Have any tracker for C64 speach synthesizer in like speach synthesizer in FL studio?
I'm not sure, but I'm sure it's (somewhat) possible, with the use of filters. Although I doubt it will sound very good.
It's definitely possible.
Just check out some of Jammer's tunes.
They're all seperate instruments in Jammer's stuff afaik. (he uses GoatTracker) You could run some of his tracks through SidDump and see how he's doing it though. Agemixer's "Freestyler" is another nice example.
There was a formant speech synthesizer a while ago but afaik there's nothing useable in a tracker unless you want to code one yourself.