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How to fix pop sound
Posted: Wed May 24, 2017 11:29 am
by chrisauda
How can I fix the pop sound that comes about if I paste something or cut stuff out in between? What is this sound called (a pop?). Was wondering if there was an audacity fix besides re-recording.
audacity 2.1.3
Re: How to fix pop sound
Posted: Wed May 24, 2017 11:41 am
by steve
The "click" can be seen as a red vertical line if you switch to Spectrogram view (
http://manual.audacityteam.org/man/spec ... _view.html)

- Click / pop before repair
- tracks000.png (166.02 KiB) Viewed 488 times
and the click can be repaired using the Repair effect:
http://manual.audacityteam.org/man/repair.html

- Click / pop after repair
- tracks001.png (164.7 KiB) Viewed 488 times
Note that there is more than one click, so repeat the repair for each click.
The "Ctrl + R" shortcut is useful for repeating the last used effect. (
http://manual.audacityteam.org/man/effe ... ast_Effect)
Re: How to fix pop sound
Posted: Wed May 24, 2017 12:37 pm
by chrisauda
Steve, thanks for the step-by-step. In Spectogram view, I highlight the red column to "repair" and get "Repair effect for short samples...select tiny fraction..." message. I've selected a bunch of widths and the vertical line/pop sound is not going away, getting same message. Am I doing something wrong?
Re: How to fix pop sound
Posted: Wed May 24, 2017 12:56 pm
by steve
chrisauda wrote: "Repair effect for short samples...select tiny fraction..." message
You probably need to zoom in closer so that you can select a small region around the click. (see:
http://manual.audacityteam.org/man/zooming.html)
You only need to select the middle part of the red line like this;

- firsttrack000.png (63.75 KiB) Viewed 482 times
If I zoom in even closer in the normal "Waveform" view, you can see a little "step" in the waveform.

- firsttrack001.png (9.93 KiB) Viewed 482 times
That little jump is what is causing the click, and the Repair effect smooths that out for us

- firsttrack002.png (9.77 KiB) Viewed 482 times
Re: How to fix pop sound
Posted: Wed May 24, 2017 1:21 pm
by chrisauda
Great, that helped! Highlighting the center of the column was the trick.
Re: How to fix pop sound
Posted: Wed May 24, 2017 2:46 pm
by waxcylinder
I find it helps to use spectrogram view to locate the click/pop and the switch to waveform view to make the repair.
See:
http://manual.audacityteam.org/man/clic ... _view.html
WC