Hi, Eugen! Yes, during problem there are no pops. They only appear in the rendered output file. Another thing I have noticed is, that they only happen at the beginning or end of overlapping clips when there is a transition (Slide) or Volume Keyframable Effect involved.
Yes sir, I use Lubuntu 18.04 and Kubuntu 18.04. I just checked and the clips are ususally 44.1khz 16bit. The only way I can get rid of all pops is if I render with a 25FPS profile. 50FPS, 59.9 and 60FPS all produce the same pops. It's driving me so insane omg, I can't sleep anymore. Sent with [ProtonMail](https://protonmail.com) Secure Email. ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ On August 27, 2018 8:58 PM, Eugen Mohr <eugen.m...@gmx.net> wrote: > Hi John > > I assume your audio file is not proper because FFMPEG can handle 44.1kHz. As > Vincent Pinon mentioned: check if the audio is: 44.1kHz, 16 bit, WAV pcm > (i.e. with the program MediaInfo). This is CD standard. Maybe 24bits work as > well. > > Do you have this problem at playback or after you have rendered the video out? > > BTW: you are on Linux? > > Eugen > > Am 26.08.2018 um 22:28 schrieb johnar1: > >> Eugen, would you mind being a little more specific on what you meant by >> 44.1khz audio and 60FPS video interfering with each other over time, which >> causes clicks? I have searched everywhere on google but could not find >> anything. >> >> Is there a solution for this problem apart from converting every audio track >> to 48khz? >> Switching the 60FPS profile to 25FPS and rendering the audio produces no >> clicks, but the audio has multiple blank parts and is unusable. >> >> Hope you can give a little more insight in this matter. >> >> Thanks a bunch! >> >> Sent with [ProtonMail](https://protonmail.com) Secure Email. >> >> ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ >> On August 21, 2018 8:53 PM, Eugen Mohr >> [<eugen.m...@gmx.net>](mailto:eugen.m...@gmx.net) wrote: >> >>> Hi John >>> >>> It comes 2 things to my mind: >>> - Do you cut the audio at the zero point? In Audition (for example) is a >>> function that you can cut only at that point (when the wave goes through >>> zero) to avoid clicks. >>> - When audio frequency (i.e. 44.1kHz) and video frequency (i.e. 60fps) >>> interfere each other after a time and from there you get clicks. Video >>> rendering is always video frequency driven. This would be a FFMPEG problem. >>> >>> Merlimau >>> >>> Am 21.08.2018 um 19:55 schrieb johnar1: >>> >>>> Hey Jean, thank you for that valuable info. >>>> >>>> I have tested the 18.08 version that you linked and unfortunately the pops >>>> at the beginning of audio clips still occur, but I have made an >>>> interesting discovery. >>>> When I render the entire project, there are three pops at the beginning of >>>> 3 clips, let's say at 01:23, 02:02 and 03:15 in the time line. >>>> These audio pops only come up in the rendered output, not during playback. >>>> When I only render a small selected zone surrounding the area where I know >>>> the pop will be, it does not occur. >>>> Only when I render the full project, they appear. >>>> I have tried this with all three known audio pops that I have spotted in >>>> the fully rendered project, and each time they disappear when I only >>>> render a selected area around them. >>>> >>>> The next thing I have noticed is that switching the playback settings >>>> betwen SDL and RTAudio can affect this issue as well. >>>> >>>> As you know me now, I will now enter full testing mode and report back to >>>> you with a more detailed analysis. >>>> I will compile the latest melt, ffmpeg and co in order to provide a full >>>> report, but I will use the AppImage versio 18.8.0 which you have suggested. >>>> >>>> Anything else I should consider? >>>> >>>> Best regards, >>>> >>>> John >>>> >>>> Sent with [ProtonMail](https://protonmail.com) Secure Email. >>>> >>>> ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ >>>> On August 20, 2018 10:23 AM, Jean-Baptiste Mardelle >>>> [<j...@kdenlive.org>](mailto:j...@kdenlive.org) wrote: >>>> >>>>> On 18.08.2018 14:55, johnar1 wrote: >>>>> >>>>>> Hey Jean and guys! >>>>> >>>>> Hello Johnar! >>>>> >>>>>> I have uncovered a new problem with the latest stable AppImage 18.04.1 >>>>>> release of kdenlive which is very troublesome. >>>>>> >>>>>> Randomly, kdenlive will cause a "click" or "pop" sound at the beginning >>>>>> of an audio track. I have observed that this happens the most when two >>>>>> audio tracks are overlapping or a cut has been made at the beginning of >>>>>> the a clip. >>>>>> >>>>>> I have also found that audio pops disappear in the same footage >>>>>> disappear when switching from SDL to RTAudio in the settings. >>>>>> >>>>>> I am using a fresh install of Kubuntu 18.04 with updates and >>>>>> Mlt and ffmpeg versions all from the Appimage, so this has to be a thing >>>>>> in kdenlive or maybe the latest Alsa / Pulseaudio package? >>>>>> >>>>>> I have tried some stuff suggested in forums such as exporting only the >>>>>> audio in wav, but without luck. >>>>> >>>>> I have just uploaded the 18.08.0 AppImage containing the latest MLT. >>>>> Could you check if the problem still happens ? >>>>> It is available here: >>>>> >>>>> https://files.kde.org/kdenlive/release/kdenlive-18.08.0-x86_64.AppImage.mirrorlist >>>>> >>>>> Thanks for your feedback. >>>>> >>>>> Jean-Baptiste >>>>> >>>>>> Any ideas? >>>>>> >>>>>> Regards >>>>>> >>>>>> ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ >>>>>> On July 26, 2018 9:20 AM, Jean-Baptiste Mardelle >>>>>> [<j...@kdenlive.org>](mailto:j...@kdenlive.org) wrote: >>>>>> >>>>>>> On 23.07.2018 00:21, Juku Trump wrote: >>>>>>> >>>>>>>> Hi, >>>>>>> >>>>>>> Hello Juku! >>>>>>> >>>>>>> Thanks a lot for your contribution and sorry for my late reply. Your >>>>>>> help is very welcome. I have now merged your contribution. Regarding >>>>>>> the tests, they need some work and currently don't all pass and crash. >>>>>>> We need to work on that. >>>>>>> >>>>>>> Regarding other tasks, we really need to make a list of UI improvements >>>>>>> that could be done without too much knowledge of the whole code. I will >>>>>>> try to spend some time on it tomorrow, help is welcome. But basically, >>>>>>> if there is any UI related thing that you want to improve, feel free to >>>>>>> ask and we can guide you if needed. >>>>>>> >>>>>>> Best regards, >>>>>>> >>>>>>> Jean-Baptiste >>>>>>> >>>>>>>> My name is Juku. I am a film hobbyist and I have been using Kdenlive >>>>>>>> for about 8 years. As I'm also a developer, I thought I would try my >>>>>>>> hand on contributing to Kdenlive. >>>>>>>> >>>>>>>> I have mostly been a web developer so far, so I do not have much >>>>>>>> experience with C++ (except for some tutorials) and I have never done >>>>>>>> any Qt development. >>>>>>>> >>>>>>>> I viewed the "Junior Jobs" section in Kdenlive Development Information >>>>>>>> page and tried to fix #384511 for start ("New project window does not >>>>>>>> fit to laptop screen (1366x768)"). Thanks to a hint by Christoph Feck >>>>>>>> in the comments below that bug, I got it fixed and submitted the patch >>>>>>>> ([D14281](https://phabricator.kde.org/D14281)) for review. >>>>>>>> >>>>>>>> Currently I'm having some trouble with the automated tests. Should >>>>>>>> they succeed in their current state or are there some known problems >>>>>>>> with them? >>>>>>>> >>>>>>>> It would be helpful if someone would suggest some other tasks which I >>>>>>>> could start with. >>>>>>>> >>>>>>>> Thanks, >>>>>>>> Juku
