Tag: screencast

Screen capture of a selected window with ffmpeg in Ubuntu

Posted on by phsamuel

After some trial and error and reading some other posts, I finally manage to capture screencast of a selected window with ffmpeg under 10.04. I am using the native ffmpeg from ubuntu and so recompiling is not needed. The command I’m using is as below. ffmpeg -f alsa -ac 2 -i pulse -f x11grab -r…

Making a noise free screencast

Posted on by phsamuel

Ubuntu has very convenient function to generate screencast. My favorite is gtk-recordMyDesktop. However, my mic isn’t very high quality and my screencast always ends up with annoying background noise. Actually, this noise can be easily removed by denoising tools such as Audacity. One just needs to exact the audio track, denoise it with Audacity, and…