Contributing to Kdenlive
johnar1 at protonmail.com
Thu Aug 23 16:18:48 BST 2018
Compiling the latest git of ffmpeg did not help unfortunately, also converting the audio to 48khz did not work.
The only way I have been able to get rid of all audio pops in a 5 minute video is by changing the project profile from 59.9FPS to 25FPS or lower.
I am now convinced that it is actually the frame rate of the video that is at fault.
Now I use a lot of slide animations which I would like to be rendered at 60FPS in order for them to appear smooth.
Is there any way I can export the audio with 25FPS pacing, but still be applicable to a 60FPS source?
I am out of ideas, unfortunately.
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‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On August 22, 2018 10:44 PM, johnar1 <johnar1 at protonmail.com> wrote:
> Hey Steve and Harald, thank you for your input!
> I typically use up to 30-40 clips for one Youtube Video, which I upload daily.
> You can check out the channel if you'd like, it's "UFC Digest".
> Upsampling them to 48khz would be a pain, but I will try a couple upsampled test clips just to check if the pops go away.
> Right now I have compiled the latest version of ffmpeg git and I am rendering with different profiles and in different formats.
> I have read on the kdenlive forum that ffmpeg audio thumbnails could be related, seeing as many users have reported the same issue, but a solution was never found.
> Since Eugen specifically mentioned ffmpeg as the source of the problem, I will make sure to test every possible ffmpeg related scenario, before I move to the next workaround.
> Thank you all again, for your great insights!
> Sent with [ProtonMail](https://protonmail.com) Secure Email.
> ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
> On August 22, 2018 6:00 PM, Harald Albrecht <harald.albrecht at gmx.net> wrote:
>> second the 48kHz suggestion. early on I noticed issues with 44.1kHz, switched to 48kHz and had no audio issues anymore, but then I stick with 25fps. use audacity to upsample.
>> best regards,
>> -------- Ursprüngliche Nachricht --------
>> Von: Steve Brodie <stevebrodie at gmail.com>
>> Datum: 22.08.18 17:40 (GMT+01:00)
>> An: kdenlive at kde.org
>> Betreff: Re: Contributing to Kdenlive
>> Hi John,
>> I don't know but reading Eugen's email I get the impression that if you can use 48kHz audio this problem will go away-but I may be mistaken! Also, if it is a problem with FFMPEG then we are looking for a work around in Kdenlive rather than a solution. So, if I'm correct about 48k audio, then my suggestions would be...
>> · Can you acquire your audio in 48kHz in the future?
>> · If not can you use the 'Extract Audio' command in Kdenlive (right click on file in Project bin > Extract Audio>Wav 48000Hz ?
>> · For your current project that might not be a practical solution as you will have to replace all your edited audio on the timeline. So maybe your best option would be to use the Render > Stem Audio Export, and then create a 48kHz audio mix in Audacity or Ardour, then bring this back into your Kdenlive project, turn off all the old audio tracks and re-export with the new 48kHz audio file.
>> I hope something there might help!
>> Best wishes,
>> On Wed, 22 Aug, 2018 at 2:31 PM, johnar1 <johnar1 at protonmail.com> wrote:
>>> Do you guys have any idea how I can keep exporting the video at 59FPS and still solve the audio/out of synch issue Eugen spoke of?
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