So common it's rather endearing when authors bother to point it out. E.g. in the Afterword (though probably better as a preface) to Greg Egan's Dichronauts, he says in a note on the translation: "If you could listen to the speech sounds used by the characters in this novel, not only would you hear no words in your own native language, you would not hear any of the proper names employed in the story ... Words such as "smile," "laugh," "groan," and so on are used to indicate the nature of the emotions that elicit these acts, rather than any anatomical or phonetic similarities to human utterances and gestures. ..."