19. The non-transitory computer-readable storage medium of claim 14 , further comprising program code to identify a second location in the input text for a second breath, and wherein the synthesized speech comprises a second breath sound at the second location.
19. The non-transitory computer-readable storage medium of claim 14 , further comprising program code to identify a second location in the input text for a second breath, and wherein the synthesized speech comprises a second breath sound at the second location. 21. The non-transitory computer-readable storage medium of claim 19 , further comprising program code to determine a distance between the identified location and second location, and wherein the second breath sound is based at least in part on the distance.