do I can download the Mac voices on windows?
Only way you would be able to is through a synth bridge which uses a real mac as a synthesizer for nvda. But you either need a real mac, or a mac virtual machine if your system is good enough to handle it.
That is about the only thing I miss from the mac. The built in voices were awesome. Especially the novelty voices. Windows has gotten better but that point goes to OSX for sure. You can get Samantha and Tom and those types of voices but you have to pay.