speech scientist rupl patel and jeff meltzner are giving sarah a created. >> how heather? >> new. >> the "star-telegram" standardized choice from her text to speech computer program talkers. >> how did you come up with the idea for building voices. >> in 2002 i was at a conference in denmark and i saw a girl and a man using different devices but the exact voice. i saw that happening all around me. >> what's groundbreaking about sarah's voice is that itsnique milking the donor speech with the few sounds sarah can make to capture sarah's personality. >> is there any art industry or psychology involved in creating a voice? >> yeah. i think every science has an art form to it as well. in the case of making a custom voice, it's not only about is it understandable? it's about is it authentic and does it resonate with the person using it? do they feel like it's them? so sarah, amy, what we have done is gotten two voices ready for you today. and we want to play them and whichever one you choose, we will load to your device. >> voice 1. >> hi. my name is sarah. i am 16 years old an