It's the same voices in both FS9/FSX. Perhaps you mean the XPack II addition to PFE which makes the voices sound much more like VHF radio.
pench wrote: the voices in the version for FSX don't sound all computerised do they??
Its just ive just seen a vid on youtube with the 777 and it sounds like the talk application on Windows!
Did you check these videos? viewtopic.php?f=4&t=15 note the newer ones also use Flight Deck companion for the pilot voicesto run checklists and such.
Also, it's nearly impossible to make voices perfectly natural in an application like this where sentences need to be put together from clips. PFE can't put live controllers inside your computer.