This affects both Kdenlive and Openshot. While trying to solve this problem I came across an old bug report on the Kdenlive bug tracker. Basically it had something to do with the way FFmpeg options were set.
https://bugs.kdenlive.org/view.php?id=2318 ** Bug watch added: bugs.kdenlive.org/ #2318 https://bugs.kdenlive.org/view.php?id=2318 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1388438 Title: No audio in rendered file To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kdenlive/+bug/1388438/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs