I have ported the famous VST Speek plugin for Linux :
it’s a Linux native VST and should work with :
please note that it’s a beta and could be unstable or suffer strange bugs.
Note about the key press :
Some hosts “steal” the keyboard focus, so you can’t type any words in the text zone.
It happens with Ardour 4 for example : and VST effEditKeyUp / onKeyUp (and down) are not yet implemented (“keypress are not sent to LINUXVST”) in Ardour.
That’s why i came up with a workaround : click on “Config” button then check “dirty hack”.
and now you should be able to type the words in the text field.