This article explains how you can make noiseless calls using Krisp with Audacity on your Mac/Windows device. All you need is a 2-sided configuration.
Select Krisp Microphone from the audio panel. For that, make sure to have Device toolbars checked from View >>> Toolbars.
Open Krisp and pick the physical microphone and speaker you wish to use and turn on Noise Cancellation toggles.
Start your noiseless recordings.
InfoThe "No call in progress" indicator will be switched to "Used by Audacity" when there is an ongoing recording.