Voice modulation is the act of controlling and regulating your voice when you can. You can go lower, higher, louder, and softer when you want. Voice modulation is mostly used to convey a message during a speech because your tone of voice can add meaning to it. With voice modulation, you can use emphasis, pauses, and tonality to embellish your message accurately.

Voice modulation is a technique that has been used for a long time, and it makes a speech sound more interesting. Speaking monotonously can get boring, and if you use the wrong tone to communicate, you may confuse your audience. With some practice, you can use voice modulation to inject emotion into your speech and communicate more effectively. Once you nail this, you can move on to varying your rate of speech.