نتایج جستجو برای: speech processing

تعداد نتایج: 597595  

Journal: :Frontiers in Psychology 2021

Earlier studies have shown that musically trained individuals may a benefit in adverse listening situations when compared to non-musicians, especially speech-on-speech perception. However, the literature provides mostly conflicting results. In current study, by employing different measures of spoken language processing, we aimed test whether could capture potential differences between musicians...

1999
Manfred R. Schroeder

The processing of speech signals has a long and venerable history. As early as 1770 Wolfgang von Kempelen demonstrated his mechanical talking machine to the courts of Europe. In 1928 Homer Dudley invented the “vocoder” (voice coder) arguing that speech is specified by a few slowly varying parameters requiring only a fraction of the telephone bandwidth for transmission. A digital vocoder was fir...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده برق و کامپیوتر 1387

استفاده از سیستم های تشخیص هویت بیومتریک یکی از مطمین ترین روش ها برای کنترل دسترسی افراد به فضاهای حقیقی و مجازی می باشد. بکارگیری ویژگی های منحصر به فرد مانند اثر انگشت، چهره، عنبیه چشم، شبکیه چشم، شکل دست، صوت و امضا در سیستم های تشخیص هویت بیومتریک متداول می باشد. از آنجاکه روش های مبتنی بر صوت بسیار سریع بوده و بکارگیری آن برای کاربر آسان می باشد، در این پایان نامه یک سیستم تصدیق هویت مبتن...

Improving phoneme recognition has attracted the attention of many researchers due to its applications in various fields of speech processing. Recent research achievements show that using deep neural network (DNN) in speech recognition systems significantly improves the performance of these systems. There are two phases in DNN-based phoneme recognition systems including training and testing. Mos...

In this article a pre-processing method is introduced which is applicable in speech recognized texts retrieval task. We have a text corpus, t generated from a speech recognition system and a query as inputs,  to search queries in these documents and find relevant documents. A basic problem in a typical speech recognized text is some error percentage in recognition. This, results erroneously ass...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده علوم تربیتی و روانشناسی 1386

چکیده ندارد.

In this paper, the application of the Independent Component Analysis In this paper, the application of the Independent Component Analysis technique in speech-music separation is discussed. The separation algorithm is in the time domain. It needs the score function estimation to minimize the mutual information. For estimating score function, sufficient samples of the mixed (speech-music) signals...

Journal: :journal of ai and data mining 2015
d. darabian h. marvi m. sharif noughabi

the mel frequency cepstral coefficients are the most widely used feature in speech recognition but they are very sensitive to noise. in this paper to achieve a satisfactorily performance in automatic speech recognition (asr) applications we introduce a noise robust new set of mfcc vector estimated through following steps. first, spectral mean normalization is a pre-processing which applies to t...

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