A nasal separator was used to measure the oral and nasal components in the speech of a normal adult Australian population. Results indicated no difference in oral and nasal sound pressure levels for read versus spontaneous speech samples; however, females tended to have a higher nasal component than did males. (Author/TL)

Traditionally, the Doppler effect for sound is introduced in high school and college physics courses. Students calculate the perceived frequency for several scenarios relating a stationary or moving observer and a stationary or moving sound source. These calculations assume a constant velocity of the observer and/or source. Although seldom…

Summarizing research activities in 1989, this is the fifteenth annual report of research on speech perception, analysis, synthesis, and recognition conducted in the Speech Research Laboratory of the Department of Psychology at Indiana University. The report contains the following 21 articles: "Perceptual Learning of Nonnative Speech…

Information is provided on some of the interesting and newsworthy developments in physics and its related fields during 1983. Areas considered include: (1) acoustics; (2) astrophysics; (3) condensed matter physics; (4) crystallography; (5) physics education; (6) electron and atomic physics; (7) elementary particle physics; (8) fluid dynamics; (9)…

An acoustic study of German focused on voice frequency at sentence-, turn-, and discourse-end in conversations. The data were drawn from short dialogues in which the same word occurs at the ends of utterances, in the middle of a turn, at the end of a turn, and at the end of a discourse. The dialogues were read 10 times by a male and a female…

This report is one of a regular series on the status and progress of studies on the nature of speech, instrumentation for its investigation, and practical applications. The ten papers treat the following topics: speech synthesis as a tool for the study of speech production; the study of articulatory organization; phonetic perception; cardiac…

The relationship between the rhythms of spoken language and the rhythms of other human behavior is examined in terms of: (1) types of rhythmic structures observed, (2) rate of succession of rhythmic units, (3) a perceptual tendency equalization of physically unequal intervals, and (4) the variability of rhythmic motor action. (Author/RM)

Describes a survey of experiments including a stringed instrument experiment and discusses other instructional uses of cartridges. Includes information on the characteristics of cartridges. (GH)

Sarah Screech, Danny Decibel, Sweetie Sound and Neil Noisy describe their experiences in the world of sound and noise to elementary students. Presented are their reports, games and charts which address sound measurement, the effects of noise on people, methods of noise control, and related areas. The workbook is intended to stimulate students'…

Designed to assist elementary school teachers in stimulating students' interest in noise pollution, this manual provides information which supplements the "Sounds Alive Student Workbook." Suggested for each section of the workbook are discussion questions, experiments, projects and field trips. The guide is intended to provide teachers…

DEALS WITH THE ECONOMICS OF COMMERCIAL CARPETING INSTALLATIONS IN SCHOOLS. SHAKER HIGH SCHOOL IN NEW YORK WAS THE FIRST PUBLIC HIGH SCHOOL TO BE CARPETED. THE INDUSTRIAL SANITATION COUNSELORS OF LOUISVILLE, KENTUCKY, WAS SELECTED TO CONDUCT MAINTENANCE STUDIES WHICH INCLUDED METHODS, CLEANING COSTS, AND LEVELS OF CLEANLINESS QUALITY. THE OBJECTIVE…

This study applies the spectrographic techniques to the analysis of the 11 vowels in the Hanoi dialect of Vietnamese. The analysis involves 5,500 spectrograms made of 869 common words containing these vowels, which are identified and described in terms of their Formant 1 and Formant 2 frequencies. Chapter 1 discusses the dialectal features of the…

The acoustic absorption characteristics of informally dressed college students in typical classroom seating are shown to differ substantially from data for formally dressed audiences in upholstered seating. Absorption data, expressed as sabins per person or absorption coefficient per square foot, shows that there is considerable variation between…

Children's productions of words with stop-liquid clusters in the adult model are compared across six languages. Although the children learning these languages need not follow the same course of learning, processes operative on adult clusters are shown to be very similar. The children's productions all progressed through the same three major…