A monotone voice is a vocal utterance or series of speech sounds in one unvaried tone. It is a voice that stays at the same level of pitch, tone, volume, speed, and pauses throughout the speech. A monotone voice sounds flat, dull, and boring, and it doesnt reflect any changes in mood, attitude, or emphasis. It can make a conference presentation dull, boring, and ineffective, and can cause the speaker to lose the audiences attention, interest, and trust. A monotone voice is different from a quiet voice, as vocal tonality or pitch is different from volume. To identify if you have a monotone voice, you can record yourself speaking and listen to the playback, or ask for feedback from someone you trust. To avoid a monotone voice and improve vocal variety, plan the speech carefully and identify the key points to convey. Use different vocal techniques to highlight them, such as changing pitch, tone, volume, speed, and pauses. Practicing the speech out loud with gestures can also help convey emotions and make the voice seem more exaggerated.