Presents four examples of physics problems that can be solved with a graphing calculator. Problems included deal with motion, harmonic oscillations, sound waves, and blackbody radiation. (JRH)

This study examined the effect of acoustic conditions on reception of sound signals in 5 children (ages 1-4) with multisensory impairments. Results supported the significance of acoustic conditions, with signal-to-noise ratio singled out for its importance in the reception of sound signals. Implications for auditory training are drawn. (DB)

This study sought to identify patterns of impaired acoustic laryngeal reaction time as a function of response complexity parallel to metabolic measures of brain function. Findings indicated that the disruption in speech motor control for 16 adult male developmental stutterers was systematically related to metabolic asymmetry in left superior and…

Twenty-two hearing-impaired children (ages 9 to 13) with a hearing loss of 80 dB or greater completed 3 tasks of intonation perception and production. Acoustic analysis suggested a relationship between imitation and discrimination of intonation contours and a relationship between imitation and production of orally read sentences when a rising…

Investigates the utterances of 1 French and 1 U.S. infant at 0; 5,0; 8,0; 11, and 12 by transcribing and acoustically analyzing them for syllable duration and vowel format values. The French-learning infant tended to produce more regularly timed nonfinal syllables and showed significantly more final-syllable lengthening than the English-learning…

Seven children with phonological disorders were analyzed for imperceptible acoustic distinctions for seemingly homophonous word pairs, and treatment was applied. Results indicate that productive knowledge of sounds and contrasts facilitates rapid learning of those sounds in treatment, and presence of an acoustic distinction for a contrast does not…

Compared the effects of instruction using social interaction from a cognitive developmental perspective, and instruction with no peer interaction, on correspondence between sound and symbol as displayed through invented spelling. Children exposed to social interaction made greater gains than those exposed to individual work with teacher modeling.…

Four experiments involving 42 Harvard University students and 35 subjects addressing the role of attention in phonetic perception demonstrate that attention influences the signal-to-noise ratio in the phonetic encoding of acoustic cues. Implications for understanding speech perception and general theories of the role of attention in perception are…

This paper on physiologic correlates of speech production in children and youth with hearing impairments focuses specifically on the production of phonemes and includes data on respiration for speech production, phonation, speech aerodynamics, articulation, and acoustic analyses of speech by hearing-impaired persons. (Author/DB)

Evaluation of preoperative and postoperative equivalent ear canal volume measures on 334 children (ages 6 weeks to 6.7 years) with chronic otitis media with effusion found that the determination could be made very accurately for children 4 years and older. Criterion values for tympanic membrane perforation and preoperative and postoperative…

A study tested the quality and intelligibility, as judged by several listeners, of four users' electrolaryngeal speech, with and without filtering to compensate for perceptually objectionable acoustic characteristics. Results indicated that an adaptive filtering technique produced a noticeable improvement in the quality of the Transcutaneous…

This article reviews procedures for evaluating, measuring, and modifying noise and reverberation levels in the classroom environment. Recommendations include: relocating children away from high noise sources, such as fans, air conditioners, heating ducts, and faulty lighting fixtures, using sound-absorbing materials, using acoustical ceiling tile…

A study investigated the potential benefits of sound field amplification for 20 Inuit first and second language learners in Quebec. Ten of the students (ages 7-17) had hearing loss. Results showed significant improvements in speech intelligibility scores for students with hearing impairment and normal hearing in the amplified condition. (Contains…

This article reviews relevant literature on acoustical barriers to successful learning and provides guidance for school personnel making decisions regarding classroom facilities. Effects of noisy classrooms on young listeners, second language learners, and those with hearing loss are discussed. A rationale for the classroom acoustics standards is…