Getting "slapback" or short reverb effect on recording


Am getting some slight “slapback” on my recordings. Sounds like a short reverb effect.
I’ve included a screenshot of recording. Any ideas how to solve?
Screen Shot 2017-04-27 at 6.33.37 PM.png

Please give us more information.

What is your Audacity version? Please give us all three numbers, see the pink panel at the top of the page.

What exactly are you recording, USB cassette recorder, your voice, music from a landline radio, guitar…? Is the reverb being recorded?

What is the make and model number of the USB recording device that you show in your screenshot? If there is a mic attached to that device, what is the mic’s make and model number?

If you are recording a microphone, turn off “Ambient Noise Reduction” in the “Sound” system preferences. See

Also try turning off Transport > Software Playthrough in Audacity, depending on what you are trying to achieve. This sends the recording back, after a delay, to the playback device listed in Audacity (USB audio CODEC in your case).