Experiments that measure the speed of sound in air are common in high schools and colleges. In the Kundt's tube experiment, a horizontal air column is adjusted until a resonance mode is achieved for a specific frequency of sound. When this happens, the cork dust in the tube is disturbed at the displacement antinode regions. The location of the…

Purpose: The purpose of this study was to evaluate the potential for estimating subglottal air pressure using a neck-surface accelerometer and to compare the accuracy of predicting subglottal air pressure relative to predicting acoustic sound pressure level (SPL). Method: Indirect estimates of subglottal pressure (P[subscript sg]') were obtained…

Purpose: The study was aimed at investigating what kind of lip positions are selected by Japanese adult participants for an unfamiliar Mandarin rounded vowel /y/ and if their lip positions are related to and/or differentiated from those for their native vowels. Method: Videotaping and post hoc tracking measurements for lip positions, namely…

Purpose: The purpose of this study was to present normative data of tympanometric measurements of wideband acoustic immittance and to characterize wideband tympanograms. Method: Data were collected in 84 young adults with strictly defined normal hearing and middle ear status. Energy absorbance (EA) was measured using clicks for 1/12-octave…

Despite the fact that many of the world's languages use lexical tone, the majority of language acquisition studies has focused on non-tone languages. Research on tone languages has typically investigated wellknown tone languages such as Mandarin and Cantonese Chinese. The current study looked at a Limburgian dialect of Dutch that uses lexical…

Background: Previous research has suggested that speech perception in elderly adults is influenced not only by age-related hearing loss or presbycusis but also by declines in cognitive abilities, by background noise and by the syntactic complexity of the message. Aims: To gain further insight into the influence of these cognitive as well as…

English-learning infants attend to lexical stress when learning new words. Attention to lexical stress might be beneficial for word learning by providing an indication of the grammatical class of that word. English disyllabic nouns commonly have trochaic (strong-weak) stress, whereas English disyllabic verbs commonly have iambic (weak-strong)…

Purpose: This study evaluated whether certain spectral ripple conditions were more informative than others in predicting ecologically relevant unaided and aided speech outcomes. Method: A quasi-experimental study design was used to evaluate 67 older adult hearing aid users with bilateral, symmetrical hearing loss. Speech perception in noise was…

This longitudinal study assessed three acoustic components of maternal infant-directed speech (IDS) -- pitch, affect, and vowel hyperarticulation -- in relation to infants' age and their expressive vocabulary size. These three individual components were measured in IDS addressed to infants at 7, 9, 11, 15, and 19 months (N = 18). All three…

Students from urban high schools are usually faced with adverse environmental factors in their pursuit of academic success. These factors make learning more challenging and may confound the measurement of academic performance itself. This study explores how one such factor, ambient noise, affects the measurement of mathematics achievement.…

Purpose: Subjective reports of listening effort are frequently inconsistent with behavioral and physiological findings. A potential explanation is that participants unwittingly substitute an easier question when faced with a judgment that requires computationally expensive analysis (i.e., heuristic response strategies). The purpose of this study…

Today, contemporary music emerges as an experimental phenomenon trapped in the laboratory environment rather than an element of skill. Modern music, where principles such as specialism and rationality are determinative, has become difficult to understand not only for performers who carry it on the stage but also for today's audience. One of the…

The design of a classroom space can make a big difference in student behavior and learning. The use of color, sound, light, furniture arrangements and more can help foster community and culture and promote understanding. Dillon discusses some easy ways to transform the classroom space that can help with classroom management.

One of the key abilities that every student should learn is mastering math skills. It is particularly difficult for blind students who have problems with access to information that is usually presented graphically for common pupils. One of such information in the case of mathematics is the presentation of graphs of functions and geometric shapes.…

This study aimed to determine the factors that influence student learning comfort in the classroom and its distribution. This explorative study employed 772 students who were elementary school, junior high school, and senior high school students in several Muhammadiyah Yogyakarta schools. Data collection techniques using open questionnaires. The…