Running Slow, Recording and Playback

The program is running slow, both trying to record or playback from a file. I have Windows 10 with a Samson USB mic. Using a year without issue and now it runs in slow motion. Reinstalled Audacity a few time no help. Thanks UGD

The current version of Audacity is 2.3.0. The version number can be found in “Help menu > About Audacity”.
If you have an old version, you can get the current version via the Audacity website:

This is not a “known issue” with Audacity, though I have noticed there are sometimes extreme slowdowns when Windows 10 is doing an update in the background. If that’s the problem, then the solution is to manually run Windows update, reboot after the update, and repeat as necessary until Windows Update says that there are no more updates.

Another fairly common problem for extreme slowness can be anti-virus software. Some anti-virus software needs to be told to NOT check “.AU” files (Audacity project data files). The easy way to test if this is the problem:

  1. Ensure that the anti-virus is fully up to date.
  2. Manually run a FULL virus scan (preferably one that starts on reboot before Windows is running) - this can take several hours to complete (tip: run overnight)
  3. Disconnect from the Internet, and shut down the anti-virus.
  4. Test Audacity.
  5. Don’t forget to re-enable the anti-virus when you have finished testing.