I use TextAloud to record audiobooks. Most other companies tell you that their voice is 16 khz or 22 khz but I do not see the bit rate for the Cepstral voices. TextAloud advises that the best recordings are made by using the native bit and sample rate of the voice, and usually mono.
What is the native bit and sample rate of, say, the Cepstral Lawrence voice, and is that the best rate for optimal clarity?