a narrowband signal corresponding to a narrowband version of the speech utterances of the speaker, where the narrowband version of the speech utterances of the speaker comprise the speech utterances that are to be communicated to a receiving party. 21. The system of claim 18 , where the transmitter is adapted to transmit the speaker-dependent data and the narrowband signal over a single transmission channel.