When I record with the usb microphone the playback is fast, and also has a crackly noise. Prior to this, the app was working perfectly. I tried the microphone on other devices and it works perfectly. I recorded without the microphone, and the playback is at the proper speed. Any suggestions??
Maybe you recorded at 44.1 KHz and are playing back at 48 KHz?
Check the bottom LHS, what does it say?
You can change it thus:
I record with the usb microphone
Whose name is?
Did you actually start over? Unplug the microphone. Shift+Shutdown Windows. Wait. Start. Plug the microphone in and let it settle. Start Audacity.
See that the microphone is selected.
If you have headphones, you may be able to click in the record bouncing meters and hear yourself. Otherwise make a recording. Is it OK now?
It’s not that unusual for the microphone connection to get corrupted if you used an audio application that likes to change settings and configurations. Audacity is not a massive corporation that can check every microphone with every application and every operating system.