Example: I installed autotalent with this command on Mint 18 with Kdenlive 16.08: sudo apt install autotalent The effect works in kdenlive, but if i render the video (MP4 / H264 / AAC) and then watch the mp4 file, the audio is normal, the effect isn't there. How i already wrote, autotalent is only one example. There are also other audio plugins i tested from the ubuntu repos. Most (or all? not tested all ;D ) of the audio effects installed with sudo apt install --install-recommends ubuntustudio-audio-plugins don't work. Reproducible: Always Steps to Reproduce: 1. Install autotalent (for example) 2. Add it to something in your timeline 3. Render the video and watch it Actual Results: The effect isn't there in the rendered video, audio is like without the effect. Expected Results: Audio should be modified. Using kdenlive 16.08 from "ppa:kdenlive/kdenlive-stable".
I have tested with various ladspa plugins and couldn't reproduce. I don't have the Autotalent plugin you mention though. Can you test with 16.08.1?
(In reply to farid from comment #1) > I have tested with various ladspa plugins and couldn't reproduce. I don't > have the Autotalent plugin you mention though. > > Can you test with 16.08.1? Demo Video now online. I said only a little, but this should be hearable. https://www.youtube.com/watch?v=AJgZPpsUTMg
(In reply to farid from comment #1) > I have tested with various ladspa plugins and couldn't reproduce. I don't > have the Autotalent plugin you mention though. > > Can you test with 16.08.1? I used 16.08.1. I forgot to show it in the video.
Sorry but I really couldn't tell the difference from the bad speakers in my laptop. Maybe someone else can help here...
(In reply to farid from comment #4) > Sorry but I really couldn't tell the difference from the bad speakers in my > laptop. Maybe someone else can help here... I changed some settings of the effect. Now the difference is better hearable: https://youtu.be/xX2JJU9QWAU
I can confirm the issue. It appears to be a problem in MLT. For some reason, some filters are not found by MLT's command line application melt, which causes it to discard this filter on rendering. I just forwarded the problem on MLT's mailing list
(In reply to Jean-Baptiste Mardelle from comment #6) > I can confirm the issue. It appears to be a problem in MLT. For some reason, > some filters are not found by MLT's command line application melt, which > causes it to discard this filter on rendering. > I just forwarded the problem on MLT's mailing list Ok, thanks ;)