Removing parts creates crackling sound

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beginner94
Posts: 2
Joined: Sun Sep 19, 2021 8:44 am
Operating System: Windows 10

Removing parts creates crackling sound

Post by beginner94 » Sun Sep 19, 2021 8:59 am

Hello,

When cutting an audio file, I have observed the following: If I shorten longer pauses or remove mouth noises (with "delete"), a crackling noise usually arises at the point.

This parts is difficult to remove. Sometimes fade out, disabling or amplification to minus db helps. Sometimes I need all the effects, sometimes it doesn't work at all. Deleting the crackling part creates two of them. :x I haven't found anything about it on the internet. Please help ne on how to remove parts without creating crackling sounds.

Before:
bef.JPG
bef.JPG (23.62 KiB) Viewed 1898 times
After:
aft.JPG
aft.JPG (21.45 KiB) Viewed 1898 times

jademan
Forum Crew
Posts: 1853
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Re: Removing parts creates crackling sound

Post by jademan » Sun Sep 19, 2021 12:04 pm

To avoid this situation, see Select Menu: At Zero Crossings

To correct this situation, see Crossfade Clips

beginner94
Posts: 2
Joined: Sun Sep 19, 2021 8:44 am
Operating System: Windows 10

Re: Removing parts creates crackling sound

Post by beginner94 » Tue Oct 05, 2021 12:49 pm

Thank you, it was really helpful.

Unfortunately, that doesn't help me with pops within a word. I have a pop filter and the following sample recording is not the typical case of P, B etc. I couldn't see if it was overdriven during the recording because the interface was out of view. Could that be the cause? It's very hard to isolate that.
Attachments
pop.mp3
(10.18 KiB) Downloaded 37 times

steve
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Re: Removing parts creates crackling sound

Post by steve » Tue Oct 05, 2021 1:16 pm

beginner94 wrote:
Tue Oct 05, 2021 12:49 pm
pop.mp3
Zooming in very close (https://manual.audacityteam.org/man/zooming.html)
we can see a discontinuity in the waveform.

First Track000.png
Bad edit
First Track000.png (15.59 KiB) Viewed 1398 times

Such discontinuities are audible as clicks or pops.

By carefully choosing the start and end points of the selection, we can make a cut after which the waveform is continuous across the edit point:

First Track001.png
Selected at zero crossing points
First Track001.png (16.72 KiB) Viewed 1398 times
First Track002.png
selected audio deleted
First Track002.png (16.36 KiB) Viewed 1398 times
Learn more about Nyquist programming at audionyq.com

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