نتایج جستجو برای: speech presence uncertainty

تعداد نتایج: 803739  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1381

‏‎the hypothesis is that recent and frequent exposure to lexical items leads to a more fluent production of speech in terms of rate of speech. to test the hypothesis,a one-way anova experimental design was carried out. 24 sednior students of efl participated in a one-way interview test. data analyses revealed that those who were exposed frequently to the lexical items over a week prior to inter...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده ادبیات و علوم انسانی 1388

abstract: the present thesis includes ; one preface and 11speeches , that each speech considered in different researches . the prefact part , studied grammer back ground , the first speech considered a brief description about grammatical credits . the second speech considered the different typs of sentences , from structure and meaning points of view . the third speech considered the verb es...

2004
José C. Segura Ángel de la Torre Javier Ramírez Antonio J. Rubio M. Carmen Benítez

Noise compensation methods for speech recognition provide a cleaned version of the speech representation. Usually this cleaned version is the expected value of the speech parameters given the observed noisy speech and the noise statistic. A more realistic representation should include the probability distribution of the cleaned speech instead of its expected value in order to represent the unce...

Journal: :EURASIP J. Adv. Sig. Proc. 2011
Heather Pon-Barry Stuart M. Shieber

We address the problem of inferring a speaker’s level of certainty based on prosodic information in the speech signal, which has application in speech-based dialogue systems. We show that using phrase-level prosodic features centered around the phrases causing uncertainty, in addition to utterance-level prosodic features, improves our model’s level of certainty classification. In addition, our ...

2015
M. Z. Ibrahim D. J. Mulvaney M. F. Abas

Humans are often able to compensate for noise degradation and uncertainty in speech information by augmenting the received audio with visual information. Such bimodal perception generates a rich combination of information that can be used in the recognition of speech. However, due to wide variability in the lip movement involved in articulation, not all speech can be substantially improved by a...

Journal: :ادب عربی 0
محمد ابراهیم خلیفة الشوشتری أستاذ مشارک بجامعة الشهید بهشتی حسین پورمداح اردکانی ماجستیر فی اللغة العربیة

after finishing the collection of language elements which they wanted to restrict to the arabian peninsula, after organizing and categorizing them under deliberate subjects which include all the language aspects and finally after fulfilling all those scholastic stages, the syntax scholars found another scholastic stage which they felt obliged to deal with and this stage is ‘cause finding’. they...

2009
Ramón Fernández Astudillo Dorothea Kolossa Reinhold Orglmeister

Uncertainty decoding and uncertainty propagation, or error propagation, techniques have emerged as a powerful tool to increase the accuracy of automatic speech recognition systems by employing an uncertain, or probabilistic, description of the speech features rather than the usual point estimate. In this paper we analyze the uncertainty generated in the complex Fourier domain when performing sp...

1999
Tsuhan Chen Alex Hauptmann Michael Witbrock Matthew A. Siegler

Traditionally, indexing and searching of speech content in multimedia databases have been achieved through a combination of separately constructed speech recognition and information retrieval engines. Although each technology has a legacy of research, only recently have efforts been made to study the potential suboptimality of this strategy, and none of these efforts specifically addresses the ...

2006
Ari Abramson Israel Cohen

In this paper, we introduce a Markov-switching generalized autoregressive conditional heteroscedasticity (GARCH) model in the short-time Fourier transform (STFT) domain. A GARCH model is utilized with Markov switching regimes, where the parameters are assumed to be frequency variant. The model parameters are evaluated in each frequency subband and a special state (regime) is de ned for the case...

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