Popping sound after adding video effects in Premiere Pro

[MaciejIII]

Hi, I'm experiencing a really annoying issue - a popping sound in the AUDIO when I add a VIDEO effect to a video clip on the timeline. It doesn't happen in between some clips, it's around the middle of an audio clip (tho it's not visible on the sound path anywhere to be clear). It's present in the exported video as well. It's not present in the source clip. I'm using Premiere Pro 2021.

Please let me know if you have any ideas on how to fix this! Thanks in advance.

[Michael Grenadier]

really weird... 

just gonna thru out random thoughts.  One of them might help diagnose or solve the problem

does it happen with all video effects?  If not, which effects does it happen to?

what happens if you lock the audio track before adding the video effect?

What happens if you toggle the video track output off after you've added the effect and play the section?

What are you source properties and your sequence settings?

And by any chance are any of your sources from a screen recording or a smartphone?  We see strange things happen when people work with variable frame rate material which is usually from screen recordings and smartphones.  If so, here's the workflow to fix this.

use mediainfo to determine whether your source is variable or constant frame rate

https://mediaarea.net/en/MediaInfo/Download

if it's variable use handbrake to convert to constant frame rate

https://handbrake.fr
and here's a tutorial on how to use handbrake

https://www.youtube.com/watch?time_continue=34&v=xlvxgVREX-Y