A computer-implemented method comprising: receiving, by a computing device, an input phrase from a text generator; determining, by the computing device, a complexity level for an audience; generating, by the computing device, a plurality of target phrases including a modification of the input phrase; generating, by the computing device, respective readability scores for each of the plurality of target phrases; mapping, by the computing device, the plurality of the target phrases to the target audience complexity level to select a particular target phrase of the plurality of the target phrases; and outputting, by the computing device, the selected particular target phrase to a text-to-speech (T2S) component to cause the T2S component to output the selected particular target phrase as audible speech.