The technology for emotional speech colouring.
This technology will be helpful for tired users with "fading" voice, unable to naturally add emotions to his/her speech.
Such a modification to the speech changes the voice timbre; it is a thin and delicate change, as naturalness and recognition of the voice are not affected.
This technology has "cumulative" action, the effect of using it increases with the duration of the dialog, and allows adding appropriate accents to the speech of the user that are unavailable or hard to express to some reason.
This module can be used in combination with the "Persuasive Voice" module.