نتایج جستجو برای: speech perception tests

تعداد نتایج: 603610  

جعفری, زهرا, لطفی, یونس, مظاهریزدی, ملیحه, ملایری, سعید ,

Nowadays it is known that doing pure tone audiometry just gives us some information about the degree and the type of hearing loss. Therefore a question is posed: How does a man use his hearing for speech perception and what is the necessity of using auditory perception tests? This research was a developmental study which was done in two stages: the first stage included modifying th...

2015
Antje Heinrich Helen Henshaw Melanie A. Ferguson

Listeners vary in their ability to understand speech in noisy environments. Hearing sensitivity, as measured by pure-tone audiometry, can only partly explain these results, and cognition has emerged as another key concept. Although cognition relates to speech perception, the exact nature of the relationship remains to be fully understood. This study investigates how different aspects of cogniti...

2005
V. Dogu Erdener Denis Burnham

It has been found that auditory-visual speech perception differs over languages, particularly between English and Japanese speakers. This difference emerges due to increased use of visual information by English speakers between 6 and 8 years [14]. This study investigates the linguistic factors that may cause changes in auditory-visual speech perception development. Children aged between 5 and 8...

Journal: :Developmental Cognitive Neuroscience 2016
Yuchun Chen Feng-Ming Tsao Huei-Mei Liu

This study used a longitudinal design to examine the development of mismatch responses (MMRs) to Mandarin lexical tones, an index of neural speech discriminative responses, in late talkers and typical controls at 3, 5, and 6 years of age. Lexical tones are phonetic suprasegments that distinguish the lexical meanings of syllables in tonal languages. The 2 year-old late talkers were later divided...

ژورنال: پژوهش در پزشکی 2008
احمدی, پریچهر, جعفری, زهرا, متصدی زرندی, مسعود, ملایری, سعید, عشایری, حسن,

Background: The main result of hearing impairment is reduction of speech perception. Patient with auditory neuropathy can hear but they can not understand. Their difficulties have been traced to timing related deficits, revealing the importance of the neural encoding of timing cues for understanding speech. Objective: In the present study psychoacoustic perception (minimal noticeable differen...

Journal: :auditory and vestibular research 0
saeid aarabi department of audiology, school of rehabilitation sciences, iran university of medical sciences, tehran, iran farnoush jarollahi department of audiology, school of rehabilitation sciences, iran university of medical sciences, tehran, iran sajed badfar department of audiology, school of rehabilitation, arak university of medical sciences, arak, iran reza hosseinabadi department of audiology, school of rehablitation, tehran university of medical sciences, tehran, iran mohsen ahadi department of audiology, school of rehabilitation sciences, iran university of medical sciences, tehran, iran

background and aim: it will be discussed about five mechanisms in relation to speech in noise perception; including neural encoding and decoding, centrifugal pathways, pitch perception, asymmetric sampling in time and cognitive skills. these mechanisms are related to each other and each is important to recognize speech in noise. in this article, we have tried to rely on the latest studies to de...

2005
Kevin Duh

In the first topic, we shall discover that sound/speech perception is not as simple as bunch of dancing hair cells. Instead, pyscho-acoustical experiments have shown complex phenomena in sound perception, such as hearing thresholds, non-linear relationship between intensity and loudness, and temporal/simultaneous masking. We also briefly discuss the difficulty of speech perception research and ...

Journal: :acta medica iranica 0
s.a. tabassi s.g. sepanlou j. lotfi

acquired color deficiency in the tritan axis in parkinson’s disease has already been reported, manifesting itself as impaired performance in various visual tasks. however, its clinical significance has always been controversial. in this study we evaluated the performance of parkinson s disease patients in lanthony 15-desaturated clinical test and for the first time, compared it with the standar...

Background: Speech perception ability depends on auditory and extra-auditory elements. The signal-to-noise ratio (SNR) is an extra-auditory element that has an effect on the ability to normally follow speech and maintain a conversation. Speech in noise perception difficulty is a common complaint of the elderly. In this study, the importance of SNR magnitude as an extra-auditory effect on speech...

2012
Stefan Steidl Tim Polzehl H. Timothy Bunnell Ying Dou Prasanna Kumar Muthukumar Daniel Perry Kishore Prahallad Callie Vaughn Alan W. Black

In this paper, we propose to evaluate the quality of emotional speech synthesis by means of an automatic emotion identification system. We test this approach using five different parametric speech synthesis systems, ranging from plain non-emotional synthesis to full re-synthesis of pre-recorded speech. We compare the results achieved with the automatic system to those of human perception tests....

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