Spatial processing of speech sounds by the human auditory cortex was studied measuring neuromagnetic responses utilizing magnetoencephalography (MEG). Realistic spatial sound environment was produced using modern stimulus generation methodology utilizing head-related transfer functions (HRTFs). In order to compare localization of speech sounds to that of nonspeech, the stimulus set involved thr...

Speech perception and speech production are two related complex processes. The success of cochlear implant can be evaluated only by studying both the perception and production. The present study compares the perception and production of the phonologically significant contrasts (vowels) of the children with cochlear implants with those of age matched normal hearing children. The vowel perception...

This study investigated the effects of High Variability Phonetic Training (HVPT) in training both the perception and production of English highfront vowels /ɪ/-/iː/ and high-back vowels /ʊ/-/uː/ by Cantonese ESL learners. Results showed that the HVPT was generally effective in improving the subjects’ perception of the two vowel pairs and perceptual learning could generalize to new words and new...

In some languages (e.g. Czech), changes in vowel duration affect word meaning, while in others (e.g. Spanish) they do not. Yet for other languages (e.g. Dutch), the linguistic role of vowel duration remains unclear. To reveal whether Dutch represents vowel length in its phonology, we compared auditory pre-attentive duration processing in native and non-native vowels across Dutch, Czech, and Spa...

The spectral characteristics of vowels in Modern Greek and German were examined. Four speakers of Modern Greek and three speakers of German produced four repetitions of words containing each vowel of their native language. Measurements of the fundamental frequency and the first three formats were made for each vowel token. These measurements were then transformed into log frequency ratios and p...

OBJECTIVE To compare P1-N1-P2-N2 response latencies and amplitudes evoked by voiced and unvoiced consonant-vowel syllables (CVS) /bi/-/pi/ and /di/-/ti/ by analyzing how the cortical responses to consonants and vowels interact during the formation of a syllable-evoked response. MATERIALS AND METHODS Auditory late latency responses were recorded from 12 healthy individuals between the ages of ...

In this study, the correlations in Hainan Cham between IF0 and tones are analyzed. The study shows that, while for five speakers it is possible to suggest that this correlation is an automatic consequence of vowel production, one subject shows an especially exaggerated IF0 effect that suggests a deliberate auditory enhancement. The study also shows a non-mechanical enhancement of IF0 to enhance...

Purpose: The GRBAS (grade, roughness, breathiness, asthenia, strain) scale, a 4-point has been most widely used for judging auditory-perceptual severity dysphonia. However, in current clinical practice, sometimes more fragmented 0.5 scheme is being if the original scale ambiguous to assess. Thus, aim of present study was compare dysphonia using three evaluation tools, 4-point, 7-point and CAPEV...

Our ability to understand auditory signals depends on properly separating the mixture of sound arriving from multiple sources. Sound elements tend to belong to only one object at a time, consistent with the principle of disjoint allocation, although there are instances of duplex perception or coallocation, in which two sound objects share one sound element. Here we report an effect of "nonalloc...