The Voice and Diction of Conversation : Page 79
society in the same room with someone who sits there a-a-ah-ing his words 1
Another voice matter which everybody notices except the one speaking is force or loudness, and the lack of it. The discomfort the human race endures from people who talk so low that one must strain to hear them is extensive. It is as much a sin in a conversationalist as in a public speaker. An elocution book says, "Every effort to understand the word detracts from the thought." Loudness, of course, is relative. It has to be adjusted to the group and the place. Too much or too little is equally bad. A good conversationalist, truly considerate of his hearers, will talk just loud enough for everyone in his circle to hear easily, and for everyone outside it not to be forced to hear him.