What are some alternatives?
When comparing Noise Blocker and NVIDIA RTX Voice, you can also consider the following products
Krisp - Mute the background noise during your calls
SoliCall Pro - Removes noise & echo from any VoIP call. Can also be used for call recording.
NoiseGator - A simple noise gate app intended for use with VOIPs like Skype.
NoiseTorch - NoiseTorch is an open source app for Linux with PulseAudio. It creates a virtual microphone that suppresses noise. Use any conferencing or VOIP app you like and simply select the NoiseTorch Virtual Microphone as input to remove unwanted noise.
DeepSkyStacker - DeepSkyStacker is a freeware for astrophotographers that simplifies all the pre-processing steps of...
Ardour - Record, edit, and mix on Linux, Mac OS X, and Windows.