Speech Rate and Voice
Voice speech rate is adjusted separately for each language. The default rate is always set at 160 words per minute for all languages except east asian languages. Chinese, Japanese and Korean are set at 210 words per minute.
There are a variety of Ivona, Acapela, and NeoSpeech voices to choose from.
#Change the speech rate
Click Speech at the bottom of the playlist or the track screen. Use the slider to adjust the speech rate.
#Pick a voice you like
Tap the name of the preferred voice. A list of native and installed voices will appear. You will be able to sample each of the voices listed by pressing the play button on the left-hand side.
If you don't see voices for a particular language tap Show installed voices for and check all the languages you want to configure.
#Change preferred voice
To start using a voice, tap the voice name then tap Set as Preferred.
Click Voices in the top of the screen.
A list of voices will appear. You will be able to sample each of the voices listed by pressing the play button on the left-hand side. In order to adjust the speech rate use the progress bar shown below.
Click Choose to use the voice you selected as your preferred voice for a particular language.