Trying to download Nyquist Analyze

This is where I warn you that ACX Check can be fooled. It needs at least 3/4 second of clean room tone (background sound) to measure Noise. In general, a straight narrative reading doesn’t have silences quite long enough to work. Give it a second (or longer) of dead quiet before you start presenting.

Freeze and don’t move. The tool can hear your pants moving.

This is one method of AudioBook Mastering.

Let us know if you have troubles.