The noise gate for Audacity is now included with Audacity 2.4.1. https://manual.audacityteam.org/man/noise_gate.html
Audacity 2.4.1 is available via the Audacity website: https://www.audacityteam.org/download/mac/
The noise gate for Audacity is now included with Audacity 2.4.1. https://manual.audacityteam.org/man/noise_gate.html
This is a known issue that occurs in the builds that use the old autotools build chain. It does not occur if Audacity is built with cmake. The build instructions included in the source code say to use cmake.