Sound in recording goes weird after a few seconds (SOLVED)

I’m trying to record something on my piano and after a few seconds the audio get’s all wacky - almost like a hollow sound.
I tried just recording myself humming to see if it was my piano. It’s not.
Any suggestions? Audacity used to work fine for me up till a month ago.

I’ve attached an audio file.

Windows machines come out of the plastic wrap all set for video and audio conferencing. The system thinks your playing is air conditioning noise and is trying its best to cancel it out.


Thanks kozikowski. It works now :slight_smile: