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

Speech recognition by computers is discussed, including methods of recognizing isolated words and procedures for analyzing connected speech. Describes Bell Laboratories' speech recognition system which attempts to combine major elements of human communication into a single operating unit. (DS)

Presents techniques for evaluating the acoustics (reverberation time, and standing waves and resonance phenomena) of a band performance room. Gives instructions for building and placing inexpensive baffles (free-standing, portable sound barriers) to correct room defects. (SJL)

Describes an advanced undergraduate physics experiment which permits the measurement of ultrasound velocity and absorption in liquid systems. A description of the tasks the student is expected to perform is also included. (HM)

Presents four notes that report new equipment and techniques of interest to physics teachers. These notes deal with collosions of atoms in solids, determining the viscosity of a liquid, measuring the speed of sound and demonstrating Doppler effect. (HM)

Described are the components for a high-fidelity sound-reproducing system which focuses on various program sources, the amplifier, and loudspeakers. Discussed in detail are amplifier power and distortion, air suspension, loudspeaker baffles and enclosures, bass-reflex enclosure, drone cones, rear horn and acoustic labyrinth enclosures, horn…

Unusual experiments in sound are described. Sounds produced from the vibration of areas are represented by many beautiful sand patterns. The vibrating areas vary from square to circular plates. (SA)

Examines the acquisition of new sound changes by 3- and 4-year-old children in asymmetrical child care situations. Results reveal that the children had acquired the changes and emphasize that the dialect transmission period begins before the age of maximal peer group influence. The findings support the possibility that child care asymmetry affects…

The influence of information level on the production of accuracy of 20 children was examined. Data were children's productions of nouns in sets of utterances referring to triplets of pictures representing noun-verb-noun utterances. (Author/JL)

Studies of vowel length acquisition indicate an initial stage in which phonological vowel length is random followed by a stage in which either long vowels or short vowels and codas are produced. To determine whether this sequence of acquisition applies to a group of German-speaking children, monosyllabic and disyllabic words are transcribed and…

Describes the School of Music and Fine Arts at Palm Beach Atlantic University, Florida, which was built to be visually appealing and acoustically superb, and the Samuel H. Smith Center for Undergraduate Education at Washington State University, which was designed to reflect the latest teaching methods and features flexible spaces and a computer…

Reviews research on uses of computer sound and suggests how sound might be used effectively by instructional and interface designers. Topics include principles of interface design; the perception of sound; earcons, both symbolic and iconic; sound in data analysis; sound in virtual environments; and guidelines for using sound. (70 references) (LRW)

This article describes a demonstration in which a straightened coathanger supported by threads and held near the ears resembles bells or gongs when struck. A mathematical explanation of the effect is provided. (MVL)

Examined the relationship between infants' early verbal imitation, when the ability to copy behaviors first emerges, and their lexical development during the second year of life. Twenty infants were examined longitudinally at ages 10, 13, 17, and 21 months. Suggests that infants' early imitation of words not in their repertoires predicts and may…