People view vocal style as “decoration”

Purposes that vocal style has on a speech:

• To emphasize certain points. A speaker can use changes in pitch, volume, or rate of speech to highlight important information. For example, a speaker might speak more slowly and deliberately when making a key point, or they might raise their voice to emphasize a call to action.
• To create a sense of urgency or excitement. The tone and volume of a speaker’s voice can be used to create a certain mood or atmosphere. For example, a speaker might use a loud, urgent tone to create a sense of excitement or urgency, or they might use a softer, more subdued tone to create a sense of calm or reflection.
• To build rapport with the audience. The way a speaker speaks can help them to connect with their audience on a personal level. For example, a speaker might use humor or stories to connect with their audience, or they might use a warm and inviting tone of voice to make them feel welcome.
• To persuade the audience to agree with the speaker. The way a speaker speaks can have a significant impact on whether or not their audience agrees with them. For example, a speaker might use logical arguments or emotional appeals to persuade their audience, or they might use a confident and authoritative tone of voice to make their points seem more credible.
• To make the speech more memorable. The way a speaker speaks can help to make their speech more memorable for their audience. For example, a speaker might use vivid language or storytelling to capture their audience’s attention, or they might use a variety of vocal techniques to keep their audience engaged.

In short, vocal style is more than just “decoration” for a speech. It can be used to emphasize certain points, create a sense of urgency or excitement, build rapport with the audience, persuade the audience, and make the speech more memorable.