Is it true that Yamaha Resampled Older Voices Like Megavoice Brass For Example.

[Keyboard Master]

Hi Everyone I know these questions keep popping in my head but i also talked about in another thread here Guets are not allowed to view links. In order to access the links, please Register or Login But im also wndering about older voices that started from the Tyros 1 2 3 4 and 5 Did they resample certian ones to inprove them. if so how did they do it. Any Answer Id apricciate.