matlab語(yǔ)音增強(qiáng)算法的仿真[獨(dú)家原創(chuàng)].doc
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matlab語(yǔ)音增強(qiáng)算法的仿真[獨(dú)家原創(chuàng)],matlab語(yǔ)音增強(qiáng)算法的仿真6600字自己原創(chuàng)的畢業(yè)論文，已經(jīng)通過(guò)校內(nèi)系統(tǒng)檢測(cè)，重復(fù)率低，僅在本站獨(dú)家出售，大家放心下載使用摘要人們?cè)谡Z(yǔ)音通信的過(guò)程中，常常會(huì)受到各種環(huán)境噪聲的干擾，如餐廳的噪聲、汽車噪聲以及其他人的講話聲等。由于各種類型的噪聲，現(xiàn)今的語(yǔ)音通信系統(tǒng)嚴(yán)重惡化。噪聲不僅會(huì)影響語(yǔ)音的質(zhì)量，更會(huì)使人耳感覺(jué)疲勞...
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Matlab語(yǔ)音增強(qiáng)算法的仿真
6600字
自己原創(chuàng)的畢業(yè)論文，已經(jīng)通過(guò)校內(nèi)系統(tǒng)檢測(cè)，重復(fù)率低，僅在本站獨(dú)家出售，大家放心下載使用
摘要
人們?cè)谡Z(yǔ)音通信的過(guò)程中，常常會(huì)受到各種環(huán)境噪聲的干擾，如餐廳的噪聲、汽車噪聲以及其他人的講話聲等。由于各種類型的噪聲，現(xiàn)今的語(yǔ)音通信系統(tǒng)嚴(yán)重惡化。噪聲不僅會(huì)影響語(yǔ)音的質(zhì)量，更會(huì)使人耳感覺(jué)疲勞。
語(yǔ)音增強(qiáng)算法是旨在盡可能的消除語(yǔ)音信號(hào)中的噪聲，提高語(yǔ)音信號(hào)的可懂度及減小失真度。經(jīng)過(guò)數(shù)十年的發(fā)展，大量的語(yǔ)音增強(qiáng)算法被提出，本文主要研究其中的LMS算法，并通過(guò)Matlab仿真實(shí)現(xiàn)該算法。LMS算法也就是最小均方算法，在上世紀(jì)60年代就被提出，由于其實(shí)現(xiàn)簡(jiǎn)單并且對(duì)信道統(tǒng)計(jì)特性變化具有穩(wěn)健性，獲得了極為廣泛的應(yīng)用。實(shí)驗(yàn)結(jié)果表明，LMS算法具有良好的語(yǔ)音增強(qiáng)效果。
關(guān)鍵詞：語(yǔ)音增強(qiáng)，噪聲，質(zhì)量，可懂度，LMS算法
ABSTRACT
In the process of speech communication,people always be interfered by noise which exist in natural environment,such as noise in restaurant,car and other people's voices.Due to various type of noise,speech communication system of today become worse and worse.Noise not only affects the quality of the speech, but also will make people’ear feel tired.
Speech enhancement algorithm aim at eliminate the noise in noisy speech signal as much as possible, improve the intelligibility of noisy speech signal and reduce distortion.After several decades of development, a large number of speech enhancement algorithms have been proposed,this paper studies the LMS algorithm which is one of the speech enhancement algorithms,and simulate the algorithm by using Matlab.LMS algorithm,also known as Least mean square algorithm,was proposed in the 1960s,it is widely used in various fields,because of it can be simply realized and keep steady while statistical properties of channel changed.Experimental results show that, LMS algorithm has good effect in speech enhancement.
KEY WORDS: speech enhancement, noise,quality, intelligibility,LMS algorithm
目錄
第一章 緒論 1
1.1 課題的研究背景 1
1.2 語(yǔ)音增強(qiáng)的歷史和發(fā)展現(xiàn)狀 1
1.3 本文的主要研究?jī)?nèi)容及結(jié)構(gòu)安排 2
第二章 語(yǔ)音增強(qiáng)的基礎(chǔ)知識(shí) 3
2.1 人耳的感知特性 3
2.2 噪聲的分類和及特性 3
2.2.1 噪聲的分類 3
2.2.2 噪聲的特性 3
2.3語(yǔ)音特性 4
第三章 基于LMS算法的語(yǔ)音增強(qiáng)技術(shù) 6
3.1 LMS算法原理 6
3.2 LMS算法的Matlab仿真結(jié)果 8
3.2.1 輸入信號(hào)為正弦信號(hào)的仿真結(jié)果 8
3.2.2 輸入信號(hào)是語(yǔ)音信號(hào) 10
總結(jié) 14
致謝 15
參考文獻(xiàn) 16
附錄 17
6600字
自己原創(chuàng)的畢業(yè)論文，已經(jīng)通過(guò)校內(nèi)系統(tǒng)檢測(cè)，重復(fù)率低，僅在本站獨(dú)家出售，大家放心下載使用
摘要
人們?cè)谡Z(yǔ)音通信的過(guò)程中，常常會(huì)受到各種環(huán)境噪聲的干擾，如餐廳的噪聲、汽車噪聲以及其他人的講話聲等。由于各種類型的噪聲，現(xiàn)今的語(yǔ)音通信系統(tǒng)嚴(yán)重惡化。噪聲不僅會(huì)影響語(yǔ)音的質(zhì)量，更會(huì)使人耳感覺(jué)疲勞。
語(yǔ)音增強(qiáng)算法是旨在盡可能的消除語(yǔ)音信號(hào)中的噪聲，提高語(yǔ)音信號(hào)的可懂度及減小失真度。經(jīng)過(guò)數(shù)十年的發(fā)展，大量的語(yǔ)音增強(qiáng)算法被提出，本文主要研究其中的LMS算法，并通過(guò)Matlab仿真實(shí)現(xiàn)該算法。LMS算法也就是最小均方算法，在上世紀(jì)60年代就被提出，由于其實(shí)現(xiàn)簡(jiǎn)單并且對(duì)信道統(tǒng)計(jì)特性變化具有穩(wěn)健性，獲得了極為廣泛的應(yīng)用。實(shí)驗(yàn)結(jié)果表明，LMS算法具有良好的語(yǔ)音增強(qiáng)效果。
關(guān)鍵詞：語(yǔ)音增強(qiáng)，噪聲，質(zhì)量，可懂度，LMS算法
ABSTRACT
In the process of speech communication,people always be interfered by noise which exist in natural environment,such as noise in restaurant,car and other people's voices.Due to various type of noise,speech communication system of today become worse and worse.Noise not only affects the quality of the speech, but also will make people’ear feel tired.
Speech enhancement algorithm aim at eliminate the noise in noisy speech signal as much as possible, improve the intelligibility of noisy speech signal and reduce distortion.After several decades of development, a large number of speech enhancement algorithms have been proposed,this paper studies the LMS algorithm which is one of the speech enhancement algorithms,and simulate the algorithm by using Matlab.LMS algorithm,also known as Least mean square algorithm,was proposed in the 1960s,it is widely used in various fields,because of it can be simply realized and keep steady while statistical properties of channel changed.Experimental results show that, LMS algorithm has good effect in speech enhancement.
KEY WORDS: speech enhancement, noise,quality, intelligibility,LMS algorithm
目錄
第一章 緒論 1
1.1 課題的研究背景 1
1.2 語(yǔ)音增強(qiáng)的歷史和發(fā)展現(xiàn)狀 1
1.3 本文的主要研究?jī)?nèi)容及結(jié)構(gòu)安排 2
第二章 語(yǔ)音增強(qiáng)的基礎(chǔ)知識(shí) 3
2.1 人耳的感知特性 3
2.2 噪聲的分類和及特性 3
2.2.1 噪聲的分類 3
2.2.2 噪聲的特性 3
2.3語(yǔ)音特性 4
第三章 基于LMS算法的語(yǔ)音增強(qiáng)技術(shù) 6
3.1 LMS算法原理 6
3.2 LMS算法的Matlab仿真結(jié)果 8
3.2.1 輸入信號(hào)為正弦信號(hào)的仿真結(jié)果 8
3.2.2 輸入信號(hào)是語(yǔ)音信號(hào) 10
總結(jié) 14
致謝 15
參考文獻(xiàn) 16
附錄 17
