6. A computer-implemented method comprising: applying, by a text-to-speech voice development system comprising one or more computing devices, a first compression technique to a portion of a voice recording to create a first compressed portion; and applying, by the voice development system, a second compression technique to the first compressed portion to create a second compressed portion; wherein the second compression technique is different from the first compression technique, and wherein at least one of the first compression technique or the second compression technique comprises time-domain compression.
6. A computer-implemented method comprising: applying, by a text-to-speech voice development system comprising one or more computing devices, a first compression technique to a portion of a voice recording to create a first compressed portion; and applying, by the voice development system, a second compression technique to the first compressed portion to create a second compressed portion; wherein the second compression technique is different from the first compression technique, and wherein at least one of the first compression technique or the second compression technique comprises time-domain compression. 17. The computer-implemented method of claim 6 , further comprising determining a level of compression to apply to the first compressed portion based at least in part on a linguistic feature of a text corresponding to the portion.