نتایج جستجو برای: audio

تعداد نتایج: 68336  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده ادبیات 1391

this study investigated the effects of three kinds of gloss conditions, that is traditional non-call marginal gloss, audio gloss, and extended audio gloss, on reading comprehension and vocabulary gain of iranian upper- intermediate efl learners. to this end, three experimental and one control groups, each comprising 15 participants, took part in the current study. in order to ensure that the pa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی برق 1387

در این پایان نامه روشهای جداسازی سیگنالهای گوینده و موزیک، زمانی که فقط به سیگنال مخلوط دریافت شده از یک میکروفون دسترسی داریم مورد بررسی قرار می گیرد. بطور کلی روشهای جداسازی سیگنال در حالت تک میکروفونه به دو گروه تقسیم می شود : گروه اول روش هایی را شامل می شوند که اصول حاکم بر سیستم شنوایی را برای جداسازی انتخاب می کنند و گروه دوم روش هایی که با استفاده از اطلاعات قبلی از دو منبع، جداسازی را ...

Journal: :تحقیقات کتابداری و اطلاع رسانی دانشگاهی 0
مریم چهرقانی کارشناس ارشد علوم اطلاعات و دانش شناسی دانشگاه تهران فاطمه فهیم نیا دانشیار دانشکدۀ علوم اطلاعات و دانش شناسی دانشگاه تهران نادر نقشینه استادیار دانشکدۀ علوم اطلاعات و دانش شناسی دانشگاه تهران

purpose: this study aimed to identify and introduce the most important evaluation and production criteria of audio books based on users’ point of view.method: in terms of methodology, this study was among the quantitative studies and done with descriptive survey. the research instrument was researcher-made questionnaire. population was all users of audiolib website that used from audio books mo...

Journal: :journal of english language studies 0
dennis moradkhan assistant professor of applied linguistics, islamic azad university north tehran branch, iran behnaz jalayer ma in tefl, islamic azad university north tehran branch, iran

this study sought to investigate the impact of teaching speech acts and role relations through authentic audio-taped and video-taped materials on the level of iranian efl learners’ pragmatic competence. to this end, 55 intermediate learners were ed and randomly assigned to two experimental groups: the audio-taped group and the video-taped group. during the treatment, the audio-taped group recei...

Purpose: Audio books have a special stand in the publishing industry. Publishers around the world produce audio books with different criterions and standards. This study aimed to identify and introduce the most important criterions for evaluation and production of audio books from the producers' point of view. Methodology: this study was performed with qualitative content analysis of interview...

In this paper, we present a Compressive Sampling (CS)-based feature extraction method for audio signals. In the proposed approach, the audio signal is firstly segmented by hamming windows and the Discrete Fourier Transform (DFT) of the samples is calculated within each frame. Then, the normalized values of the DFT coefficients of each frame are accumulated. At the next step, the second DFT is a...

Journal: :Journal on Multimodal User Interfaces 2016

Journal: :journal of advances in computer research 0
fereshteh ghanbari adivi m.sc. computer systems architecture, dezfoul branch, islamic azad university, dezfoul, iran mohammad mehrnia m.sc. computer systems architecture, dezfoul branch, islamic azad university, dezfoul, iran

this paper presents a new audio encryption algorithm based on permutation and residue number system. in the current approach, signal samples are combined with residue number system through permutation; therefore, a specific noise is generated. then, the audio signal is combined with the noise, generated by the algorithm, to produce a silence signal. for this purpose, the algorithm uses a predef...

Journal: :Acoustical Science and Technology 2006

Journal: :Algorithms 2023

The rapid development of speech synthesis technology has significantly improved the naturalness and human-likeness synthetic speech. As technical barriers for are rapidly lowering, number illegal activities such as fraud extortion is increasing, posing a significant threat to authentication systems, automatic speaker verification. This paper proposes an end-to-end detection model based on audio...

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