Static sound only

I have a usb flash drive type recorder for my meetings. Everything was fine until I had to reduce the background noise in one of the meetings. After I saved the reduced noise version, all of my recordings have only static. How can I fix this?

Did you over-write the original file? If you don’t have the original you’re probably out-of-luck…

With Noise Reduction there is an option to keep the residual noise and throw-away the “good” audio. Or there are other ways to damage the sound with Noise Reduction.