13. A computer-implemented method comprising: receiving text comprising a first text portion and a second text portion; performing text-to-speech (TTS) processing on the first text portion to determine a first TTS result; performing first TTS processing on the second text portion to determine a second TTS result; determining first output data corresponding to the first TTS result and second TTS result; receiving input data corresponding to a correction to a portion of the first output data, the portion of the first output data corresponding to the first text portion; processing the input data to determine an audio characteristic corresponding to the correction; performing second TTS processing, using the audio characteristic, on the first text portion to determine a third TTS result representing the first text portion and comprising a joining speech unit selected based at least in part on the second TTS results; and determining second output data corresponding to the third TTS result and the second TTS result.
19. The computer-implemented method of claim 13 , wherein the audio characteristic comprises at least one of a pitch, power, intonation, emotional context, or narrative context.