Audio popping sound

Howdy!

I am currently working on a football editing project. There’s a certain clip that when the audio comes in, it’s creating a very audible popping sound. There is no audio clip right before it (except a music mp3 that is over the entire video) so its on a different track and there’s no transition. I already added a “fade in audio” as well. I don’t hear the popping sound while I’m editing, It only is a problem with the exported mp4. Any help or suggestions would be much appreciated. Thanks.

Can you share the audio file, possibly in a private message if needed?

What is the best way to do this? It doesn’t let me upload mp3 when replying.

I am using the 3:54 - 4:05 mark of the file I uploaded to that link.

There are a couple other places where I’m getting subtle popping sounds in the exported video where I wouldn’t normally expect them. I’m wondering if I’m just doing something wrong when exporting?

Two things:

  1. There are some reported and fixed-but-not-yet-released bugs in this category.
  2. Change export to not use AAC based on this thread. Consider changing to ac3 or mp3 in MP4.

appreciate the help!

I tried using ac3 codec and I’m unfortunately still getting the same thing. This didn’t happen the last time I used shotcut to make a similar Youtube video, so I’m pretty lost. Like you said, maybe just a bug.

I was unable to reproduce the problem. I started with a simple one video track at 29.97 fps project; what fps are you using? I added an audio track and put a sine wav on it to simulate your “music mp3 that is over the entire video.” A sine wav makes it easier to hear and see artifacts. Then, using the mp3 file you provided I set in at 3:45:00 and out at 4:05:00 (I assume you were using MM:SS). I added this to a second audio track at 5 seconds from start

Next, I exported using defaults without hardware encoder and with parallel processing turned on. Finally, I loaded the resulting MP4 into Audacity to listen and inspect. I did not hear it, and when I zoom in at the 5 second point, I did not see any unexpected spikes or dropouts.

Followup suggestions:

  1. Try turning off parallel processing in Export > Video
  2. move the audio clip by one frame to the left or right
  3. trim the audio clip by one frame

I believe it was set to 25.000 fps by default. I’ve been trying to use the “Youtube” default settings. I’m pretty new to editing so I’m not super knowledgeable with all these things.

With your project open, click Master in the top left corner of the timeline and view Properties to see. You should match the Video Mode to the main/majority of your video footage.

I changed my project used for this problem report to 25 fps but still did not reproduce it with similar result in Audacity review. Sorry

This may be a suggestion that might help you. What happens with my holiday movies that sometimes when the new clip starts there is a popping or clicking sound. I use a Canon SX280IS. My solution for that is as follows: Cut a slight bit (0.5 to 2 seconds) of the beginning of the video clips and do an audio fade in on every clip of 00:00:00;02, as low as the setting will go, sometimes a 00:00:00;05 is needed.
That is my solution to remove the irritating pops, clicks or other noises.

We recently made a few fixes for audio pop and clicks in the engine. These will be in the next version 20.06 due in June.