My previous upload had an error in the file structure for the us1, us2 and us3 voices. That is not fixed and a new upload has been placed. When you unzip a voice file, it can have two folders deep where it should have one. Objects\mbrola\us1\us1\... is incorrect. Objects\mbrola\us1\... is correct.
This is all taken care of in the zip file above. Also as of 8/27/2024, I replaced the zip file which I had accidentally removed from my website. It is now available again. Please let me know if you encounter problems.