The organization of your speech will naturally evolve from your research and will involve little effort on your part. I personally think this is a false statement because even though in order to write a speech on a certain topic, a research must be made, it would not be a speech itself if we just copy paste ideas we see on other sites or books, that'd be plain plagiarism. Through a speech we are supposed to give an open idea about a specific topic and it should be of original words and content.
) is the sound produced by humans and other vertebrates using the lungs and the vocal folds in the larynx, or voice box. Voice is not always produced as speech, however.