What aspect of a speech is most affected by the speaker's tone of voice?

The aspect of a speech most influenced by the speaker's tone of voice is delivery. Delivery encompasses how a speaker presents their message, which includes voice modulation, pace, emphasis, and emotional expression. Tone of voice plays a crucial role in conveying feelings and perspectives, which can enhance or undermine the effectiveness of the message. A speaker's tone can evoke emotions in the audience and establish a connection, making the delivery feel more engaging and persuasive. For example, a warm and enthusiastic tone may help to inspire or motivate the audience, while a monotone delivery might lead to disengagement. Therefore, the way a speaker utilizes their voice directly impacts the overall effectiveness of their speech delivery.