5. The system of claim 1 , wherein the module, when executed, is further configured to: transmit, to the plurality of client devices, a control text and a corresponding control recording of a human reading the control text; receive, from the first client device: a first quality score of the audio representation; and a second quality score of the control recording; and use the first quality score and the second quality score to modify, at least in part, the plurality of speech segments or the plurality of conversion rules.
1. A system comprising: one or more processors; a computer-readable memory; and a module comprising executable instructions stored in the computer-readable memory, the module, when executed by the one or more processors, configured to: generate an audio representation of a text, wherein the audio representation comprises a sequence of speech segments selected from a plurality of speech segments, wherein the selection of the sequence of speech segments is based at least in part on a plurality of conversion rules, and wherein each speech segment of the sequence of speech segments corresponds to a subword unit of the text; transmit, to a plurality of client devices, the text and the audio representation; receive, from a first client device of the plurality of client devices, first feedback data associated with the audio representation; receive, from a second client device of the plurality of client devices, second feedback data associated with the audio representation; and use the first feedback data and the second feedback data to modify, at least in part, the plurality of speech segments or the plurality of conversion rules.