A "strong background in signal processing" is not required to generate the results detailed in this article using ffmpeg.
Nor does this article provide any information enhancing the user's understanding of the encoding options employed by the various presets discussed or the ultimate effects they hold in regard to signal processing.
Nor does this article provide any information enhancing the user's understanding of the encoding options employed by the various presets discussed or the ultimate effects they hold in regard to signal processing.