As a complete Linux newbie, I'm pleased to report that I successfully installed Flite on my SmartQ 7 today.
I installed libflite1_1.2-release-2.2build1_arm.deb first and then flite_1.2-release-2.2build1_arm.deb using the GDebi Package Installer.
After installation, I was able to get Flite to speak using commands issued from the Run dialog box.
The commands take the classic form of:
flite -t "Insert your text here"
This is good for a quick test but multiple sentences require the use of a file.
Flite can read a file when the given the command:
flite -f filename
Of course, you must tell Flite where your file is stored so your actual command may look something like:
flite -f /home/user/filename
Files can be created using Leafpad but they should be saved with Character Coding set to UTF-8 with CR+LF.
Also, it seems that every string of text to be spoken must be followed by a carriage return.
Experiment with it at your own risk
and see how you like the robotic voice.