<div>Hi, Eugen!<br></div><div><br></div><div>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.<br></div><div><br></div><div>Yes sir, I use Lubuntu 18.04 and Kubuntu 18.04.<br></div><div>I just checked and the clips are ususally 44.1khz 16bit.<br></div><div><br></div><div>The only way I can get rid of all pops is if I render with a 25FPS profile.<br></div><div>50FPS, 59.9 and 60FPS all produce the same pops.<br></div><div><br></div><div>It's driving me so insane omg, I can't sleep anymore.<br></div><div><br></div><div class="protonmail_signature_block"><div class="protonmail_signature_block-user protonmail_signature_block-empty"><br></div><div class="protonmail_signature_block-proton">Sent with <a target="_blank" href="https://protonmail.com">ProtonMail</a> Secure Email.<br></div></div><div><br></div><div>‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐<br></div><div> On August 27, 2018 8:58 PM, Eugen Mohr <eugen.mohr@gmx.net> wrote:<br></div><div> <br></div><blockquote type="cite" class="protonmail_quote"><p><br></p><p><br></p><p><br></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
line-height:normal"><span style="font-family:"Arial", "sans-serif"" class="font"><span style="font-size:10pt" class="size">Hi John</span></span><br></p><p><br></p><p><br></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
line-height:normal"><span style="font-family:"Arial", "sans-serif"" class="font"><span style="font-size:10pt" class="size">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.</span></span><br></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
line-height:normal"><span style="font-family:"Arial", "sans-serif"" class="font"><span style="font-size:10pt" class="size">Do you have this problem at playback or
after you have rendered the video
out?</span></span><span style="font-family:"Arial", "sans-serif"" class="font"><span style="font-size:12pt" class="size"></span></span><br></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
line-height:normal"><span style="font-family:"Arial", "sans-serif"" class="font"><span style="font-size:10pt" class="size">BTW: you are on Linux?</span></span><span style="font-family:"Arial", "sans-serif"" class="font"><span style="font-size:12pt" class="size"></span></span><br></p><div><span style="font-family:"Arial", "sans-serif"" class="font"><span style="font-size:10pt" class="size"></span></span><span style="font-family:"Arial", "sans-serif"" class="font"><span style="font-size:12pt" class="size"></span></span>Eugen<br></div><div> <span style="font-size:10pt" class="size"></span><span style="mso-ansi-language:EN-US" lang="EN-US"></span> <br></div><p><br></p><div><br></div><div class="moz-cite-prefix">Am 26.08.2018 um 22:28 schrieb johnar1:<br></div><blockquote type="cite"><div>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.<br></div><div><br></div><div>Is there a solution for this problem apart from converting
every audio track to 48khz? <br></div><div>Switching the 60FPS profile to 25FPS and rendering the audio
produces no clicks, but the audio has multiple blank parts and
is unusable.<br></div><div><br></div><div>Hope you can give a little more insight in this matter.<br></div><div><br></div><div>Thanks a bunch!<br></div><div><br></div><div class="protonmail_signature_block"><div class="protonmail_signature_block-user
protonmail_signature_block-empty"><br></div><div class="protonmail_signature_block-proton">Sent with <a target="_blank" href="https://protonmail.com">ProtonMail</a> Secure Email.<br></div></div><div><br></div><div>‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐<br></div><div>On August 21, 2018 8:53 PM, Eugen Mohr <a class="moz-txt-link-rfc2396E" href="mailto:eugen.mohr@gmx.net"><eugen.mohr@gmx.net></a> wrote:<br></div><div><br></div><blockquote type="cite" class="protonmail_quote"><p><br></p><div>Hi John<br></div><div><br></div><div>It comes 2 things to my mind:<br></div><div>- 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.<br></div><div>- 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.<br></div><div><br></div><div>Merlimau<br></div><div><br></div><div><br></div><div class="moz-cite-prefix">Am 21.08.2018 um 19:55 schrieb
johnar1:<br></div><blockquote type="cite"><div>Hey Jean, thank you for that valuable info.<br></div><div><div><br></div></div><div>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.<br></div><div>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.<br></div><div>These audio pops only come up in the rendered output, not
during playback.<br></div><div>When I only render a small selected zone surrounding the
area where I know the pop will be, it does not occur.<br></div><div>Only when I render the full project, they appear.<br></div><div>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.<br></div><div><div><br></div></div><div>The next thing I have noticed is that switching the
playback settings betwen SDL and RTAudio can affect this
issue as well.<br></div><div><div><br></div></div><div>As you know me now, I will now enter full testing mode
and report back to you with a more detailed analysis.<br></div><div>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.<br></div><div><div><br></div></div><div>Anything else I should consider?<br></div><div><div><br></div></div><div>Best regards,<br></div><div><div><br></div></div><div>John<br></div><div><br></div><div class="protonmail_signature_block"><div class="protonmail_signature_block-user
protonmail_signature_block-empty"><br></div><div class="protonmail_signature_block-proton">Sent with <a target="_blank" href="https://protonmail.com">ProtonMail</a> Secure Email.<br></div></div><div><br></div><div>‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐<br></div><div>On August 20, 2018 10:23 AM, Jean-Baptiste Mardelle <a class="moz-txt-link-rfc2396E" href="mailto:jb@kdenlive.org"><jb@kdenlive.org></a> wrote:<br></div><div><br></div><blockquote type="cite" class="protonmail_quote"><div>On 18.08.2018 14:55, johnar1 wrote:<br></div><div><br></div><blockquote type="cite"><div>Hey Jean and guys!<br></div><div><br></div></blockquote><div><br></div><div>Hello Johnar!<br></div><div><br></div><div><br></div><div><br></div><blockquote type="cite"><div>I have uncovered a new problem with the latest stable
AppImage 18.04.1 release of kdenlive which is very
troublesome.<br></div><div><br></div><div>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.<br></div><div><br></div><div>I have also found that audio pops disappear in the
same footage disappear when switching from SDL to
RTAudio in the settings.<br></div><div><br></div><div>I am using a fresh install of Kubuntu 18.04 with
updates and <br></div><div><div>Mlt and ffmpeg versions all from the Appimage, so
this has to be a thing in kdenlive or maybe the latest
Alsa / Pulseaudio package?<br></div></div><div><br></div><div>I have tried some stuff suggested in forums such as
exporting only the audio in wav, but without luck.<br></div><div><br></div></blockquote><div><br></div><div>I have just uploaded the 18.08.0 AppImage containing
the latest MLT. Could you check if the problem still
happens ?<br></div><div>It is available here:<br></div><div><br></div><div><a class="moz-txt-link-freetext" href="https://files.kde.org/kdenlive/release/kdenlive-18.08.0-x86_64.AppImage.mirrorlist">https://files.kde.org/kdenlive/release/kdenlive-18.08.0-x86_64.AppImage.mirrorlist</a><br></div><div><br></div><div>Thanks for your feedback.<br></div><div><br></div><div>Jean-Baptiste<br></div><div><br></div><div><br></div><blockquote type="cite"><div>Any ideas?<br></div><div><br></div><div>Regards<br></div><div><br></div><div class="protonmail_signature_block"><div class="protonmail_signature_block-user
protonmail_signature_block-empty"><br></div><div class="protonmail_signature_block-proton"> <br></div></div><div>‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐<br></div><div>On July 26, 2018 9:20 AM, Jean-Baptiste Mardelle <a class="moz-txt-link-rfc2396E" href="mailto:jb@kdenlive.org"><jb@kdenlive.org></a> wrote:<br></div><div><br></div><blockquote type="cite" class="protonmail_quote"><div><br></div><div class="moz-cite-prefix">On 23.07.2018 00:21, Juku
Trump wrote:<br></div><blockquote type="cite"><div dir="ltr"><div>Hi,<br></div><div><br></div></div></blockquote><div><br></div><div>Hello Juku!<br></div><div><br></div><div>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.<br></div><div><br></div><div>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.<br></div><div><br></div><div>Best regards,<br></div><div><br></div><div>Jean-Baptiste<br></div><div><br></div><div><br></div><blockquote type="cite"><div dir="ltr"><div>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.<br></div><div><br></div><div>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.<br></div><div><br></div><div>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 (<a href="https://phabricator.kde.org/D14281" class="gmail-phui-handle" style="text-decoration:none;color:rgb(19,108,178);font-family:"Segoe
UI","Segoe UI Emoji","Segoe
UI Symbol",Lato,"Helvetica
Neue",Helvetica,Arial,sans-serif;text-align:left">D14281</a>) for review.<br></div><div><br></div><div>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?<br></div><div><br></div><div>It would be helpful if someone would suggest
some other tasks which I could start with.<br></div><div><br></div><div>Thanks,<br></div><div>Juku<br></div></div></blockquote></blockquote><div><br></div></blockquote></blockquote><div><br></div></blockquote></blockquote><div><br></div></blockquote></blockquote><div><br></div>