Due to their very large size, Adobe decided to make the installation of the Text-To-Speech agents optional. Adobe Captivate 2017 ships with one voice package that installs several speech agents for various languages. Note that Captivate is also able to pick up third-party Speech Agents installed on your system.
The Speech agents of Captivate can be downloaded from the following locations:
- For Windows 64 bit: http://www.adobe.com/go/Cp2017_win64_voices_installer
- For Mac: http://www.adobe.com/go/Cp2017_mac_voices_installer