Modes can be used in a persuasive manner. The way that the announcer says things or the music can all affect us in different ways, even if we do not think that they will. When you choose what to use for each mode it is important to choose things that will affect people in a way that you want them too be affected. For example lets look at 2 different pieces of audio.
Audio 1
When you listen to this piece of audio, most people will generally feel afraid or scared since the audio gives off a spooky vibe. Someone might use this audio in a scary movie or an ad designed to frighten people.
Audio 2
When you listen to this audio, you become happier since the music has a bright and cheerful mood. This affects us in a different way than Audio 1 does.
I think that if you are trying to persuade someone via a commercial or video advertisement, than it is important to make sure your audio matches with what you are trying to advertise. If you are advertising a stuffed dog toy for kids, then it is not appropriate to use scary music or else you might deter people from buying your product. And the aural mode is just one mode out of 5, so it is key to make sure that the other modes are also in tune with what you are trying to communicate.
Source 1:https://www.youtube.com/watch?v=OrPEoqp4sjg
Source2:https://www.youtube.com/watch?v=7pRRFJyqpQ8