The Catch-And-Release vocal synthesis module replaces the traditional human voicebox with something very similar that can be tweaked and tuned digitally. Thus, the bearer is capable of normal speech, but can also fine-tune their vocal output.
With any auditory recording and a computing device, the bearer of a Catch-And-Release system can develop a vocal profile and imprint it upon the synthesis module, sounding 99.5% similar to the speech sample (provided it is of sufficient length).