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Audio "click" noise at start of audio clip

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hmethorst
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Running:

Version 15.13.0
KDE Frameworks 5.15.0
Qt 5.4.2 (built against 5.4.2)
The xcb windowing system


When previewing, I hear nothing, and to help mitigate, I am even using Fade in to combat this issue, but I still hear a faint "pop" sound at the beginning of my audio clips.

Any ideas?
vpinon
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Hello,
I believe we've heard of similar things several times already, but can't remember the conclusions sorry :-\
What is the format of your source (audio codec, muxer) ? Is it still present if you transcode audio to wav ?
What are FFmpeg version, MLT version... ?
Cheers,
Vincent
hmethorst
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Hey there, I am using WAV (recorded in Audacity).

As far as MLT version, I'll have to investigate...
hmethorst
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vpinon wrote:Hello,
I believe we've heard of similar things several times already, but can't remember the conclusions sorry :-\
What is the format of your source (audio codec, muxer) ? Is it still present if you transcode audio to wav ?
What are FFmpeg version, MLT version... ?
Cheers,
Vincent



FYI also running Kubuntu 15.10, if that helps.
hmethorst
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ii ffmpeg 7:2.7.6-0ubuntu0.15.10.1 amd64 Tools for transcoding, streaming and playing of multimedia files


henry@kubuntu:~/Downloads$ dpkg --list | grep mlt
ii libmlt++3 6.1.0+git20160312.4b1012d5-0ubuntu0~sunab~wily1 amd64 MLT multimedia framework C++ wrapper (runtime)
ii libmlt-data 6.1.0+git20160312.4b1012d5-0ubuntu0~sunab~wily1 all multimedia framework (data)
ii libmlt6 6.1.0+git20160312.4b1012d5-0ubuntu0~sunab~wily1 amd64 multimedia framework (runtime)
henry@kubuntu:~/Downloads$
hmethorst
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Would still like some help with this if possible
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Stetsbequem
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Hi hmethorst,
hmethorst wrote:When previewing, I hear nothing, and to help mitigate, I am even using Fade in to combat this issue, but I still hear a faint "pop" sound at the beginning of my audio clips.

I know the problem. Workaround: export the audio track (separate) from Kdenlive to lossless (Wave, Flac); if the noise still occurs, take Audacity for correction. (Video and audio can be packed with a suitable tool in the appropriate container.) HTH ;-)


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vpinon
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hmethorst
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Stetsbequem wrote:Hi hmethorst,
hmethorst wrote:When previewing, I hear nothing, and to help mitigate, I am even using Fade in to combat this issue, but I still hear a faint "pop" sound at the beginning of my audio clips.

I know the problem. Workaround: export the audio track (separate) from Kdenlive to lossless (Wave, Flac); if the noise still occurs, take Audacity for correction. (Video and audio can be packed with a suitable tool in the appropriate container.) HTH ;-)



Hi there,

My audio clips are actually voice over tracks recorded in audacity in WAV. It is when I take a WAV and cut it within kdenlive. I suppose I can just produce individual WAV files from audacity but it's just a bit more tedious than it should have to be.

nm I see what you are getting at. Okay yes this would work but again quite tedious. Thanks

Last edited by hmethorst on Tue Mar 22, 2016 4:04 am, edited 1 time in total.
hmethorst
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vpinon wrote:hello, does this help ?
viewtopic.php?f=271&t=122725&p=323625#p323625



Are you inferring to the "add empty track at bottom" suggestion? I have no idea what the does but I'll try. Thanks
TheDiveO
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I think that vpinion suggests using an empty audio track. There's also the empty video track method but I don't think that vpinion refers to that.


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