Summarizing research activities from January 1982 to December 1982, this is the eighth annual report of research on speech perception, analysis and synthesis conducted in the Speech Research Laboratory of the Department of Psychology at Indiana University. The report includes extended manuscripts, short reports, progress reports, and information…

The cause of music consonance perception is not known, but consonance has been defined by both physical and perceptual characteristics. This study tested the extent of differences in interval perceptions and preferences in a non-musically trained group of adults. The independent variables of frequency range, condition of presentation, and harmonic…

The effects of the aural-impress and the creative-literary methodologies in teaching reading to 104 educationally retarded and disadvantaged third graders were investigated. The 52 experimental-group pupils received instruction for three 40-minute periods weekly for 16 weeks. Aural-impress procedures were used for 15 minutes each period, followed…

This study examined the relationship between initial and final consonants on two equivalent forms of the Wepman Auditory Discrimination Test (WADT). Subjects were 128 first grade, English-speaking, Negro, disadvantaged children. The two WADT forms each contained 40 different word-pairs. Thirteen word-pairs differed in initial consonant (IPT); 13…

A study consisting of acoustic measurements at fourteen sites in the London area and 1200 interviews dealing with the effects of the noise conditions prevailing at each of these sites has been carried out with the object of developing acceptability criteria for traffic noise from roads in residential areas. Dissatisfaction with the noise…

The author reports the results of a study based on an assumption that there might be an association of certain acoustic variables with the telling of lies. Twenty subjects were asked to perform two tasks, each involving four short oral responses, one of which was a lie. The responses were subjected to spectrographic analysis, and the task of the…

A model of phoneme identification is proposed which describes the process by which continuous acoustic featural information about the place of articulation and the voicing of speech sounds is integrated during phoneme identification. (AM)

The auditory receptive language skills of 40 learning disabled (LD) and 40 non-disabled boys (all 7 - 11 years old) were assessed via computerized versions of subtests of the Goldman-Fristoe-Woodcock Auditory Skills Test Battery. The computerized assessment correctly identified 92.5% of the LD group and 65% of the normal control children. (DB)

Because young children have poorer auditory temporal resolution than older children, a study measured the auditory filters of two 6-year-olds, two 10-year-olds, and two adults by having them detect a 400-ms sinusoid centered in a spectral notch in a band of noise. (HOD)

Reports two experiments which support the hypothesis that reaction time is faster to phonemes when the phonetic context matches the listener's expectation than when the vowel context is different. Reaction time to syllable targets is equal to phoneme, matched context targets. (PMJ)

A study investigated temporal resolution of auditory perception (TRAP), verbal working memory, and speech perception in 15 children with language impairment and 99 controls. No deficits in TRAP were found in the subjects and thresholds were similar. There were significant differences in performance on speech perception and verbal working memory.…

In three amplitude discrimination experiments involving a backward masking task, children's rate of perceptual processing was compared to that of adults. Developmental differences in discrimination were compensated for by increases in the psychophysical difference between test tones. No developmental differences in rate of perceptual processing…

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…

This study examined the abilities of adult listeners to discriminate and identify temporal order of sounds presented in tonal sequence. Listeners had either normal hearing or mild to moderate sensorineural hearing losses. In general, older listeners performed more poorly than younger listeners on the discrimination and identification tasks. Order…