Bug 381153 - Sound crackle when applying bandpass/highpass/lowpass/equaliser/bandstop
Summary: Sound crackle when applying bandpass/highpass/lowpass/equaliser/bandstop
Status: RESOLVED FIXED
Alias: None
Product: kdenlive
Classification: Applications
Component: Video Effects & Transitions (other bugs)
Version First Reported In: 17.04.0
Platform: Microsoft Windows Microsoft Windows
: NOR normal
Target Milestone: ---
Assignee: Vincent PINON
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2017-06-13 12:33 UTC by svofski
Modified: 2021-03-13 18:42 UTC (History)
3 users (show)

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:
fritzibaby: Brainstorm+

Attachments
highpass filter crackle example (101.11 KB, audio/ogg)
2017-06-13 12:33 UTC, svofski 		Details
Equalizer.png (8.77 KB, image/png)
2021-03-13 15:53 UTC, emohr 		Details
audio effect list (4.11 KB, image/png)
2021-03-13 18:42 UTC, Alex 		Details
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Description svofski 2017-06-13 12:33:19 UTC 
Created attachment 106072 [details]
highpass filter crackle example

Bandpass, highpass, lowpass, equalizer, bandreject (probably others too). These audio filters applied to track or clip cause audible crackling in the sound output. It sounds very regular, some 4 times per second and I guess the period is related to window/buffer size. This defect is present in rendered video too, so it's not only a preview artefact.

OS: Windows 10. Kdenlive 17.04.0, MLT version 6.5.0, ffmpeg-3.2.4-win64-shared.
Comment 1 emohr 2018-10-13 13:23:39 UTC 
Please try with the actual Kdenlive version 18.08.2
Comment 2 Vincent PINON 2021-02-14 20:17:21 UTC 
Sorry for huge answer delay.
Since then Kdenlive (MLT actually) evolved a lot.
Many known sound crackle have been solved in the past year, please try again...
Comment 3 Alex 2021-03-13 15:34:15 UTC 
With the last version (20.12.3) there is no equalizer available !
Comment 4 emohr 2021-03-13 15:53:49 UTC 
Created attachment 136647 [details]
Equalizer.png

Type "equalizer" into the effect search field and you should see it.
Comment 5 Alex 2021-03-13 18:42:04 UTC 
Created attachment 136650 [details]
audio effect list

In my version (20.12.3) linux appimage and also on windows there is also 8 effects. Maybe you installed also some addons (plugins)