Volume
Volume refers to how loud or soft your voice is. As with speaking rate, you want to avoid the extremes of being too loud or too soft, but still vary your volume within an acceptable middle range. When speaking in a typically sized classroom or office setting that seats about twenty-five people, using a volume a few steps above a typical conversational volume is usually sufficient. When speaking in larger rooms, you will need to project your voice. You may want to look for nonverbal cues from people in the back rows or corners, like leaning forward or straining to hear, to see if you need to adjust your volume more. Obviously, in some settings, a microphone will be necessary to be heard by the entire audience. Like rate, audiences use volume to make a variety of judgments about a speaker. Softer speakers are sometimes judged as meek, which may lead to lowered expectations for the speech or less perceived credibility. Loud speakers may be seen as overbearing or annoying, which can lead audience members to disengage from the speaker and message. Be aware of the volume of your voice and, when in doubt, increase your volume a notch, since beginning speakers are more likely to have an issue of speaking too softly rather than too loudly.