libgnome-speech7 software package provides GNOME text-to-speech library, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libgnome-speech7
libgnome-speech7 is installed in your system.
Make ensure the libgnome-speech7 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libgnome-speech7 *
You will get with libgnome-speech7 package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Libraries |
| Package | libgnome-speech7 |
| Version | 1:0.4.25-5 |
| Description | GNOME text-to-speech library |
| Sub Section | libs |