1. A computer-implemented method for audibly indicating footnotes in text during text-to-speech processing, the method comprising: obtaining a target sentence to convert from text to speech, the target sentence including primary text and a footnote associated with the primary text; identifying a textual indicator associated with the footnote in the primary text; generating first speech data corresponding to a first portion of the primary text, the first portion preceding the textual indicator; generating second speech data corresponding to a second portion of the primary text, the second portion following the textual indicator; generating an audio tone corresponding to the textual indicator, the audio tone comprising a beeping sound; and outputting first audio including the first speech data, followed by the audio tone, then followed by the second speech data.
1. A computer-implemented method for audibly indicating footnotes in text during text-to-speech processing, the method comprising: obtaining a target sentence to convert from text to speech, the target sentence including primary text and a footnote associated with the primary text; identifying a textual indicator associated with the footnote in the primary text; generating first speech data corresponding to a first portion of the primary text, the first portion preceding the textual indicator; generating second speech data corresponding to a second portion of the primary text, the second portion following the textual indicator; generating an audio tone corresponding to the textual indicator, the audio tone comprising a beeping sound; and outputting first audio including the first speech data, followed by the audio tone, then followed by the second speech data. 2. The computer-implemented method of claim 1 , further comprising: detecting contact on a touchscreen of a computing device within a first period of time following output of the audio tone; determining that the contact corresponds to a first arc gesture, the contact traveling along both a horizontal axis of the touchscreen and a vertical axis of the touchscreen from a first point on the touchscreen to a second point on the touchscreen, a difference between a first horizontal coordinate associated with the first point and a second horizontal coordinate associated with the second point exceeding a horizontal threshold, and a difference between a first vertical coordinate associated with the first point and a second vertical coordinate associated with a midpoint of the contact exceeding a vertical threshold; identifying supplemental text associated with the footnote in response to the first arc gesture; generating supplemental speech data corresponding to the supplemental text in response to the first arc gesture; and outputting second audio including the supplemental speech data in response to the first arc gesture.