Excellent advice!!! That appeared to help, though I'm using windows 11, and the adjustment interface only gives me a percentage (which I reduced to 50%). Measurements had repeatable results after making this adjustment!Reduce the recording level.
How do you recommend I test? White/pink noise? What is the best way to record this information in REW (or do I need another software?) RTA? Measurement does not have the ability to test using noise.