Those are both examples of signals we can't interpret interfering with the signal we're trying to interpret.
However, it's not like the electrical noise came to be by magic -- it's the result of many interactions that have a structure, and hence impart that structure on the "noise", we just lack key facts to be able to interpret that signal.
However, it's not like the electrical noise came to be by magic -- it's the result of many interactions that have a structure, and hence impart that structure on the "noise", we just lack key facts to be able to interpret that signal.