This report is one of a regular series on the status and progress of speech research. Manuscript topics are categories and context in the perception of isolated steady-state vowels; tongue position in rounded and unrounded front vowel pairs; the reading behavior of dyslexics: is there a distinctive pattern?; articulatory units: segments or…

Digital audio sampling is explained, and some of its implications in digital sound applications are discussed. Digital sound equipment is rapidly replacing analog recording devices as the state-of-the-art in audio technology. The philosophy of digital recording involves doing away with the continuously variable analog waveforms and turning the…

The aim of this paper is to show how the noise reduction by signal accumulation can be accomplished with a data acquisition system. This topic can be used for student projects. In many cases, the noise reduction is an unavoidable part of experimentation. Several techniques are known for this purpose, and among them the signal accumulation is the…

By electronically segmenting stimuli in German, two tests of perception of quantity related to tense or lax syllabic quantity were made possible. In one, the physical duration of the stressed vowel was shortened, and in the other, the occlusion of the consonant following the stressed vowel was shortened. (MSE)

This paper describes the types of microphones that are available for use in media production. Definitions of 16 words and phrases used to describe microphones are followed by detailed descriptions of the two kinds of microphones as classified by mode of operation, i.e., velocity, or ribbon microphones, and pressure operated microphones, which…

Author described ways in which acoustics can be adjusted to suit the needs of the performing ensemble and the style of the music. (Editor/RK)

A SPEECH BASED ON THE OBSERVATIONS OF MILLARD J. SMITH, PRINCIPAL OF SHAKER HIGH SCHOOL, LATHAM, NEW YORK, REGARDING THE USE OF CARPETING CONCLUDES THE BEHAVIOR PATTERNS OF THE STUDENTS ARE ALTERED BY THE USE OF CARPETING. CARPETS PROVIDE THE OPPORTUNITY TO USE OTHER AREAS OF THE SCHOOL AS CLASSROOMS. HALLS, CORRIDORS, STAIRS, LOBBIES, AND FLOOR…

Airflow outside the mouth is diagnostic of articulatory activities in the vocal tract, both total volume-velocity and the distribution of particle velocities over the flow-front being useful for this purpose. A system for recording and displaying both these types of information is described. This consists of a matrix of l6 hot-wire anemometer flow…

A total of 441 articles related to the semantic and acoustic properties of memory are cross-referenced and listed alphabetically with the authors' original abstract or summary. (Author)

This study investigates the influence of initial and final consonants /p, b, s, z/ on the duration of four vowels /I, i, u, ae/ in 64 CVC syllables uttered by eight speakers of English from the same dialect area. The CVC stimuli were presented to the subjects in a frame sentence from a master tape. Subjects repeated each sentence immediately after…

This paper reviews Philip Lieberman's "Intonation, Perception, and Language," (Research Monograph No. 38) Cambridge, Massachusetts, M.I.T. Press, 1967. The review is also scheduled to appear in the "Journal of Linguistics." (JD)

The unclassified, annotated bibliography is Volume I of a two-volume set on Noise Pollution - Sonic Boom in a series of scheduled bibliographies on Environmental Pollution. Volume II is Confidential. Corporate author-monitoring agency, subject, title, contract, and report number indexes are included. (Author/JR)

Consonant identification was examined in four profoundly hearing-impaired children (ages 13-14) under five conditions. Performance was better in the vision alone condition than audition alone using hearing aids in free-field. No consistent differences were recorded across three auditory-visual conditions, including one with syllabic compression…

This article reviews the history, the use and the reasons for abandonment of the selective adaptation paradigm. The four experiments mentioned in the article show that selective adaptation produces strong reaction time effects, and that items in the adapted category are identified more slowly than unadapted items. (JAZ)

Eight subjects were tested for perceptual trading relations between a temporal and a spectral cue for the "say-stay" distinction. Results indicated that young children perceptually integrate multiple cues to a speech contrast in a phonetically relevant manner but that they may not give the same perceptual weights to the various cues as…