There are four notable types of delivery to consider before you give a speech. These are the impromptu, manuscript, memorized, and extemporaneous deliveries. Below is a more in depth explanation of each of these.
Impromptu Delivery- this delivery is used when someone is asked to speak in front of a group without prior knowledge or planning. Because the speaker was not planning to speak there was no preparation or research done beforehand. This delivery type is often the most anxiety inducing because the lack of preparation, but there are a few things you can do to help you seem prepared to the audience. If you are asked to give an impromptu speech remember to be brief, only speak about what you know, and avoid rambling.
Manuscript Delivery- this type of delivery is done using a fully written out speech that can be hand-written, printed, or digital. This method works well for speeches with complicated information or ones that will go on to be published. It is important to remember to not read directly from the script the whole time you are speaking, as this can cause you and the audience to disconnect.
Memorized Delivery- this type of delivery is done by memorizing the entirety of the speech and speaking without any notes or script. This method can be tricky to do well because of how error-prone our memories can be. Memorizing your speech can be affective for short-speeches, personal speeches, or a speech that will be delivered multiple times or frequently.
Extemporaneous- this type of delivery is done by memorizing the general structure of the speech and using brief notes that layout keywords and phrase. This method takes elements from the other types and blends them together. Like the memorization delivery, this method requires extra practice so you can perfect the flow of your speech and improve your points along the way.
Rate- how fast you speak. If you speak too quickly the audience will not be able to understand you, but if you speak too slowly, they may lose interest and their focus.
Volume- how loud or soft your voice is while you speak. You want to speak loud enough that everyone in the room can hear you, but not so loud that the audience feels like you are shouting at them.
Articulation- the clarity of sounds and words we produce. Make sure to pronounce the consonants in every word clearly. For example, if you say the word "didn't" make sure to enunciate the d's because otherwise it can sound like "dinnt" Having good articulation skills will improve your credibility to your audience.
Fluency Hiccups- unintended pauses in a speech that usually result from forgetting what you were saying, being distracted, or losing your place in your speaking notes.
Verbal Fillers- words that speakers use to fill in a gap between sentence or thoughts. Examples of these are: um, uh, ah, er, you know, and like. Try to filter these out of your speech, and if you must pause for a moment, it is better to have a silent one than use a verbal filler.