You tried to download it from where exactly?Tried to download it and it took a while before telling me, "Page isn't available." Looks like nvidia took it down.
![www.nvidia.com](/forums/proxy.php?image=https%3A%2F%2Fwww.nvidia.com%2Fcontent%2Fdam%2Fen-zz%2FSolutions%2Fgeforce%2Fnews%2Frtx-voice-guide%2Farticle_geforce-broadcasters-rtx-voice-og-no-text1200x630.jpg&hash=d0788e70417c8d0d5a71f3b2bf79053a&return_error=1)
NVIDIA RTX Voice: Setup Guide
A quick-start guide to installing and using RTX Voice beta, NVIDIA's background noise removal plugin.
www.nvidia.com