Thank you Gautier, I found another solution.
As described in https://answers.launchpad.net/soundconverter/+question/247332 you can also install this ppa: ppa:mc3man/trusty-media that adds gstreamer0.10-ffmpeg package to the repos. Installing it solves the problem.
Maybe someone could fill an SRU request pointing that the update has important fixes for it to work properly.
Thank you Gautier, I found another solution.
As described in https:/ /answers. launchpad. net/soundconver ter/+question/ 247332 you can also install this ppa: trusty- media 10-ffmpeg package to the repos. Installing it solves the problem.
ppa:mc3man/
that adds gstreamer0.
Maybe someone could fill an SRU request pointing that the update has important fixes for it to work properly.