Author considered dynamic contrasts of music and proposed a philosophy that student musicians can readily understand. (Author/RK)

Discusses the causes and problems associated with increasing levels of noise pollution in urban societies. Particular attention is given to noise emanating from aircraft and to possible means of reducing this problem and its resulting psychological stress and social strain. (JR)

A discussion of the standards issued by the American National Standards Institute for audiovisual equipment used primarily for speech. (HB)

Research supported by a grant from the National Institute of Mental Health. (DD)

Revised version of a paper presented at the December 27, 1972 meeting of the Linguistic Society of America in Atlanta, Georgia; research supported by the National Science Foundation. (DD)

Research supported by a grant from the National Institutes of Health. (DD)

Describes a simulated experiment in which a ship's position is determined by the Doppler principle. The formulas derived for the real satellite system are given. (CC)

Research for this report supported by grants from the National Research Council and the Medical Research Council of Canada. (RS)

Brief descriptions of several of the laboratory experiments which have been incorporated into an acoustics course for music majors. Includes vibratory motion and sound generation, nature, speed, and pitch of sound, spectrum analysis and electronic synthesis of musical sound and some conventional sound experiments. (Author/TS)